topic Re: Error deploying BPMN20 containing a Web Service Task in Alfresco Archive

Error deploying BPMN20 containing a Web Service Task

ct1 — Tue, 17 Jan 2012 22:13:55 GMT

In Activiti 5.8 Explorer, I am trying to deploy a BPMN20 file that contains a Web Service Task. I have written a simple Web Service (very much like the one described in Activiti In Action, chapters 7 and 11). I can call the Web Service from a Java client successfully. I have tried to create a BPM

Re: Error deploying BPMN20 containing a Web Service Task

atifelkhachine — Tue, 17 Jan 2012 22:34:12 GMT

Hi,

Please try to put your jar 'jaxb-api-2.2.1.jar' in the activiti-rest\WEB-INF\lib OR in your apache-tomcat-6.0.32\lib

Best regards,
Atif

Re: Error deploying BPMN20 containing a Web Service Task

ct1 — Wed, 18 Jan 2012 16:25:51 GMT

Thank you for the quick reply.

I copied the 'jaxb-api-2.2.1.jar' to, first the C:\Activiti\acitiviti-5.8\apps\apache-tomcat-6.0.32\lib, then to the C:\Activiti\acitiviti-5.8\apps\apache-tomcat-6.0.32\webapps\activiti-rest\WEB-INF\lib, restarted the demo ("ant demo.start" in the C:\Activiti\activiti-5.8\setup directory), and got the same results when I tried to deploy the BPMN20 file. That is, I had the same exception noted in the intial post to the forum. (Also, I had deleted the "jaxb-api-2.2.1.jar" from the Apache lib directory before copying it to the activiti-rest\WEB-INF\lib directory, so it would be only in the activiti-explorer WEB-INF\lib and in the activiti-rest WEB-INF\lib directories).

Do you think I may have missed something else?

Also, after running the test above, I guessed you might point me to the Forums to a reply to similar problem that prompted a reply from Tijs Rademakers to another user on Oct. 4, 2011. (I think you can see that reply if you search on "Re: Running activiti-cxf-examples".) In the reply he listed a number of .jar files that needed to be in the WEB-INF\lib directories of activiti-explorer and activiti-rest in order to run the CXF Examples, so I went ahead and copied the versions of the .jar files he listed to both WEB-INF\lib directories and restarted Explorer. Now, when I try to deploy the BPMN20 file, I get the error shown below.

Do you think I should replace the later versions of the .jar files with the ones I had before, or is this progress and this error points to something else I may have done incorrectly? The cxf-rt-core-2.3.4.jar file, which is in the WEB-INF\lib directories of activiti-exployrer and activiti-rest, contains the "org/apache/cxf/bus/" but not the "org/apache/cxf/Bus"; do you think there is a difference and that I need another .jar file?

Thank you again for your attention and help. You must have the patience of Job to deal with all of us new-comers to Activiti and to many of the Web features.


INFO: Processing resource CheckPrevEmploymentProcess.bpmn20.xml
Jan 18, 2012 9:11:04 AM org.activiti.engine.impl.bpmn.parser.BpmnParse parseDefinitionsAttributes
INFO: XMLSchema currently not supported as typeLanguage
Jan 18, 2012 9:11:04 AM org.activiti.engine.impl.bpmn.parser.BpmnParse parseDefinitionsAttributes
INFO: XPath currently not supported as expressionLanguage
Jan 18, 2012 9:11:05 AM com.vaadin.Application terminalError
SEVERE: Terminal error:
com.vaadin.event.ListenerMethod$MethodException
Cause: java.lang.NoClassDefFoundError: org/apache/cxf/Bus
        at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:510)
        at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:164)
        at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1193)
        at com.vaadin.ui.Upload.fireUploadInterrupted(Upload.java:731)
        at com.vaadin.ui.Upload$1.streamingFailed(Upload.java:1037)
        at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.streamToReceiver(AbstractComm
unicationManager.java:612)
        at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleSimpleMultipartFileUp
load(AbstractCommunicationManager.java:469)
        at com.vaadin.terminal.gwt.server.CommunicationManager.handleFileUpload(CommunicationManager
.java:257)
        at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServ
let.java:495)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j
ava:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.ja
va:588)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NoClassDefFoundError: org/apache/cxf/Bus
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:247)
        at org.activiti.engine.impl.bpmn.parser.BpmnParse.getImporter(BpmnParse.java:295)
        at org.activiti.engine.impl.bpmn.parser.BpmnParse.parseImports(BpmnParse.java:279)
        at org.activiti.engine.impl.bpmn.parser.BpmnParse.parseRootElement(BpmnParse.java:213)
        at org.activiti.engine.impl.bpmn.parser.BpmnParse.execute(BpmnParse.java:192)
        at org.activiti.engine.impl.bpmn.deployer.BpmnDeployer.deploy(BpmnDeployer.java:81)
        at org.activiti.engine.impl.persistence.deploy.DeploymentCache.deploy(DeploymentCache.java:3
7)
        at org.activiti.engine.impl.persistence.entity.DeploymentManager.insertDeployment(Deployment
Manager.java:39)
        at org.activiti.engine.impl.cmd.DeployCmd.execute(DeployCmd.java:58)
        at org.activiti.engine.impl.cmd.DeployCmd.execute(DeployCmd.java:30)
        at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java
:24)
        at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInte
rceptor.java:42)
        at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInter
ceptor.java:42)
        at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.j
ava:130)
        at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.jav
a:40)
        at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)
        at org.activiti.engine.impl.RepositoryServiceImpl.deploy(RepositoryServiceImpl.java:43)
        at org.activiti.engine.impl.repository.DeploymentBuilderImpl.deploy(DeploymentBuilderImpl.ja
va:106)
        at org.activiti.explorer.ui.management.deployment.DeploymentUploadReceiver.deployUploadedFil
e(DeploymentUploadReceiver.java:88)
        at org.activiti.explorer.ui.management.deployment.DeploymentUploadReceiver.uploadFinished(De
ploymentUploadReceiver.java:71)
        at org.activiti.explorer.ui.custom.UploadComponent.uploadFinished(UploadComponent.java:173)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:490)
        … 21 more
Caused by: java.lang.ClassNotFoundException: org.apache.cxf.Bus
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
        … 48 more

Re: Error deploying BPMN20 containing a Web Service Task

atifelkhachine — Wed, 18 Jan 2012 16:44:24 GMT

Hi,

You have to add all the CXF dependencies. Did you add cxf-x.x.x.jar ? (i can see that the Bus.class interface is within this jar)

Hop this helps.

Best regards,
Atif

Re: Error deploying BPMN20 containing a Web Service Task

ct1 — Thu, 19 Jan 2012 15:23:12 GMT

Thanks again for looking at this for me.

The reason I took so long to reply is that I wanted to make sure I had all the dependencies for CXF. So I went to "http://cxf.apache.org/docs/cxf-dependency-graphs.data/cxf-dependency-240.png" to see the diagram of dependencies. I downloaded every .jar file on the page (as you can see from the list of files in the lib directory below). Then I restarted Explorer ("ant demo.start" in the C:\Activiti\activiti-5.8\setup directory) and tried to deploy the BPMN20 file again. That gave me the original exception, as noted below under "After getting all CSF dependencies - exception".

Since the exception pointed to "javax.xml.bind.JAXBElement<java.lang.String>", which is in the jaxb-api-2.2.1.jar, I thought something might be wrong with the .jar file, so I downloaded a new copy of the jaxb-api-2.2.1.jar and put it in the WEB-INF/lib directories of both activiti-explorer and activiti-rest. Then I started Explorer again (ant demo.start in the setup directory) and tried to deploy the BPMN20 file again. I got the same exception as noted above.

I then thought that Explorer might be able to find the JAXBElement.class if I extracted the .class file and put it in the classes directory. So I extracted the JAXBElement.class from the .jar file, made the directory path …\javax\xml\bind under the C:\Activiti\activiti-5.8\apps\apache-tomcat-6.0.32\webapps\activiti-explorer\WEB-INF\classes directory and under the C:\Activiti\activiti-5.8\apps\apache-tomcat-6.0.32\webapps\activiti-rest\WEB-INF\classes directory and put a copy of the JAXBElement.class in both directories. I restarted Explorer (ant demo.start in the setup directory) and tried to deploy the BPMN20 file again. I got the same exception, noted below.

This made me wonder where Exlorer is looking for .class files during the deployment. So I removed the jaxb-api-2.2.1.jar from both the activiti-rest\WEB-INF\lib and the activiti-explorer\WEB-INF\lib and got the same exception.

Can you make an other suggestions?

Thank you.

Files in the Lib Directory:

After getting all CSF dependencies - exception:
After downloading CXF Dependencies and attempting to deploy the BPMN20 file again, I got this exception (like the original exception):


INFO: Processing resource CheckPrevEmploymentProcess.bpmn20.xml
Jan 19, 2012 8:30:15 AM org.activiti.engine.impl.bpmn.parser.BpmnParse parseDefinitionsAttributes
INFO: XMLSchema currently not supported as typeLanguage
Jan 19, 2012 8:30:15 AM org.activiti.engine.impl.bpmn.parser.BpmnParse parseDefinitionsAttributes
INFO: XPath currently not supported as expressionLanguage
Jan 19, 2012 8:30:15 AM org.activiti.engine.impl.bpmn.parser.BpmnParse execute
SEVERE: Uknown exception
org.activiti.engine.ActivitiClassLoadingException: Class not found: javax.xml.bind.JAXBElement<java.
lang.String>
        at org.activiti.engine.impl.util.ReflectUtil.loadClass(ReflectUtil.java:81)
        at org.activiti.engine.impl.webservice.CxfWSDLImporter.importStructure(CxfWSDLImporter.java:
159)
        at org.activiti.engine.impl.webservice.CxfWSDLImporter.importTypes(CxfWSDLImporter.java:146)

        at org.activiti.engine.impl.webservice.CxfWSDLImporter.importFrom(CxfWSDLImporter.java:106)
        at org.activiti.engine.impl.webservice.CxfWSDLImporter.importFrom(CxfWSDLImporter.java:69)
        at org.activiti.engine.impl.bpmn.parser.BpmnParse.parseImports(BpmnParse.java:283)
        at org.activiti.engine.impl.bpmn.parser.BpmnParse.parseRootElement(BpmnParse.java:213)
        at org.activiti.engine.impl.bpmn.parser.BpmnParse.execute(BpmnParse.java:192)
        at org.activiti.engine.impl.bpmn.deployer.BpmnDeployer.deploy(BpmnDeployer.java:81)
        at org.activiti.engine.impl.persistence.deploy.DeploymentCache.deploy(DeploymentCache.java:3
7)
        at org.activiti.engine.impl.persistence.entity.DeploymentManager.insertDeployment(Deployment
Manager.java:39)
        at org.activiti.engine.impl.cmd.DeployCmd.execute(DeployCmd.java:58)
        at org.activiti.engine.impl.cmd.DeployCmd.execute(DeployCmd.java:30)
        at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java
:24)
        at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInte
rceptor.java:42)
        at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInter
ceptor.java:42)
        at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.j
ava:130)
        at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.jav
a:40)
        at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)
        at org.activiti.engine.impl.RepositoryServiceImpl.deploy(RepositoryServiceImpl.java:43)
        at org.activiti.engine.impl.repository.DeploymentBuilderImpl.deploy(DeploymentBuilderImpl.ja
va:106)
        at org.activiti.explorer.ui.management.deployment.DeploymentUploadReceiver.deployUploadedFil
e(DeploymentUploadReceiver.java:88)
        at org.activiti.explorer.ui.management.deployment.DeploymentUploadReceiver.uploadFinished(De
ploymentUploadReceiver.java:71)
        at org.activiti.explorer.ui.custom.UploadComponent.uploadFinished(UploadComponent.java:173)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:490)
        at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:164)
        at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1193)
        at com.vaadin.ui.Upload.fireUploadSuccess(Upload.java:744)
        at com.vaadin.ui.Upload$1.streamingFinished(Upload.java:1022)
        at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.streamToReceiver(AbstractComm
unicationManager.java:593)
        at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleSimpleMultipartFileUp
load(AbstractCommunicationManager.java:469)
        at com.vaadin.terminal.gwt.server.CommunicationManager.handleFileUpload(CommunicationManager
.java:257)
        at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServ
let.java:495)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j
ava:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.ja
va:588)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.JAXBElement<java.lang.String>
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:247)
        at org.activiti.engine.impl.util.ReflectUtil.loadClass(ReflectUtil.java:62)
        … 49 more
Jan 19, 2012 8:30:15 AM org.activiti.engine.impl.bpmn.deployer.BpmnDeployer deploy
INFO: Processing resource ResumeScreeningProcess.png
Jan 19, 2012 8:30:15 AM org.activiti.engine.impl.bpmn.deployer.BpmnDeployer deploy
INFO: Processing resource Application Screening Process.png

Re: Error deploying BPMN20 containing a Web Service Task

atifelkhachine — Thu, 19 Jan 2012 15:43:01 GMT

Hi,

Are you able to reproduce this issue with a test case ?
If yes, then please attach here your test case to see what is going wrong … (a maven project if possible)

Thanks,
Atif

Re: Error deploying BPMN20 containing a Web Service Task

ct1 — Thu, 19 Jan 2012 18:22:38 GMT

I really appreciate your looking into this.

I put together a tester class to test the deployment of the BPMN20 file (please see the source under Tester
Class Source Code below), ran it, and it failed with the same exception (please see below under
Exception In Unit Test).

I am unfamiliar with Maven, so I am afraid I cannot provide a Maven project. However, I hope
it will be possible for you to use a copy of the Eclipse project (there were quite a few unrelated
processes that I deleted before zipping the project). I think you will be able to extract the relavent
parts from the .zip file; if not, please let me know what other option I have to get the
necessary parts to you.

I just tried once to use the attach feature at the bottom of this page to attach the .zip file of the
Eclipse project, but I do not think the Reply went through, so I will try again.

Thank you yet again.

Test Class Source Code:


package opt.argo.org;

import static org.junit.Assert.*;

public class PrevEmploymentDeployTest 
{
 @Test
 public void startDeployTest()
 {
  ProcessEngine processEngine = ProcessEngineConfiguration
    .createStandaloneInMemProcessEngineConfiguration()
    .buildProcessEngine();
  
  RuntimeService runtimeService =
    processEngine.getRuntimeService();
  
  RepositoryService repositoryService = 
    processEngine.getRepositoryService();
  
  repositoryService.createDeployment()
    .addClasspathResource("CheckPrevEmploymentProcess.bpmn20.xml")
    .deploy();
  
  ProcessInstance processInstance = runtimeService
    .startProcessInstanceByKey("CheckPrevEmploymentProcess");
  
  assertNotNull(processInstance.getId());
  
  System.out.println("id " + processInstance.getId() 
       + " " + processInstance.getProcessDefinitionId());
  
 }

}

Exception in Unit Test:


Jan 19, 2012 11:06:20 AM org.activiti.engine.impl.db.DbSqlSession executeSchemaResource
INFO: performing create on engine with resource org/activiti/db/create/activiti.h2.create.engine.sql
Jan 19, 2012 11:06:20 AM org.activiti.engine.impl.db.DbSqlSession executeSchemaResource
INFO: performing create on history with resource org/activiti/db/create/activiti.h2.create.history.sql
Jan 19, 2012 11:06:20 AM org.activiti.engine.impl.db.DbSqlSession executeSchemaResource
INFO: performing create on identity with resource org/activiti/db/create/activiti.h2.create.identity.sql
Jan 19, 2012 11:06:20 AM org.activiti.engine.impl.ProcessEngineImpl <init>
INFO: ProcessEngine default created
Jan 19, 2012 11:06:20 AM org.activiti.engine.impl.bpmn.deployer.BpmnDeployer deploy
INFO: Processing resource CheckPrevEmploymentProcess.bpmn20.xml
Jan 19, 2012 11:06:20 AM org.activiti.engine.impl.bpmn.parser.BpmnParse parseDefinitionsAttributes
INFO: XMLSchema currently not supported as typeLanguage
Jan 19, 2012 11:06:20 AM org.activiti.engine.impl.bpmn.parser.BpmnParse parseDefinitionsAttributes
INFO: XPath currently not supported as expressionLanguage
Jan 19, 2012 11:06:20 AM org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing org.apache.cxf.bus.spring.BusApplicationContext@336d8196: startup date [Thu Jan 19 11:06:20 CST 2012]; root of context hierarchy
Jan 19, 2012 11:06:20 AM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [META-INF/cxf/cxf.xml]
Jan 19, 2012 11:06:20 AM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [META-INF/cxf/cxf-extension-jaxws.xml]
Jan 19, 2012 11:06:20 AM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [META-INF/cxf/cxf-extension-soap.xml]
Jan 19, 2012 11:06:20 AM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [META-INF/cxf/cxf-extension-xml.xml]
Jan 19, 2012 11:06:20 AM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [META-INF/cxf/cxf-extension-addr.xml]
Jan 19, 2012 11:06:20 AM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [META-INF/cxf/cxf-extension-http.xml]
Jan 19, 2012 11:06:20 AM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@4c345b43: defining beans [cxf,org.apache.cxf.bus.spring.BusApplicationListener,org.apache.cxf.bus.spring.BusWiringBeanFactoryPostProcessor,org.apache.cxf.bus.spring.Jsr250BeanPostProcessor,org.apache.cxf.bus.spring.BusExtensionPostProcessor,org.apache.cxf.resource.ResourceManager,org.apache.cxf.configuration.Configurer,org.apache.cxf.binding.BindingFactoryManager,org.apache.cxf.transport.DestinationFactoryManager,org.apache.cxf.transport.ConduitInitiatorManager,org.apache.cxf.wsdl.WSDLManager,org.apache.cxf.phase.PhaseManager,org.apache.cxf.workqueue.WorkQueueManager,org.apache.cxf.buslifecycle.BusLifeCycleManager,org.apache.cxf.endpoint.ServerRegistry,org.apache.cxf.endpoint.ServerLifeCycleManager,org.apache.cxf.endpoint.ClientLifeCycleManager,org.apache.cxf.transports.http.QueryHandlerRegistry,org.apache.cxf.endpoint.EndpointResolverRegistry,org.apache.cxf.headers.HeaderManager,org.apache.cxf.catalog.OASISCatalogManager,org.apache.cxf.service.factory.FactoryBeanListenerManager,org.apache.cxf.endpoint.ServiceContractResolverRegistry,org.apache.cxf.jaxws.context.WebServiceContextResourceResolver,org.apache.cxf.jaxws.context.WebServiceContextImpl,org.apache.cxf.binding.soap.SoapBindingFactory,org.apache.cxf.binding.soap.SoapTransportFactory,org.apache.cxf.binding.soap.customEditorConfigurer,org.apache.cxf.binding.xml.XMLBindingFactory,org.apache.cxf.ws.addressing.policy.AddressingAssertionBuilder,org.apache.cxf.ws.addressing.policy.AddressingPolicyInterceptorProvider,org.apache.cxf.ws.addressing.policy.UsingAddressingAssertionBuilder,org.apache.cxf.transport.http.policy.HTTPClientAssertionBuilder,org.apache.cxf.transport.http.policy.HTTPServerAssertionBuilder,org.apache.cxf.transport.http.policy.NoOpPolicyInterceptorProvider,org.apache.cxf.transport.http.ClientOnlyHTTPTransportFactory]; root of factory hierarchy
Jan 19, 2012 11:06:21 AM org.activiti.engine.impl.bpmn.parser.BpmnParse execute
SEVERE: Uknown exception
org.activiti.engine.ActivitiClassLoadingException: Class not found: javax.xml.bind.JAXBElement<java.lang.String>
 at org.activiti.engine.impl.util.ReflectUtil.loadClass(ReflectUtil.java:81)
 at org.activiti.engine.impl.webservice.CxfWSDLImporter.importStructure(CxfWSDLImporter.java:159)
 at org.activiti.engine.impl.webservice.CxfWSDLImporter.importTypes(CxfWSDLImporter.java:146)
 at org.activiti.engine.impl.webservice.CxfWSDLImporter.importFrom(CxfWSDLImporter.java:106)
 at org.activiti.engine.impl.webservice.CxfWSDLImporter.importFrom(CxfWSDLImporter.java:69)
 at org.activiti.engine.impl.bpmn.parser.BpmnParse.parseImports(BpmnParse.java:283)
 at org.activiti.engine.impl.bpmn.parser.BpmnParse.parseRootElement(BpmnParse.java:213)
 at org.activiti.engine.impl.bpmn.parser.BpmnParse.execute(BpmnParse.java:192)
 at org.activiti.engine.impl.bpmn.deployer.BpmnDeployer.deploy(BpmnDeployer.java:81)
 at org.activiti.engine.impl.persistence.deploy.DeploymentCache.deploy(DeploymentCache.java:37)
 at org.activiti.engine.impl.persistence.entity.DeploymentManager.insertDeployment(DeploymentManager.java:39)
 at org.activiti.engine.impl.cmd.DeployCmd.execute(DeployCmd.java:58)
 at org.activiti.engine.impl.cmd.DeployCmd.execute(DeployCmd.java:30)
 at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
 at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:42)
 at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)
 at org.activiti.engine.impl.RepositoryServiceImpl.deploy(RepositoryServiceImpl.java:43)
 at org.activiti.engine.impl.repository.DeploymentBuilderImpl.deploy(DeploymentBuilderImpl.java:106)
 at opt.argo.org.PrevEmploymentDeployTest.startDeployTest(PrevEmploymentDeployTest.java:29)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
 at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
 at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
 at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
 at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
 at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.JAXBElement<java.lang.String>
 at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
 at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
 at java.lang.Class.forName0(Native Method)
 at java.lang.Class.forName(Class.java:247)
 at org.activiti.engine.impl.util.ReflectUtil.loadClass(ReflectUtil.java:62)
 … 40 more
Jan 19, 2012 11:06:21 AM org.activiti.engine.impl.interceptor.CommandContext close
SEVERE: Error while closing command context
org.activiti.engine.ActivitiException: no processes deployed with key 'CheckPrevEmploymentProcess'
 at org.activiti.engine.impl.persistence.deploy.DeploymentCache.findDeployedLatestProcessDefinitionByKey(DeploymentCache.java:62)
 at org.activiti.engine.impl.cmd.StartProcessInstanceCmd.execute(StartProcessInstanceCmd.java:58)
 at org.activiti.engine.impl.cmd.StartProcessInstanceCmd.execute(StartProcessInstanceCmd.java:31)
 at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
 at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:42)
 at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)
 at org.activiti.engine.impl.RuntimeServiceImpl.startProcessInstanceByKey(RuntimeServiceImpl.java:41)
 at opt.argo.org.PrevEmploymentDeployTest.startDeployTest(PrevEmploymentDeployTest.java:32)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
 at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
 at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
 at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
 at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
 at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

Re: Error deploying BPMN20 containing a Web Service Task

atifelkhachine — Thu, 19 Jan 2012 20:18:15 GMT

Sorry, but i don't see any wsdl in the package … Could you provide the web service wsdl ?

BR,
Atif

Re: Error deploying BPMN20 containing a Web Service Task

ct1 — Thu, 19 Jan 2012 20:33:26 GMT

I am sorry, I did not think to put the WSDL in the package since the problem seemed to be with deploying the BPMN20 process (that is, in parsing the BPMN20 elements during the deploy) rather than with calling the Web Service.

If you need anything else, I will be glad to provide what I can.

Thank you.

Here is the WSDL.



<?xml version="1.0" encoding="UTF-8" ?>
<wsdl:definitions xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
   xmlns:ns1="http://org.apache.axis2/xsd" xmlns:ns="http://argo.com"
   xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/"
   xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/"
   xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/"
   targetNamespace="http://argo.com">
   <wsdl:documentation>Please Type your service description here
   </wsdl:documentation>
   <wsdl:types>
      <xs:schema attributeFormDefault="qualified"
         elementFormDefault="qualified" targetNamespace="http://argo.com">
         <xs:element name="CheckPreviousEmployment">
            <xs:complexType>
               <xs:sequence>
                  <xs:element minOccurs="0" name="applicantName"
                     nillable="true" type="xs:string" />
               </xs:sequence>
            </xs:complexType>
         </xs:element>
         <xs:element name="CheckPreviousEmploymentResponse">
            <xs:complexType>
               <xs:sequence>
                  <xs:element minOccurs="0" name="return" nillable="true"
                     type="xs:string" />
               </xs:sequence>
            </xs:complexType>
         </xs:element>
      </xs:schema>
   </wsdl:types>
   <wsdl:message name="CheckPreviousEmploymentRequest">
      <wsdl:smileytongue:art name="parameters" element="ns:CheckPreviousEmployment" />
   </wsdl:message>
   <wsdl:message name="CheckPreviousEmploymentResponse">
      <wsdl:smileytongue:art name="parameters" element="ns:CheckPreviousEmploymentResponse" />
   </wsdl:message>
   <wsdl:smileytongue:ortType name="PreviousEmploymentPortType">
      <wsdl:smileysurprised:peration name="CheckPreviousEmployment">
         <wsdl:input message="ns:CheckPreviousEmploymentRequest"
            wsaw:Action="urn:CheckPreviousEmployment" />
         <wsdl:smileysurprised:utput message="ns:CheckPreviousEmploymentResponse"
            wsaw:Action="urn:CheckPreviousEmploymentResponse" />
      </wsdl:smileysurprised:peration>
   </wsdl:smileytongue:ortType>
   <wsdl:binding name="PreviousEmploymentSoap11Binding" type="ns:smileytongue:reviousEmploymentPortType">
      <soap:binding transport="http://schemas.xmlsoap.org/soap/http"
         style="document" />
      <wsdl:smileysurprised:peration name="CheckPreviousEmployment">
         <soap:smileysurprised:peration soapAction="urn:CheckPreviousEmployment"
            style="document" />
         <wsdl:input>
            <soap:body use="literal" />
         </wsdl:input>
         <wsdl:smileysurprised:utput>
            <soap:body use="literal" />
         </wsdl:smileysurprised:utput>
      </wsdl:smileysurprised:peration>
   </wsdl:binding>
   <wsdl:binding name="PreviousEmploymentSoap12Binding" type="ns:smileytongue:reviousEmploymentPortType">
      <soap12:binding transport="http://schemas.xmlsoap.org/soap/http"
         style="document" />
      <wsdl:smileysurprised:peration name="CheckPreviousEmployment">
         <soap12:smileysurprised:peration soapAction="urn:CheckPreviousEmployment"
            style="document" />
         <wsdl:input>
            <soap12:body use="literal" />
         </wsdl:input>
         <wsdl:smileysurprised:utput>
            <soap12:body use="literal" />
         </wsdl:smileysurprised:utput>
      </wsdl:smileysurprised:peration>
   </wsdl:binding>
   <wsdl:binding name="PreviousEmploymentHttpBinding" type="ns:smileytongue:reviousEmploymentPortType">
      <http:binding verb="POST" />
      <wsdl:smileysurprised:peration name="CheckPreviousEmployment">
         <http:smileysurprised:peration location="CheckPreviousEmployment" />
         <wsdl:input>
            <mime:content type="text/xml" part="parameters" />
         </wsdl:input>
         <wsdl:smileysurprised:utput>
            <mime:content type="text/xml" part="parameters" />
         </wsdl:smileysurprised:utput>
      </wsdl:smileysurprised:peration>
   </wsdl:binding>
   <wsdl:service name="PreviousEmployment">
      <wsdl:smileytongue:ort name="PreviousEmploymentHttpSoap11Endpoint"
         binding="ns:smileytongue:reviousEmploymentSoap11Binding">
         <soap:address
            location="http://localhost:9090/PrevEmploymentCheckService/services/PreviousEmployment.PreviousEmploymentHttpSoap11Endpoint/" />
      </wsdl:smileytongue:ort>
      <wsdl:smileytongue:ort name="PreviousEmploymentHttpSoap12Endpoint"
         binding="ns:smileytongue:reviousEmploymentSoap12Binding">
         <soap12:address
            location="http://localhost:9090/PrevEmploymentCheckService/services/PreviousEmployment.PreviousEmploymentHttpSoap12Endpoint/" />
      </wsdl:smileytongue:ort>
      <wsdl:smileytongue:ort name="PreviousEmploymentHttpEndpoint" binding="ns:smileytongue:reviousEmploymentHttpBinding">
         <http:address
            location="http://localhost:9090/PrevEmploymentCheckService/services/PreviousEmployment.PreviousEmploymentHttpEndpoint/" />
      </wsdl:smileytongue:ort>
   </wsdl:service>
</wsdl:definitions>

Re: Error deploying BPMN20 containing a Web Service Task

atifelkhachine — Sat, 21 Jan 2012 11:31:26 GMT

Hi,

I am not sure but i think that the problem's root cause is the use of Axis (could you confirm that you have used Axis to create your web service interface ?)
Could you try to create your web service using only CXF ?

Thanks,
Atif

Re: Error deploying BPMN20 containing a Web Service Task

ct1 — Mon, 23 Jan 2012 14:28:50 GMT

You are correct, I did use Axis2 to create the Web Service.

I was under the impression that it did not matter what tools were used to create a Service as long as it produced WSDL that accruately described it; and, if it did, clients written with any tool could call that Service. Am I mistaken? (After all, as you probably guessed, this is my first exposure to Web Services and my understanding may be quite naïve.)

Another question. Is Activiti Explorer trying to somehow call the Web Service at the time of deployment? This exception is happening when I try to deploy the BPMN20 file using Explorer (or using a test case to deploy).

I will try to recreate the Web Service using only CXF and will let you know the results.

If recreating the Web Service using only CXF gets me around the problem, will that mean that I will only be able to call from Activiti only those Web Services that were created using only CXF?

Thank you again for any suggestions you might make.

Re: Error deploying BPMN20 containing a Web Service Task

atifelkhachine — Mon, 23 Jan 2012 14:55:14 GMT

Hi,

I was under the impression that it did not matter what tools were used to create a Service as long as it produced WSDL that accruately described it; and, if it did, clients written with any tool could call that Service. Am I mistaken? (After all, as you probably guessed, this is my first exposure to Web Services and my understanding may be quite naïve.)

You are right. WSDL is a standard and it should work on what ever implementation that respects the specifications.
It might be a bug in the Activiti implementation using JAXB to do the XML mapping.
Making the same web service using CXF and not Axis was only a suggestion so that we can move forward in our analyses.
Between, i have never worked with Axis and i have never seen this JAXBElement exception …

Another question. Is Activiti Explorer trying to somehow call the Web Service at the time of deployment? This exception is happening when I try to deploy the BPMN20 file using Explorer (or using a test case to deploy).

I think that it is not trying to call the web service, but it is only trying to do the XML mapping from the wsdl … If only an Activiti cxf developer may confirm my supposition ..

If recreating the Web Service using only CXF gets me around the problem, will that mean that I will only be able to call from Activiti only those Web Services that were created using only CXF?

Well, you should be able to call your web service without any problem (if it is the same SOAP version (1.1 /1.2 … ) and is JSR compliant …)

For example : Axis 1.0 is not compatible with 'JSR 222 Java Architecture for XML Binding (JAXB) 2.0'

Best Regards,
Atif

Re: Error deploying BPMN20 containing a Web Service Task

ct1 — Mon, 23 Jan 2012 15:19:58 GMT

Thank you for the explanations. So often, when working with advanced developers like you, they will not take the time to really help, but will be rather curt in their remarks and will leave novices in the undertow of the waves of recent technologies. You have proven to be much better than that.

I will continue trying to recreate the Web Service with CXF only and will let you know the results.

Re: Error deploying BPMN20 containing a Web Service Task

ct1 — Thu, 26 Jan 2012 22:12:47 GMT

I am sorry it took me several days to learn enough about CXF to use it to rebuild my web service. Thank you for your patience.

I managed to have Eclipse create the Web Service using cxf. Then deploy the modified BPMN20.xml file that contained the Web Service Task.

I am, however, not able to start the Web Service Task. I start the process in Explorer, put data in the Start Task form, and then see the exception shown below. Would you please be able to look at my WSDL and BPMN20 files (shown below) to see what I have done wrong?

Before trying to invoke the web service via Activiti, I had Eclipse generate a client that calls the web service successfully. I moved the client to another PC in our network and it still called the web service (running on my desktop) successfully. I do not know if it will help, but I put a copy of the client generated by Eclipse below as well. I also included a copy of the Java class I used to have Eclipse create the web service.

BPMN20.xml file:


<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" 
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 xmlns:activiti="http://activiti.org/bpmn" 
 xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" 
 xmlns:smileysurprised:mgdc="http://www.omg.org/spec/DD/20100524/DC" 
 xmlns:smileysurprised:mgdi="http://www.omg.org/spec/DD/20100524/DI" 
 targetNamespace="http://prevemplsvc.argo.com" 
 xmlns:here="http://prevemplsvc.argo.com"
 >
     <!–  xmlns:here="http://argo.com" –>
     
 <import importType="http://schemas.xmlsoap.org/wsdl/" 
   location="http://lusr1315:9696/PrevEmployCheckWS/services/PreviousEmploymentPort?wsdl" 
   namespace="http://prevemplsvc.argo.com" />
 
 <message id="locatePrevEmplymntInfoMessage"
   itemRef="here:CheckPreviousEmploymentItem" />
 <message id="locatePrevEmplymntInfoResponseMessage"
   itemRef="here:CheckPreviousEmploymentResponseItem" />
   
 <itemDefinition id="CheckPreviousEmploymentItem" 
   structureRef="here:CheckPreviousEmployment" />
 <itemDefinition id="CheckPreviousEmploymentResponseItem"
   structureRef="here:CheckPreviousEmploymentResponse" />

 <interface name ="Find Previous Employment Info"
  implementationRef="here:smileytongue:reviousEmploymentSIE" >
  <operation id="findPrevEmploymentInfoOperation" 
    name="Find Previous Employment Info Operation"
    implementationRef="here:CheckPreviousEmployment" >
   <inMessageRef>
    here:locatePrevEmplymntInfoMessage 
   </inMessageRef>
   <outMessageRef>
    here:locatePrevEmplymntInfoResponseMessage
   </outMessageRef>
  </operation>
 </interface>
 
  <itemDefinition id="candidateName" structureRef="string" />
 <itemDefinition id="arg0" structureRef="string" />
 <itemDefinition id="return" structureRef="string" /> 
 <itemDefinition id="prevEmplInfo" structureRef="string" />
 
 <process id="CheckPrevEmploymentProcess" name="CheckPrevEmploymentProcess">
  <documentation>This is a callable process used to check for previous
   employment of the applicant at our company.</documentation>
  <startEvent id="checkPrevEmplymntStart" name="Check Previous Employment Start">
   <extensionElements>
    <activiti:formProperty id="candidateName"
     name="Name of Candidate" 
     type="string"
     required="true" 
     readable="true" writable="true"></activiti:formProperty>
   </extensionElements>
  </startEvent>
  
  <scriptTask id="logStart" name="Log Process Start"
   scriptFormat="groovy">
  <script><![CDATA[print "CheckPrevEmploymentProcess started with candidate name ${candidateName}.\n"]]></script>
  </scriptTask>
  <serviceTask id="callPrevEmplWebService" name="Call Prev Employment Web Service"
   implementation="##WebService"
   operationRef="here:findPrevEmploymentInfoOperation">
         
   <ioSpecification>
    <dataInput itemSubjectRef="here:CheckPreviousEmploymentItem"
       id="dataInput" />
    <dataOutput 
       itemSubjectRef="here:CheckPreviousEmploymentResponseItem"
       id="dataOutput" />
       
    <inputSet>
     <dataInputRefs>dataInput</dataInputRefs>
    </inputSet>
    <outputSet>
     <dataOutputRefs>dataOutput</dataOutputRefs>
    </outputSet>
   </ioSpecification>
   
   <dataInputAssociation>
    <sourceRef>candidateName</sourceRef>
    <targetRef>arg0</targetRef>
   </dataInputAssociation>
   <dataOutputAssociation>
    <sourceRef>return</sourceRef>
    <targetRef>prevEmplInfo</targetRef>
   </dataOutputAssociation>  
  </serviceTask>
  
  <sequenceFlow id="flow2" name="" sourceRef="callPrevEmplWebService"
   targetRef="logAfterWebSvcCall"></sequenceFlow>
  <scriptTask id="logAfterWebSvcCall" name="Log Prev Emplymnt Info"
   scriptFormat="groovy">
   <script><![CDATA[print "After Call Prev Employment Web Service task, 
       candidateName is ${candidateName}.\n
       And prevEmplInfo is ${prevEmplInfo}.\n"]]></script>
  </scriptTask>
  <endEvent id="checkPrevEmplymntEnd" name="Check Prev Emplymnt End"></endEvent>
  <sequenceFlow id="flow3" name="" sourceRef="logAfterWebSvcCall"
   targetRef="checkPrevEmplymntEnd"></sequenceFlow>
  <sequenceFlow id="flow4" name="" sourceRef="checkPrevEmplymntStart"
   targetRef="logStart"></sequenceFlow>
  <sequenceFlow id="flow5" name="" sourceRef="logStart"
   targetRef="callPrevEmplWebService"></sequenceFlow>
 </process>
 <bpmndi:BPMNDiagram id="BPMNDiagram_CheckPrevEmploymentProcess">
  <bpmndi:BPMNPlane bpmnElement="CheckPrevEmploymentProcess"
   id="BPMNPlane_CheckPrevEmploymentProcess">
   <bpmndi:BPMNShape bpmnElement="checkPrevEmplymntStart"
    id="BPMNShape_checkPrevEmplymntStart">
    <omgdc:Bounds height="35" width="35" x="90" y="98"></omgdc:Bounds>
   </bpmndi:BPMNShape>
   <bpmndi:BPMNShape bpmnElement="callPrevEmplWebService"
    id="BPMNShape_callPrevEmplWebService">
    <omgdc:Bounds height="91" width="105" x="330" y="70"></omgdc:Bounds>
   </bpmndi:BPMNShape>
   <bpmndi:BPMNShape bpmnElement="logAfterWebSvcCall"
    id="BPMNShape_logAfterWebSvcCall">
    <omgdc:Bounds height="55" width="105" x="490" y="88"></omgdc:Bounds>
   </bpmndi:BPMNShape>
   <bpmndi:BPMNShape bpmnElement="checkPrevEmplymntEnd"
    id="BPMNShape_checkPrevEmplymntEnd">
    <omgdc:Bounds height="35" width="35" x="650" y="98"></omgdc:Bounds>
   </bpmndi:BPMNShape>
   <bpmndi:BPMNShape bpmnElement="logStart" id="BPMNShape_logStart">
    <omgdc:Bounds height="55" width="105" x="170" y="88"></omgdc:Bounds>
   </bpmndi:BPMNShape>
   <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
    <omgdi:waypoint x="435" y="115"></omgdi:waypoint>
    <omgdi:waypoint x="490" y="115"></omgdi:waypoint>
   </bpmndi:BPMNEdge>
   <bpmndi:BPMNEdge bpmnElement="flow3" id="BPMNEdge_flow3">
    <omgdi:waypoint x="595" y="115"></omgdi:waypoint>
    <omgdi:waypoint x="650" y="115"></omgdi:waypoint>
   </bpmndi:BPMNEdge>
   <bpmndi:BPMNEdge bpmnElement="flow4" id="BPMNEdge_flow4">
    <omgdi:waypoint x="125" y="115"></omgdi:waypoint>
    <omgdi:waypoint x="170" y="115"></omgdi:waypoint>
   </bpmndi:BPMNEdge>
   <bpmndi:BPMNEdge bpmnElement="flow5" id="BPMNEdge_flow5">
    <omgdi:waypoint x="275" y="115"></omgdi:waypoint>
    <omgdi:waypoint x="330" y="115"></omgdi:waypoint>
   </bpmndi:BPMNEdge>
  </bpmndi:BPMNPlane>
 </bpmndi:BPMNDiagram>
</definitions>

WSDL:


  <?xml version="1.0" encoding="UTF-8" ?> 
- <wsdl:definitions name="PreviousEmploymentService" targetNamespace="http://prevemplsvc.argo.com/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://prevemplsvc.argo.com/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
- <wsdl:types>
- <schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://prevemplsvc.argo.com/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <import namespace="http://prevemplsvc.argo.com/" schemaLocation="http://lusr1315:9696/PrevEmployCheckWS/services/PreviousEmploymentPort?xsd=previousemployment_schema1.xsd" /> 
  </schema>
  </wsdl:types>
- <wsdl:message name="CheckPreviousEmploymentResponse">
  <wsdl:smileytongue:art element="tns:CheckPreviousEmploymentResponse" name="parameters" /> 
  </wsdl:message>
- <wsdl:message name="CheckPreviousEmployment">
  <wsdl:smileytongue:art element="tns:CheckPreviousEmployment" name="parameters" /> 
  </wsdl:message>
- <wsdl:smileytongue:ortType name="PreviousEmploymentSIE">
- <wsdl:smileysurprised:peration name="CheckPreviousEmployment">
  <wsdl:input message="tns:CheckPreviousEmployment" name="CheckPreviousEmployment" /> 
  <wsdl:smileysurprised:utput message="tns:CheckPreviousEmploymentResponse" name="CheckPreviousEmploymentResponse" /> 
  </wsdl:smileysurprised:peration>
  </wsdl:smileytongue:ortType>
- <wsdl:binding name="PreviousEmploymentServiceSoapBinding" type="tns:smileytongue:reviousEmploymentSIE">
  <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http" /> 
- <wsdl:smileysurprised:peration name="CheckPreviousEmployment">
  <soap:smileysurprised:peration soapAction="" style="document" /> 
- <wsdl:input name="CheckPreviousEmployment">
  <soap:body use="literal" /> 
  </wsdl:input>
- <wsdl:smileysurprised:utput name="CheckPreviousEmploymentResponse">
  <soap:body use="literal" /> 
  </wsdl:smileysurprised:utput>
  </wsdl:smileysurprised:peration>
  </wsdl:binding>
- <wsdl:service name="PreviousEmploymentService">
- <wsdl:smileytongue:ort binding="tns:smileytongue:reviousEmploymentServiceSoapBinding" name="PreviousEmploymentPort">
  <soap:address location="http://lusr1315:9696/PrevEmployCheckWS/services/PreviousEmploymentPort" /> 
  </wsdl:smileytongue:ort>
  </wsdl:service>
  </wsdl:definitions>

Exception thrown when trying to run the Web Service Task within the BPMN20 file:


Jan 26, 2012 3:21:23 PM org.activiti.engine.impl.bpmn.deployer.BpmnDeployer deploy
INFO: Processing resource CheckPrevEmploymentProcess.bpmn20.xml
Jan 26, 2012 3:21:23 PM org.activiti.engine.impl.bpmn.parser.BpmnParse parseDefinitionsAttributes
INFO: XMLSchema currently not supported as typeLanguage
Jan 26, 2012 3:21:23 PM org.activiti.engine.impl.bpmn.parser.BpmnParse parseDefinitionsAttributes
INFO: XPath currently not supported as expressionLanguage
Jan 26, 2012 3:21:23 PM org.activiti.engine.impl.bpmn.deployer.BpmnDeployer deploy
INFO: Processing resource ResumeScreeningProcess.png
Jan 26, 2012 3:21:23 PM org.activiti.engine.impl.bpmn.deployer.BpmnDeployer deploy
INFO: Processing resource Application Screening Process.png
CheckPrevEmploymentProcess started with candidate name JohnJones.
Jan 26, 2012 3:30:07 PM org.activiti.engine.impl.webservice.WSOperation safeSend
WARNING: Error calling WS http://prevemplsvc.argo.com:smileytongue:reviousEmploymentService
java.lang.reflect.UndeclaredThrowableException
        at $Proxy33.bind(Unknown Source)
        at org.apache.cxf.endpoint.dynamic.DynamicClientFactory.createClient(DynamicClientFactory.ja
va:286)
        at org.apache.cxf.endpoint.dynamic.DynamicClientFactory.createClient(DynamicClientFactory.ja
va:206)
        at org.apache.cxf.endpoint.dynamic.DynamicClientFactory.createClient(DynamicClientFactory.ja
va:199)
        at org.apache.cxf.endpoint.dynamic.DynamicClientFactory.createClient(DynamicClientFactory.ja
va:154)
        at org.activiti.engine.impl.webservice.CxfWebServiceClient.<init>(CxfWebServiceClient.java:3
0)
        at org.activiti.engine.impl.webservice.CxfWebServiceClientFactory.create(CxfWebServiceClient
Factory.java:27)
        at org.activiti.engine.impl.webservice.WSService.getClient(WSService.java:62)
        at org.activiti.engine.impl.webservice.WSOperation.safeSend(WSOperation.java:75)
        at org.activiti.engine.impl.webservice.WSOperation.sendFor(WSOperation.java:63)
        at org.activiti.engine.impl.bpmn.webservice.Operation.sendMessage(Operation.java:50)
        at org.activiti.engine.impl.bpmn.behavior.WebServiceActivityBehavior.execute(WebServiceActiv
ityBehavior.java:76)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationActivityExecute.execute(AtomicOperati
onActivityExecute.java:44)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerStart.eventNo
tificationsCompleted(AtomicOperationTransitionNotifyListenerStart.java:52)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAt
omicOperation.java:56)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAt
omicOperation.java:49)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionCreateScope.execute(AtomicO
perationTransitionCreateScope.java:49)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerTake.execute(
AtomicOperationTransitionNotifyListenerTake.java:65)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionDestroyScope.execute(Atomic
OperationTransitionDestroyScope.java:115)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerEnd.eventNoti
ficationsCompleted(AtomicOperationTransitionNotifyListenerEnd.java:36)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAt
omicOperation.java:56)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAt
omicOperation.java:49)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.take(ExecutionEntity.java:332
)
        at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performOutgoingBehavior(BpmnA
ctivityBehavior.java:102)
        at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performDefaultOutgoingBehavio
r(BpmnActivityBehavior.java:51)
        at org.activiti.engine.impl.bpmn.behavior.FlowNodeActivityBehavior.leave(FlowNodeActivityBeh
avior.java:44)
        at org.activiti.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.leave(AbstractBpmnAct
ivityBehavior.java:37)
        at org.activiti.engine.impl.bpmn.behavior.ScriptTaskActivityBehavior.execute(ScriptTaskActiv
ityBehavior.java:49)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationActivityExecute.execute(AtomicOperati
onActivityExecute.java:44)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerStart.eventNo
tificationsCompleted(AtomicOperationTransitionNotifyListenerStart.java:52)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAt
omicOperation.java:56)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAt
omicOperation.java:49)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionCreateScope.execute(AtomicO
perationTransitionCreateScope.java:49)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerTake.execute(
AtomicOperationTransitionNotifyListenerTake.java:65)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionDestroyScope.execute(Atomic
OperationTransitionDestroyScope.java:115)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerEnd.eventNoti
ficationsCompleted(AtomicOperationTransitionNotifyListenerEnd.java:36)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAt
omicOperation.java:56)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.take(ExecutionEntity.java:332
)
        at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performOutgoingBehavior(BpmnA
ctivityBehavior.java:102)
        at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performDefaultOutgoingBehavio
r(BpmnActivityBehavior.java:51)
        at org.activiti.engine.impl.bpmn.behavior.FlowNodeActivityBehavior.leave(FlowNodeActivityBeh
avior.java:44)
        at org.activiti.engine.impl.bpmn.behavior.FlowNodeActivityBehavior.execute(FlowNodeActivityB
ehavior.java:36)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationActivityExecute.execute(AtomicOperati
onActivityExecute.java:44)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationProcessStartInitial.eventNotification
sCompleted(AtomicOperationProcessStartInitial.java:44)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAt
omicOperation.java:56)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationProcessStart.eventNotificationsComple
ted(AtomicOperationProcessStart.java:44)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAt
omicOperation.java:56)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:
76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(Executio
nEntity.java:497)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEnt
ity.java:492)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.start(ExecutionEntity.java:28
6)
        at org.activiti.engine.impl.cmd.SubmitStartFormCmd.execute(SubmitStartFormCmd.java:80)
        at org.activiti.engine.impl.cmd.SubmitStartFormCmd.execute(SubmitStartFormCmd.java:35)
        at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java
:24)
        at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInte
rceptor.java:42)
        at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInter
ceptor.java:42)
        at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.j
ava:130)
        at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.jav
a:40)
        at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)
        at org.activiti.engine.impl.FormServiceImpl.submitStartFormData(FormServiceImpl.java:60)
        at org.activiti.explorer.ui.process.ProcessDefinitionDetailPanel$1.handleFormSubmit(ProcessD
efinitionDetailPanel.java:141)
        at org.activiti.explorer.ui.form.FormPropertiesEventListener.componentEvent(FormPropertiesEv
entListener.java:39)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:490)
        at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:164)
        at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1193)
        at org.activiti.explorer.ui.form.FormPropertiesForm.access$000(FormPropertiesForm.java:45)
        at org.activiti.explorer.ui.form.FormPropertiesForm$1.buttonClick(FormPropertiesForm.java:13
9)
        at sun.reflect.GeneratedMethodAccessor139.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:490)
        at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:164)
        at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1193)
        at com.vaadin.ui.Button.fireClick(Button.java:539)
        at com.vaadin.ui.Button.changeVariables(Button.java:206)
        at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariableBurst(AbstractC
ommunicationManager.java:1299)
        at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariables(AbstractCommu
nicationManager.java:1219)
        at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleUidlRequest(AbstractC
ommunicationManager.java:735)
        at com.vaadin.terminal.gwt.server.CommunicationManager.handleUidlRequest(CommunicationManage
r.java:296)
        at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServ
let.java:501)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j
ava:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.ja
va:588)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.cxf.common.util.ReflectionInvokationHandler.invoke(ReflectionInvokationHandler
.java:52)
        … 148 more

Client generated by Eclipse:



package com.argo.prevemplsvc;

 * Please modify this class to meet your needs

import java.io.File;

/**
 * This class was generated by Apache CXF 2.3.8
 * 2012-01-25T13:31:49.701-06:00
 * Generated source version: 2.3.8
 * 
 */
public final class PreviousEmploymentSIE_PreviousEmploymentPort_Client {

    private static final QName SERVICE_NAME = new QName("http://prevemplsvc.argo.com/", "PreviousEmploymentService");

    private PreviousEmploymentSIE_PreviousEmploymentPort_Client() {
    }

    public static void main(String args[]) throws java.lang.Exception {
        URL wsdlURL = PreviousEmploymentService.WSDL_LOCATION;
        if (args.length > 0) { 
            File wsdlFile = new File(args[0]);
            try {
                if (wsdlFile.exists()) {
                    wsdlURL = wsdlFile.toURI().toURL();
                } else {
                    wsdlURL = new URL(args[0]);
                }
            } catch (MalformedURLException e) {
                e.printStackTrace();
            }
        }
      
        PreviousEmploymentService ss = new PreviousEmploymentService(wsdlURL, SERVICE_NAME);
        PreviousEmploymentSIE port = ss.getPreviousEmploymentPort();  
        
        {
        System.out.println("Invoking checkPreviousEmployment…");
//        java.lang.String _checkPreviousEmployment_arg0 = "_checkPreviousEmployment_arg0-436338067";
        java.lang.String _checkPreviousEmployment_arg0 = "ElijahEhud";
        java.lang.String _checkPreviousEmployment__return = port.checkPreviousEmployment(_checkPreviousEmployment_arg0);
        System.out.println("checkPreviousEmployment.result=" + _checkPreviousEmployment__return);


        }

        System.exit(0);
    }

}

Class used by Eclipse to create the Web Service (after Eclipse modified it):


package com.argo.prevemplsvc;

import java.util.Hashtable;

import javax.jws.WebService;
 
@WebService(targetNamespace = "http://prevemplsvc.argo.com/", endpointInterface = "com.argo.prevemplsvc.PreviousEmploymentSIE", portName = "PreviousEmploymentPort", serviceName = "PreviousEmploymentService")
public class PreviousEmployment implements PreviousEmploymentSIE 
{
 Hashtable<String,String> previousEmployees = new Hashtable<String,String>();
 public PreviousEmployment()
 {
  buildHistoryTable();
 }
 public String CheckPreviousEmployment(String applicantName)
 {
  String prevEmploymentInfo = new String();
  
  if(null != applicantName && applicantName.length() > 0)
  {
   if(previousEmployees.containsKey(applicantName))
   {
    prevEmploymentInfo = applicantName 
      + ":  "
      + (String) previousEmployees.get(applicantName)
      + ".";
   }
   else
   {
    prevEmploymentInfo = applicantName
      + ":  "
      + "No previous employment information was found.";
   }
  }
  else
  {
   prevEmploymentInfo = "No Name Supplied:  "
       + "No previous employment information was found.";
  }
  
  return prevEmploymentInfo;
 }
 
 private void buildHistoryTable()
 {
  previousEmployees.put("BarryBlack", 
    "Employed Dec. 2009 - June 2010.  Rehire: Conditional");
  previousEmployees.put("DanDrake", 
    "Employed Mar. 2005 - Sept. 2009.  Rehire:  No");
  previousEmployees.put("FultonFulbright", 
    "Employed Jan. 2007 - Dec. 2010.  Rehire:  Definitely");
  previousEmployees.put("HarveyHammer", 
    "Employed Jan. 2007 - Dec. 2010.  Rehire:  Conditional");
 }
}

Re: Error deploying BPMN20 containing a Web Service Task

ct1 — Fri, 27 Jan 2012 21:01:29 GMT

I apologize for omitting the schema that is imported into the WSDL for the web service I am tryng to call from the BPMN Web Service Task. Without it, you would have a hard time verifying that the process BPMN20 file matched the WSDL.

Thank you for taking the time to look at this.

Here is the schema that is imported:


  <?xml version="1.0" encoding="UTF-8" ?> 
- <xs:schema elementFormDefault="unqualified" targetNamespace="http://prevemplsvc.argo.com/" version="1.0" xmlns:tns="http://prevemplsvc.argo.com/" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="CheckPreviousEmployment" type="tns:CheckPreviousEmployment" /> 
  <xs:element name="CheckPreviousEmploymentResponse" type="tns:CheckPreviousEmploymentResponse" /> 
- <xs:complexType name="CheckPreviousEmployment">
- <xs:sequence>
  <xs:element minOccurs="0" name="applicantName" type="xs:string" /> 
  </xs:sequence>
  </xs:complexType>
- <xs:complexType name="CheckPreviousEmploymentResponse">
- <xs:sequence>
  <xs:element minOccurs="0" name="prevEmplInfo" type="xs:string" /> 
  </xs:sequence>
  </xs:complexType>
  </xs:schema>

Re: Error deploying BPMN20 containing a Web Service Task

ct1 — Mon, 30 Jan 2012 18:20:10 GMT

As you suggested, I recreated the Web Services using only Apache CXF. That seems to have fixed the problem that is the subject of this Post ("Error deploying BPMN20 containing a Web Service Task"). After recreating the Web Service using only Apache CXF, the BPMN20 file deployed in Explorer without throwing an Exception.

For interested readers, in Eclipse (in the Java EE Perspective) you can select the class you want to use as the foundation of a new Web Service, right-click and select "Web Services" and select the "Create Web Service" option. That will bring up the "Web Service" dialog that will allow you to select the Web Service Runtime option for the Service (and for a client). Here you can select Apache CXF.

Thank you for reviewing all the code and stack traces I submitted and for suggesting this solution.

Re: Error deploying BPMN20 containing a Web Service Task

atifelkhachine — Mon, 30 Jan 2012 23:02:47 GMT

Hi,

It seems that you have a problem in your dependencies (please take a look the project .pom to see what i have added as dependencies …)
I have created for you a Maven project with a test case for your process.
I have created a 'Soapui' mock web service using your WSDL.

I have done a successful test :


….
30 janv. 2012 23:49:27 org.springframework.beans.factory.support.DefaultListableBeanFactory registerBeanDefinition
INFO: Overriding bean definition for bean 'org.apache.cxf.transport.http.policy.HTTPClientAssertionBuilder': replacing [Generic bean: class [org.apache.cxf.transport.http.policy.HTTPClientAssertionBuilder]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in class path resource [META-INF/cxf/cxf-extension-http.xml]] with [Generic bean: class [org.apache.cxf.transport.http.policy.HTTPClientAssertionBuilder]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in class path resource [META-INF/cxf/cxf-extension-http.xml]]
30 janv. 2012 23:49:27 org.springframework.beans.factory.support.DefaultListableBeanFactory registerBeanDefinition
INFO: Overriding bean definition for bean 'org.apache.cxf.transport.http.policy.HTTPServerAssertionBuilder': replacing [Generic bean: class [org.apache.cxf.transport.http.policy.HTTPServerAssertionBuilder]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in class path resource [META-INF/cxf/cxf-extension-http.xml]] with [Generic bean: class [org.apache.cxf.transport.http.policy.HTTPServerAssertionBuilder]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in class path resource [META-INF/cxf/cxf-extension-http.xml]]
30 janv. 2012 23:49:27 org.springframework.beans.factory.support.DefaultListableBeanFactory registerBeanDefinition
INFO: Overriding bean definition for bean 'org.apache.cxf.transport.http.policy.NoOpPolicyInterceptorProvider': replacing [Generic bean: class [org.apache.cxf.transport.http.policy.NoOpPolicyInterceptorProvider]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in class path resource [META-INF/cxf/cxf-extension-http.xml]] with [Generic bean: class [org.apache.cxf.transport.http.policy.NoOpPolicyInterceptorProvider]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in class path resource [META-INF/cxf/cxf-extension-http.xml]]
30 janv. 2012 23:49:27 org.springframework.beans.factory.support.DefaultListableBeanFactory registerBeanDefinition
INFO: Overriding bean definition for bean 'org.apache.cxf.transport.http.ClientOnlyHTTPTransportFactory': replacing [Generic bean: class [org.apache.cxf.transport.http.ClientOnlyHTTPTransportFactory]; scope=; abstract=false; lazyInit=true; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in class path resource [META-INF/cxf/cxf-extension-http.xml]] with [Generic bean: class [org.apache.cxf.transport.http.ClientOnlyHTTPTransportFactory]; scope=; abstract=false; lazyInit=true; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in class path resource [META-INF/cxf/cxf-extension-http.xml]]
30 janv. 2012 23:49:27 org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory
INFO: Bean factory for application context [org.apache.cxf.bus.spring.BusApplicationContext@18bd7f1]: org.springframework.beans.factory.support.DefaultListableBeanFactory@e22f2b
30 janv. 2012 23:49:27 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@e22f2b: defining beans [cxf,org.apache.cxf.bus.spring.BusApplicationListener,org.apache.cxf.bus.spring.BusWiringBeanFactoryPostProcessor,org.apache.cxf.bus.spring.Jsr250BeanPostProcessor,org.apache.cxf.bus.spring.BusExtensionPostProcessor,org.apache.cxf.resource.ResourceManager,org.apache.cxf.configuration.Configurer,org.apache.cxf.binding.BindingFactoryManager,org.apache.cxf.transport.DestinationFactoryManager,org.apache.cxf.transport.ConduitInitiatorManager,org.apache.cxf.wsdl.WSDLManager,org.apache.cxf.phase.PhaseManager,org.apache.cxf.workqueue.WorkQueueManager,org.apache.cxf.buslifecycle.BusLifeCycleManager,org.apache.cxf.endpoint.ServerRegistry,org.apache.cxf.endpoint.ServerLifeCycleManager,org.apache.cxf.endpoint.ClientLifeCycleManager,org.apache.cxf.transports.http.QueryHandlerRegistry,org.apache.cxf.endpoint.EndpointResolverRegistry,org.apache.cxf.headers.HeaderManager,org.apache.cxf.catalog.OASISCatalogManager,org.apache.cxf.endpoint.ServiceContractResolverRegistry,org.apache.cxf.jaxws.context.WebServiceContextResourceResolver,org.apache.cxf.jaxws.context.WebServiceContextImpl,org.apache.cxf.binding.soap.SoapBindingFactory,org.apache.cxf.binding.soap.SoapTransportFactory,org.apache.cxf.binding.soap.customEditorConfigurer,org.apache.cxf.binding.xml.XMLBindingFactory,org.apache.cxf.ws.addressing.policy.AddressingAssertionBuilder,org.apache.cxf.ws.addressing.policy.AddressingPolicyInterceptorProvider,org.apache.cxf.ws.addressing.policy.UsingAddressingAssertionBuilder,org.apache.cxf.transport.http.policy.HTTPClientAssertionBuilder,org.apache.cxf.transport.http.policy.HTTPServerAssertionBuilder,org.apache.cxf.transport.http.policy.NoOpPolicyInterceptorProvider,org.apache.cxf.transport.http.ClientOnlyHTTPTransportFactory,org.apache.cxf.transport.http_jetty.JettyHTTPTransportFactory]; root of factory hierarchy
[b]CheckPrevEmploymentProcess started with candidate name toto.[/b]
30 janv. 2012 23:49:29 org.apache.cxf.jaxb.JAXBUtils logGeneratedClassNames
INFO: Created classes: com.argo.prevemplsvc.CheckPreviousEmployment, com.argo.prevemplsvc.CheckPreviousEmploymentResponse, com.argo.prevemplsvc.ObjectFactory
[b]After Call Prev Employment Web Service task, candidateName is toto.[/b]
[b]And prevEmplInfo is tutu.[/b]
[b]id 5 CheckPrevEmploymentProcess:1:4[/b]

Please import the attached project to your favorite IDE and don't forget to add Maven nature …

Best regards,
Atif

Re: Error deploying BPMN20 containing a Web Service Task

ct1 — Thu, 02 Feb 2012 21:52:01 GMT

I really do thank you for your effort to help me.

I created a new folder, brought up Eclipse, and pointed Eclipse to the new, empty folder as its workspace. Then I unzipped the file you attached into another folder. Then I imported "Existing Projects into Workspace" pointing to the project that resulted from the unzip process. I selected to copy the project into the workspace and watched as Maven built the project. Then I modified the WSDL URL to point to the Web Service on my workstation, saved the BPMN20.xml file, selected "Create deployment artifacts…" (Which worked this time, for which I thank you.), and uploaded the .bar file into Explorer. (I had to make one other change to the BPMN20 file because the one in the zip file used one variable name for the targetRef of the dataOutputAssociation - "prevEmplInfo" - and another variable name -"prevEmploymentInfo" - in the script task that is supposed to report what the value of that variable is. I changed "prevEmplInfo" to "prevEmploymentInfo" in all places.)

I started the process, entered the candidate name on the start form, and clicked the Start process button. The request to the Web Service (shown below) was generated, the response from the Web Service (shown below) was generated. However, the "targetRef" of the "dataOutputAssociation", "prevEmploymentInfo", did not contain the value of the output message, "return", from the Web Service. The log entries shown below show what the process variables of the BPMN20 process contained.

I was expecting to see the string contained between the <return> and the </return> in the process variable "prevEmploymentInfo".

This is the requst to the Web Service recorded as I monitored the Web Service. It shows the value of arg0 comming from the BPMN20 proecss to be "HubertHarms", which is correct.


————————————–
Feb 2, 2012 2:59:04 PM org.apache.cxf.interceptor.AbstractLoggingInterceptor log
INFO: Inbound Message
—————————-
ID: 15
Address: http://lusr1315:9696/PrevEmployCheckWS/services/PreviousEmploymentPort
Encoding: UTF-8
Http-Method: POST
Content-Type: text/xml; charset=UTF-8
Headers: {Accept=[*/*], cache-control=[no-cache], connection=[keep-alive], Content-Length=[233], con
tent-type=[text/xml; charset=UTF-8], host=[lusr1315:9696], pragma=[no-cache], SOAPAction=[""], user-
agent=[Apache CXF 2.3.1]}
Payload: <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><ns2:Check
PreviousEmployment xmlns:ns2="http://prevemplsvc.argo.com/"><arg0>HubertHarms</arg0></ns2:CheckPrevi
ousEmployment></soap:Body></soap:Envelope>
————————————–

The response generated by the Web Service (please note the value of "return" which was supposed to be put into the process variable called prevEmploymentInfo):


————————————–
Feb 2, 2012 2:59:04 PM org.apache.cxf.interceptor.AbstractLoggingInterceptor log
INFO: Outbound Message
—————————
ID: 15
Encoding: UTF-8
Content-Type: text/xml
Headers: {}
Payload: <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><ns2:Check
PreviousEmploymentResponse xmlns:ns2="http://prevemplsvc.argo.com/"><return>HubertHarms:  No previou
s employment information was found.</return></ns2:CheckPreviousEmploymentResponse></soap:Body></soap
:Envelope>
————————————–

The log entries created by the script tasks within the BPMN20 process:


Feb 2, 2012 2:57:50 PM org.activiti.engine.impl.bpmn.deployer.BpmnDeployer deploy
INFO: Processing resource CheckPrevEmploymentProcess.bpmn20.xml
Feb 2, 2012 2:57:50 PM org.activiti.engine.impl.bpmn.parser.BpmnParse parseDefinitionsAttributes
INFO: XMLSchema currently not supported as typeLanguage
Feb 2, 2012 2:57:50 PM org.activiti.engine.impl.bpmn.parser.BpmnParse parseDefinitionsAttributes
INFO: XPath currently not supported as expressionLanguage
CheckPrevEmploymentProcess started with candidate name HubertHarms.
Feb 2, 2012 2:59:03 PM org.apache.cxf.jaxb.JAXBUtils logGeneratedClassNames
INFO: Created classes: com.argo.prevemplsvc.CheckPreviousEmployment, com.argo.prevemplsvc.CheckPrevi
ousEmploymentResponse, com.argo.prevemplsvc.ObjectFactory
After Call Prev Employment Web Service task, candidateName is HubertHarms.
And prevEmploymentInfo is null.

As an aside, while you were working on this, I replaced the jar files in the activiti-explorer/WEB-INF/lib directory and in the activiti-rest/WEB-INF/lib directory with the jar files I found in the activiti-5.8/setup/build/webapps/activiti-rest.war/WEB-INF/lib and in the activiti-5.8/setup/build/webapps/activiti-explorer.war/WEB-INF/lib. Then a co-worker showed me how to have Maven clean and rebuild a project outside of Eclipse. Once that was done, I was able to create the deployment artifacts. However, when I tried to execute the process in Explorer, I had the same problem I am having when I run the process you sent.

Re: Error deploying BPMN20 containing a Web Service Task

ct1 — Mon, 06 Feb 2012 22:19:01 GMT

I have been working with the example process you send last Friday. I was puzzled by the console output in your reply showing a value for the variable "prevEmplInfo" since that was not the value declared as the "targetRef" of the "dataOutputAssociation" in the BPMN20 file.

Then I realized that the output to the console came from your running the test case. It appears that the test case ("ProcessTestCheckPrevEmploymentProcess.java") added a variable called "prevEmplInfo" with a value of "tutu" to the HashMap used as input to the process with the key of "CheckPrevEmploymentProcess". The process seems to have read the variable from the HashMap and displayed its value on the console when you ran the test case. The test case basically seems no different than just initializing the variable inside the BPMN20 process itself and then displaying its value. That seems fundamentally different from getting a value from an external process (the web service) and then setting the variable to that value. It is that disconnect - not being able to find in the "targetRef" (in this case the variable called "prevEmploymentInfo") the value the web service monitor says was put into the "sourceRef" (in this case the variable called "return") - that is stumping me.

I guess I should ask a question if I want a reply. I know I have already asked a lot of you. Do you think you might try the test again? This time, set only the "candidateName" variable, let the process instance of "CheckPrevEmploymentProcess" call the mock web service, and then display the value the mock web service puts into the "return" variable and the value the BPMN20 process puts into the "prevEmploymentInfo" variable.

Thank you very much for your help.

Re: Error deploying BPMN20 containing a Web Service Task

ct1 — Wed, 08 Feb 2012 19:45:15 GMT

While reading about using cxf to generate Web Services and clients, I read somewhere that generated method names and variable names are prepended with the "_" character. I then looked in the client code generated by Eclipse for the Web Service I am trying to use and found ("checkPreviousEmployment.result=" + _checkPreviousEmployment__return"). As it turns out, the "__" before "return" is really two "_" characters, which means that the variable name is "_return". I changed my BPMN20.xml file targetRef to be "_return" rather than "return". Doing that made the data output by the Web Service available in the process variable I was trying to use.

Thank you for all the time and effort you put in to help with this.

If there is any way to indicate that this is no longer a problem, please do so.

Thank you again.