Activiti-explorer runs return error!

fate-testarossa — Wed, 11 Feb 2015 08:09:20 GMT

after i deploy the activiti-explorer into tomcat,i startup tomcat and click "http://localhost:8080/activiti-explorer" in IE 11.The user login page is correct,but when i logged in and click any one of the first three button,which are "tasks,process,diagram",it will return an internal error.And in th

Re: Activiti-explorer runs return error!

jbarrez — Wed, 18 Feb 2015 15:55:20 GMT

> java.lang.NumberFormatException: For input string: "486.9599914550781"

That string is coming from somewhere, and it's not Activiti itself. Any idea where this might come from?

Re: Activiti-explorer runs return error!

bmruter — Fri, 06 Mar 2015 16:33:10 GMT

I am seeing the exact same error FF Chrome both work great, but when I open a task in IE11 I get the following…

Mar 6, 2015 10:29:36 AM com.vaadin.Application terminalError
SEVERE: Terminal error:
Throwable occurred: java.lang.NumberFormatException: For input string: "129.3300018310547"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:59)
at java.lang.Integer.parseInt(Integer.java:469)
at java.lang.Integer.parseInt(Integer.java:510)
at com.vaadin.terminal.gwt.client.MouseEventDetails.deSerialize(MouseEventDetails.java:123)
at com.vaadin.ui.Button.changeVariables(Button.java:223)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.changeVariables(AbstractCommunicationManager.java:1460)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariableBurst(AbstractCommunicationManager.java:1404)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariables(AbstractCommunicationManager.java:1329)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleUidlRequest(AbstractCommunicationManager.java:761)
at com.vaadin.terminal.gwt.server.CommunicationManager.handleUidlRequest(CommunicationManager.java:325)
at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:501)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.activiti.explorer.filter.ExplorerFilter.doFilter(ExplorerFilter.java:42)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1074)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:897)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:919)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:738)
Mar 6, 2015 10:29:36 AM com.vaadin.Application terminalError
SEVERE: Terminal error:
Throwable occurred: java.lang.NullPointerException
at org.activiti.explorer.ExplorerApp.terminalError(ExplorerApp.java:246)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleChangeVariablesError(AbstractCommunicationManager.java:1564)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariableBurst(AbstractCommunicationManager.java:1425)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariables(AbstractCommunicationManager.java:1329)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleUidlRequest(AbstractCommunicationManager.java:761)
at com.vaadin.terminal.gwt.server.CommunicationManager.handleUidlRequest(CommunicationManager.java:325)
at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:501)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.activiti.explorer.filter.ExplorerFilter.doFilter(ExplorerFilter.java:42)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1074)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:897)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:919)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:738)

Re: Activiti-explorer runs return error!

jbarrez — Tue, 10 Mar 2015 12:24:46 GMT

Hmmm okay. How can I reproduce it? Simply open *any* task?

Re: Activiti-explorer runs return error!

aimingxu — Wed, 05 Aug 2015 18:39:03 GMT

I am having exactly the same error on IE11. Chrome works fine. Does anyone know the solution?

Re: Activiti-explorer runs return error!

andrealuciano71 — Tue, 31 May 2016 21:09:01 GMT

Well, IE 11 doesn't get along well with Vaadin 6.
A possible solution is to set a servlet filter in the web.xml file to add a header X-UA-Compatible to the http response.
An alternative remedy would be to upgrage Vaadin to 6.8 version according to this post https://dev.vaadin.com/ticket/12635.

Re: Activiti-explorer runs return error!

trevorn — Fri, 08 Jul 2016 13:25:53 GMT

I think this is a jar version issue - taking the hint from the poster I fixed this problem for myself by downloading a later version of the vaadin jar file.

To reproduce:
Environement:
Windows 7 x64 pro
Java 7 update 71
Tomcat 7.0.70, windows service install with a modified catalina-base
IE11.

As others have suggested I think the IE11 bit is critical, the rest doesn't matter.

Follow the quick start instructions using activiti-5.21.0
Open the start URL and log in as kermit. The screen is fairly empty and if you click the Processes button you get the Internal Error and stack trace as reported.
Go to vaadin.com and download vaadin-6.8.17.jar. Replace the 6.8.8 version in webapps\activiti-explorer\WEB-INF\lib with the new one.
Restart Tomcat and the error goes away.

What I do not know, and would like advice from the Activiti team on, is whether this update is likely to give other problems. As a general principle I'm not too keen on poking around in the internals of somebody elses product like this.

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