topic Re: Exception while initializing process engine Can't debug in Alfresco Archive

Exception while initializing process engine Can't debug

skougiou — Tue, 15 Feb 2011 11:43:24 GMT

Hello,I am trying to initialize the activiti engine through a jsp scriptlet and I keep receiving this error from the console :INFO: Exception while initializing process engine rg/springframework/beans/factory/support/BeanDefinitionRegistrywhen I try to debug I manage to dig until the following cal

Re: Exception while initializing process engine Can't debug

frederikherema1 — Tue, 15 Feb 2011 12:09:16 GMT

How are you initializing your process-engine? Are you using the ProcessEngines.getEngine()? If so, you could check out the getProcessEngineInfos(), this contains an engine-info with the full stack-trace of the exception.

Anyway, the message of the exception says "org/springframework/beans/factory/support/BeanDefinitionRegistry" -> possibly a ClassNotFound or NoClassDef? Is spring-beans on your classpath?

Re: Exception while initializing process engine Can't debug

skougiou — Tue, 15 Feb 2011 12:37:03 GMT

Hello,

For the engine initialization I use this call -> ProcessEngine processEng = ProcessEngines.getDefaultProcessEngine();
The correct call is like this? –> getProcessEngineInfos("processEng") ; ? if it is, it returns null.
In the build path I have this one, spring-beans-3.0.0.RELEASE.jar

( why can't I go step by step this code segment? it is the first time I encounter something like this :shock: )

Thanks for the quick reply

Re: Exception while initializing process engine Can't debug

frederikherema1 — Tue, 15 Feb 2011 12:41:46 GMT

You should use the list of Info's… Since you're process-engine hasn't been initialized, it won't have the correct name, so getProcessEngineInfo("default") won't work, use:


public static List<ProcessEngineInfo> getProcessEngineInfos()

Should be one ProcessEngineInfo, containing the full stacktrace

Re: Exception while initializing process engine Can't debug

skougiou — Tue, 15 Feb 2011 13:52:56 GMT

ok I managed to extract the exception and I pasted it below. I have already included the spring jars…is there something that I miss? I can't understand

java.lang.NoClassDefFoundError: org/springframework/beans/factory/support/BeanDefinitionRegistry at org.activiti.engine.ProcessEngines.buildProcessEngine(ProcessEngines.java:152) at org.activiti.engine.ProcessEngines.initProcessEnginFromResource(ProcessEngines.java:126) at org.activiti.engine.ProcessEngines.init(ProcessEngines.java:85) at org.activiti.engine.ProcessEngines.getProcessEngine(ProcessEngines.java:183) at org.activiti.engine.ProcessEngines.getDefaultProcessEngine(ProcessEngines.java:176) at org.apache.jsp.testBPM_jsp._jspService(testBPM_jsp.java:86) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java: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:857) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.ClassNotFoundException: org.springframework.beans.factory.support.BeanDefinitionRegistry at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) … 24 more

Re: Exception while initializing process engine Can't debug

frederikherema1 — Tue, 15 Feb 2011 14:02:14 GMT

Hi,

Seems like the class (BeanDefinitionRegistry) was found on the classpath, but an error occurred while loading. Probably a class referenced from 'BeanDefinitionRegistry' is not present on the classpath. The only obvious non-spring-beans dependency I see in that class is: org.springframework.core.AliasRegistry.

Do you have the spring-core on your classpath as well?

Re: Exception while initializing process engine Can't debug

skougiou — Tue, 15 Feb 2011 14:39:52 GMT

well yes…unfortunately I do have org.springframework.core.AliasRegistry in my classpath. The whole package is.. I also changed from spring-core-3.0.0.RELEASE.jar to spring-core-3.0.3.RELEASE.jar but no luck.

Re: Exception while initializing process engine Can't debug

tombaeyens — Wed, 16 Feb 2011 12:16:52 GMT

NoClassDefFoundError means that BeanDefinitionRegistry imports can't be found.
Try using all the spring libs as they are in the workspace/activiti-engine-examples/libs-runtime

Re: Exception while initializing process engine Can't debug

skougiou — Thu, 17 Feb 2011 08:50:14 GMT

Hello,

I have taken all the libs from workspace/activiti-engine-examples/libs-runtime the problem still persists. I tried to add the jars as external to the build path and still the same. I also downloaded the spring framework 3.0.5 and the problem wasn't solved. The next thing I thought was that the class file was not inside the jar…Double checked and it is there. Any other ideas? I lastly searched for a conflicting jar inside the build path but that wasn't the case.

Thank you for your time, this thing is starting to wind me up

Re: Exception while initializing process engine Can't debug

skougiou — Thu, 17 Feb 2011 10:31:08 GMT

Hello,

I have solved the problem eventually. The solution was that I took only the runtime-libs and put them in the build path. Everything else was deleted. Apparently a .jar was conflicting. When I removed the extra jars everything went fine.

Thank you for your time and help

Re: Exception while initializing process engine Can't debug

kdinuk — Thu, 30 Oct 2014 17:59:47 GMT

I'm getting this same error. I am new to JAVA and programming. I am looking for help, please.
<code>
java.lang.NoClassDefFoundError: org/springframework/core/io/Resource
at org.activiti.engine.ProcessEngineConfiguration.createProcessEngineConfigurationFromResource(ProcessEngineConfiguration.java:212)
at org.activiti.engine.ProcessEngineConfiguration.createProcessEngineConfigurationFromResource(ProcessEngineConfiguration.java:208)
at org.activiti.engine.impl.test.TestHelper.getProcessEngine(TestHelper.java:232)
at org.activiti.engine.test.ActivitiRule.initializeProcessEngine(ActivitiRule.java:237)
at org.activiti.engine.test.ActivitiRule.starting(ActivitiRule.java:205)
at org.activiti.engine.test.ActivitiRule.startingQuietly(ActivitiRule.java:171)
at org.activiti.engine.test.ActivitiRule.access$000(ActivitiRule.java:86)
at org.activiti.engine.test.ActivitiRule$1.evaluate(ActivitiRule.java:124)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: java.lang.ClassNotFoundException: org.springframework.core.io.Resource
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
… 24 more

java.lang.NullPointerException
at org.activiti.designer.test.ProcessTestMyProcess.startProcess(ProcessTestMyProcess.java:27)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.activiti.engine.test.ActivitiRule$1.evaluate(ActivitiRule.java:126)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

java.lang.NullPointerException
at org.activiti.engine.test.ActivitiRule.finished(ActivitiRule.java:273)
at org.activiti.engine.test.ActivitiRule.finishedQuietly(ActivitiRule.java:179)
at org.activiti.engine.test.ActivitiRule.access$400(ActivitiRule.java:86)
at org.activiti.engine.test.ActivitiRule$1.evaluate(ActivitiRule.java:135)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

<code>

Re: Exception while initializing process engine Can't debug

jbarrez — Tue, 18 Nov 2014 19:11:05 GMT

Are you using Maven? If so, the class should be automatically on your classpath.

If you are not using a dependency mgmt system like Maven, you need to make sure the jar with the class is on your classpath. The error tells you that 'org/springframework/core/io/Resource' is *not* on the classpath.