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1. Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
devilkazuya99 Jun 8, 2012 4:47 AM (in response to devilkazuya99)I see the code changes in ContentMarshallerHelper.java from GitHub. Please tell me this is some kind of bug that already been fixed in latest code so that I can rest in peace...
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2. Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
salaboy21 Jun 8, 2012 8:14 AM (in response to devilkazuya99)This is already solved in master. and now you don't need to do all that stuff.. just send the object that you have as results that usually will be a Map.
Can you take a look at the method called completeWithResults? Can you test with the latest snapshots to see that it's working?
Cheers
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3. Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
salaboy21 Jun 8, 2012 8:15 AM (in response to salaboy21)Please mark this question as answered
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4. Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
devilkazuya99 Jun 8, 2012 8:20 AM (in response to salaboy21)Yes. I thought that would be the case. I did notice the completeWithResults method. But no time to test it today. Will also try the snapshots as well next week.
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5. Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
salaboy21 Jun 8, 2012 8:22 AM (in response to devilkazuya99)The snapshots will work perfectly.. from now we want the user to avoid doing stuff like:
ByteArrayOutputStream bos = new ByteArrayOutputStream(); ObjectOutputStream out; try { out = new ObjectOutputStream(bos); out.writeObject(result); out.close();
So if you find yourself doing that and you don't find any other simple way just let us know and we will fix it.
Cheers
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6. Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
devilkazuya99 Jun 12, 2012 3:33 AM (in response to salaboy21)I tried the completeWithResults in Drools 5.4 and it is not working. Because I'm not using maven in my project, so I did not try the snapshot. (lazy)
Any idea when the next release will be?
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7. Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
jsvitak Jun 28, 2012 10:38 AM (in response to salaboy21)Hello, I have experienced the same problem "java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper" in jBPM version 5.3.0-SNAPSHOT. That happened in my application which uses jBPM, so it was on client side. I have switched to 5.4.0-SNAPSHOT, but now I experience a different exception. I use HornetQHTWorkItemHandler in my application. My business process contains just a simple human task in which I want to receive just one String value. In jbpm-console I can see my task waiting to be finished. I view it, fill my String value and after I confirm it, my application hangs (no exceptions) and I see the exception below in server.log:
16:10:28,984 WARNING [org.hornetq.core.protocol.core.impl.RemotingConnectionImpl] (hornetq-failure-check-thread) Connection failure has been detected: Did not receive data from /127.0.0.1:44514. It is likely the client has exited or crashed without closing its connection, or the network between the server and client has failed. You also might have configured connection-ttl and client-failure-check-period incorrectly. Please check user manual for more information. The connection will now be closed. [code=3] 16:10:28,984 WARNING [org.hornetq.core.server.impl.ServerSessionImpl] (hornetq-failure-check-thread) Client connection failed, clearing up resources for session 08d8f96b-c12a-11e1-9037-f0def167dbd3 16:10:28,990 WARNING [org.hornetq.core.server.impl.ServerSessionImpl] (hornetq-failure-check-thread) Cleared up resources for session 08d8f96b-c12a-11e1-9037-f0def167dbd3 16:10:44,991 WARNING [org.hornetq.core.protocol.core.impl.RemotingConnectionImpl] (hornetq-failure-check-thread) Connection failure has been detected: Did not receive data from /127.0.0.1:44222. It is likely the client has exited or crashed without closing its connection, or the network between the server and client has failed. You also might have configured connection-ttl and client-failure-check-period incorrectly. Please check user manual for more information. The connection will now be closed. [code=3] 16:10:44,992 WARNING [org.hornetq.core.server.impl.ServerSessionImpl] (hornetq-failure-check-thread) Client connection failed, clearing up resources for session 4d2c6ab8-c126-11e1-9037-f0def167dbd3 16:10:44,992 WARNING [org.hornetq.core.server.impl.ServerSessionImpl] (hornetq-failure-check-thread) Cleared up resources for session 4d2c6ab8-c126-11e1-9037-f0def167dbd3 16:11:54,041 INFO [stdout] (http-localhost-127.0.0.1-8080-3) INFO 28-06 16:11:54,041 (DemoAuthenticator.java:authenticate:54) Demo login for user (null) failed: unsupported username/credential. 16:11:54,042 INFO [stdout] (http-localhost-127.0.0.1-8080-3) WARN 28-06 16:11:54,041 (AuthorizationHeaderChecker.java:loginByHeader:65) Unable to authenticate for rest api: null 16:11:54,047 INFO [stdout] (http-localhost-127.0.0.1-8080-3) INFO 28-06 16:11:54,047 (DemoAuthenticator.java:authenticate:65) Demo login for user (admin) succeeded. 16:11:54,048 INFO [stdout] (http-localhost-127.0.0.1-8080-3) INFO 28-06 16:11:54,047 (AuthorizationHeaderChecker.java:loginByHeader:68) admin authenticated for rest api 16:11:54,054 INFO [stdout] (http-localhost-127.0.0.1-8080-3) INFO 28-06 16:11:54,054 (DemoAuthenticator.java:authenticate:65) Demo login for user (admin) succeeded. 16:11:54,055 INFO [stdout] (http-localhost-127.0.0.1-8080-3) INFO 28-06 16:11:54,055 (AuthorizationHeaderChecker.java:loginByHeader:68) admin authenticated for rest api 16:12:08,650 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) java.io.OptionalDataException 16:12:08,650 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1339) 16:12:08,650 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350) 16:12:08,650 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jbpm.integration.console.forms.TaskFormDispatcher.provideForm(TaskFormDispatcher.java:77) 16:12:08,651 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jbpm.integration.console.forms.FormDispatcherComposite.provideForm(FormDispatcherComposite.java:50) 16:12:08,651 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.bpm.console.server.FormProcessingFacade.provideForm(FormProcessingFacade.java:205) 16:12:08,651 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.bpm.console.server.FormProcessingFacade.renderTaskUI(FormProcessingFacade.java:127) 16:12:08,651 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 16:12:08,651 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 16:12:08,651 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 16:12:08,651 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at java.lang.reflect.Method.invoke(Method.java:597) 16:12:08,651 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:140) 16:12:08,652 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:255) 16:12:08,652 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:220) 16:12:08,652 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:209) 16:12:08,652 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:519) 16:12:08,652 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:496) 16:12:08,652 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) 16:12:08,652 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) 16:12:08,652 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) 16:12:08,653 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) 16:12:08,653 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) 16:12:08,653 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) 16:12:08,653 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) 16:12:08,653 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59) 16:12:08,653 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) 16:12:08,653 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) 16:12:08,653 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) 16:12:08,653 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) 16:12:08,654 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:139) 16:12:08,654 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:480) 16:12:08,654 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.jboss.as.web.NamingValve.invoke(NamingValve.java:57) 16:12:08,654 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:154) 16:12:08,654 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 16:12:08,654 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 16:12:08,654 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) 16:12:08,654 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) 16:12:08,655 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:667) 16:12:08,655 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:952) 16:12:08,655 ERROR [stderr] (http-localhost-127.0.0.1-8080-9) at java.lang.Thread.run(Thread.java:662) 16:12:08,659 INFO [stdout] (http-localhost-127.0.0.1-8080-4) INFO 28-06 16:12:08,658 (DemoAuthenticator.java:authenticate:65) Demo login for user (admin) succeeded. 16:12:08,666 INFO [stdout] (http-localhost-127.0.0.1-8080-3) INFO 28-06 16:12:08,666 (DemoAuthenticator.java:authenticate:65) Demo login for user (admin) succeeded. 16:12:08,699 INFO [stdout] (http-localhost-127.0.0.1-8080-3) INFO 28-06 16:12:08,699 (DemoAuthenticator.java:authenticate:65) Demo login for user (admin) succeeded. 16:12:08,704 INFO [stdout] (http-localhost-127.0.0.1-8080-4) INFO 28-06 16:12:08,704 (DemoAuthenticator.java:authenticate:65) Demo login for user (admin) succeeded. 16:12:08,712 INFO [stdout] (http-localhost-127.0.0.1-8080-4) INFO 28-06 16:12:08,712 (DemoAuthenticator.java:authenticate:65) Demo login for user (admin) succeeded. 16:12:08,731 INFO [stdout] (http-localhost-127.0.0.1-8080-4) INFO 28-06 16:12:08,731 (DemoAuthenticator.java:authenticate:65) Demo login for user (admin) succeeded. 16:12:08,739 INFO [stdout] (http-localhost-127.0.0.1-8080-1) INFO 28-06 16:12:08,738 (DemoAuthenticator.java:authenticate:65) Demo login for user (admin) succeeded. 16:12:08,748 INFO [stdout] (http-localhost-127.0.0.1-8080-13) INFO 28-06 16:12:08,748 (DemoAuthenticator.java:authenticate:65) Demo login for user (admin) succeeded. 16:12:08,749 INFO [stdout] (http-localhost-127.0.0.1-8080-13) INFO 28-06 16:12:08,749 (AuthorizationHeaderChecker.java:loginByHeader:68) admin authenticated for rest api 16:12:08,750 INFO [stdout] (http-localhost-127.0.0.1-8080-13) INFO 28-06 16:12:08,750 (PackageDeploymentServlet.java:execute:143) PackageName: org.jenkinsci.plugins.jbpm 16:12:08,751 INFO [stdout] (http-localhost-127.0.0.1-8080-13) INFO 28-06 16:12:08,750 (PackageDeploymentServlet.java:execute:144) PackageVersion: LATEST 16:12:08,751 INFO [stdout] (http-localhost-127.0.0.1-8080-13) INFO 28-06 16:12:08,751 (PackageDeploymentServlet.java:execute:145) PackageIsLatest: true 16:12:08,751 INFO [stdout] (http-localhost-127.0.0.1-8080-13) INFO 28-06 16:12:08,751 (PackageDeploymentServlet.java:execute:146) PackageIsSource: true
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8. Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
kifayath Aug 31, 2012 10:33 AM (in response to salaboy21)I am also getting same error, i am putting my code and error. Please help me. I am using jbpm 5.3
package com.sample;
import java.util.HashMap;
import java.util.Map;
import org.drools.KnowledgeBase;
import org.drools.builder.KnowledgeBuilder;
import org.drools.builder.KnowledgeBuilderFactory;
import org.drools.builder.ResourceType;
import org.drools.io.ResourceFactory;
import org.drools.logger.KnowledgeRuntimeLogger;
import org.drools.logger.KnowledgeRuntimeLoggerFactory;
import org.drools.runtime.StatefulKnowledgeSession;
import org.jbpm.process.workitem.wsht.HornetQHTWorkItemHandler;
/**
* This is a sample file to launch a process.
*/
public class ProcessTest {
public static final void main(String[] args) {
try {
// load up the knowledge base
KnowledgeBase kbase = readKnowledgeBase();
StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);
KnowledgeRuntimeLogger logger = KnowledgeRuntimeLoggerFactory.newThreadedFileLogger(ksession, "test", 1000);
// start a new process instance
Map<String, Object> params = new HashMap<String, Object>();
params.put("employee", "krisv");
params.put("reason", "Yearly performance evaluation");
ksession.startProcess("com.sample.evaluation", params);
System.out.println("Process started ...");
logger.close();
} catch (Throwable t) {
t.printStackTrace();
}
}
private static KnowledgeBase readKnowledgeBase() throws Exception {
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newClassPathResource("Evaluation.bpmn"), ResourceType.BPMN2);
return kbuilder.newKnowledgeBase();
}
private static StatefulKnowledgeSession createKnowledgeSession(KnowledgeBase kbase) {
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
HornetQHTWorkItemHandler humanTaskHandler = new HornetQHTWorkItemHandler(ksession);
humanTaskHandler.setIpAddress("127.0.0.1");
humanTaskHandler.setPort(5445);
ksession.getWorkItemManager().registerWorkItemHandler("Human Task", humanTaskHandler);
return ksession;
}
}
When I ran the code above, the first task executed fine, but the second task gives me:
java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
Process started ...
Exception in thread "Thread-3" java.lang.ClassCastException: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
at org.jbpm.task.utils.ContentMarshallerHelper.unmarshall(ContentMarshallerHelper.java:157)
at org.jbpm.process.workitem.wsht.GenericHTWorkItemHandler$TaskCompletedHandler.handleCompletedTask(GenericHTWorkItemHandler.java:208)
at org.jbpm.process.workitem.wsht.GenericHTWorkItemHandler$TaskCompletedHandler$1.run(GenericHTWorkItemHandler.java:187)
at java.lang.Thread.run(Thread.java:722)
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9. Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
cecchisandrone Sep 10, 2012 10:36 AM (in response to kifayath)I have the same problem, executing the following code:
Map<String, Object> results = new HashMap<String, Object>();
results.put("outcome", transition);
taskService.completeWithResults(selectedTask.getId(), currentUser, results);
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10. Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
devilkazuya99 Sep 16, 2012 10:44 AM (in response to devilkazuya99)Well, I did download the latest code from github master.
Import into eclipse, compile and export them.
Now I am using jbpm 5.4 snapshot and drools 5.5 snap shot.
I try to run my web application.
Oh! I need to replace all my drools/jbpm jar. ok. replace and run.
Oh! need to replace mvel2 jar too. ok. replace and run.
Oh! need to recompile my drools package. ok, recompile and...
Exception in thread "main" java.lang.ExceptionInInitializerError
at org.jbpm.process.builder.dialect.java.JavaProcessDialect.<clinit>(JavaProcessDialect.java:21)
at org.jbpm.process.builder.dialect.ProcessDialectRegistry.<clinit>(ProcessDialectRegistry.java:15)
at org.jbpm.bpmn2.BPMN2ProcessProviderImpl.<clinit>(BPMN2ProcessProviderImpl.java:31)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.drools.util.ServiceRegistryImpl$ReflectionInstantiator.newInstance(ServiceRegistryImpl.java:214)
at org.drools.util.ServiceRegistryImpl$ReflectionInstantiator.call(ServiceRegistryImpl.java:209)
at org.drools.util.ServiceRegistryImpl.get(ServiceRegistryImpl.java:164)
at org.drools.compiler.BPMN2ProcessFactory.loadProvider(BPMN2ProcessFactory.java:28)
at org.drools.compiler.BPMN2ProcessFactory.getBPMN2ProcessProvider(BPMN2ProcessFactory.java:20)
at org.drools.compiler.BPMN2ProcessFactory.configurePackageBuilder(BPMN2ProcessFactory.java:11)
at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:688)
at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:50)
at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:39)
at com.geneoz.drools.RulesEngineBuilder.buildKB(RulesEngineBuilder.java:127)
at com.geneoz.drools.RulesEngineBuilder.build(RulesEngineBuilder.java:94)
at com.geneoz.drools.RulesEngineBuilder.main(RulesEngineBuilder.java:63)
Caused by: org.mvel2.templates.TemplateError: null input stream
at org.mvel2.templates.util.TemplateTools.readStream(TemplateTools.java:113)
at org.mvel2.templates.TemplateCompiler.compileTemplate(TemplateCompiler.java:414)
at org.mvel2.templates.TemplateCompiler.compileTemplate(TemplateCompiler.java:405)
at org.mvel2.templates.TemplateCompiler.compileTemplate(TemplateCompiler.java:401)
at org.jbpm.process.builder.dialect.java.AbstractJavaProcessBuilder.<clinit>(AbstractJavaProcessBuilder.java:27)
... 17 more
Caused by: java.lang.NullPointerException
at org.mvel2.templates.util.TemplateTools.readStream(TemplateTools.java:103)
... 21 more
I am going deeper and deeper into this shit.
God I had enough of surprices.
I'll get the source for jbpm 5.3 and try to fix it manually. Hope will have some luck.
Jboss!!! WHY you release something like this!! WHYYYYY~~~~~~~!!!!!
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11. Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
devilkazuya99 Sep 18, 2012 12:55 AM (in response to devilkazuya99)I end up fall back to drools 5.3 + jbpm 5.1.2.
When will jbpm 5.3.1+ be released? Any news?
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12. Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
ouadi_dev Mar 28, 2013 7:59 AM (in response to salaboy21)Hi,
I have the same with completeWithResults() method
When I want to complete a human task, this exception is triggered, and I'm not able to solve this situation :
17:17:46,192 ERROR [org.jbpm.process.workitem.wsht.CommandBasedWSHumanTaskHandler] (NioProcessor-6) null: java.io.OptionalDataException at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1358) [rt.jar:1.7.0_15] at java.io.ObjectInputStream.readObject(ObjectInputStream.java:369) [rt.jar:1.7.0_15] at org.jbpm.process.workitem.wsht.CommandBasedWSHumanTaskHandler$GetResultContentResponseHandler.execute(CommandBasedWSHumanTaskHandler.java:330) [jbpm-human-task-mina-5.4.0.Final.jar:5.4.0.Final] at org.jbpm.task.service.TaskClientHandler.messageReceived(TaskClientHandler.java:153) [jbpm-human-task-core-5.4.0.Final.jar:5.4.0.Final] at org.jbpm.task.service.mina.MinaTaskClientHandler.messageReceived(MinaTaskClientHandler.java:47) [jbpm-human-task-mina-5.4.0.Final.jar:5.4.0.Final] at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:716) [mina-core-2.0.1.jar:] at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) [mina-core-2.0.1.jar:] at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46) [mina-core-2.0.1.jar:] at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796) [mina-core-2.0.1.jar:] at org.apache.mina.filter.codec.ProtocolCodecFilter$ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:427) [mina-core-2.0.1.jar:] at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:245) [mina-core-2.0.1.jar:] at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) [mina-core-2.0.1.jar:] at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46) [mina-core-2.0.1.jar:] at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796) [mina-core-2.0.1.jar:] at org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:119) [mina-core-2.0.1.jar:] at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) [mina-core-2.0.1.jar:] at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:426) [mina-core-2.0.1.jar:] at org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:692) [mina-core-2.0.1.jar:] at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:645) [mina-core-2.0.1.jar:] at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:634) [mina-core-2.0.1.jar:] at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$400(AbstractPollingIoProcessor.java:66) [mina-core-2.0.1.jar:] at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1078) [mina-core-2.0.1.jar:] at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64) [mina-core-2.0.1.jar:] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_15] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_15] at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_15]
Here is my compete taskmethod code :
TaskClient client = null; try { client = connectToTaskServer(TASK_SERVER_HOST_IP_ADD, TASK_SERVER_PORT); BlockingTaskOperationResponseHandler responseHandler = new BlockingTaskOperationResponseHandler(); Map<String, Object> taskVariables = new HashMap<String, Object>(); // Currency validation accepted taskVariables.put("o_validationResult", true); client.completeWithResults(aTaskId, aOwnerId, taskVariables, responseHandler); responseHandler.waitTillDone(2000); client.disconnect(); } catch (Exception e) { try { client.disconnect(); } catch (Exception e1) { e1.printStackTrace(); } e.printStackTrace(); logger.error("Unable to completing the Task '" + aTaskId + "' assigned to user '" + aOwnerId + "' : " + e.toString()); throw new TaskManagerException("Unable to completing the Task '" + aTaskId + "' assigned to user '" + aOwnerId + "' : " + e.toString(), e); }
After hard searching in the net, I'm not able to detect where this exception triggered !
Here is exception javadoc :
http://docs.oracle.com/javase/6/docs/api/java/io/OptionalDataException.html
Thanks for helps.
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13. Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
ouadi_dev Mar 28, 2013 8:17 AM (in response to cecchisandrone)Please How do you solve this problem ?
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14. Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
devilkazuya99 Apr 5, 2013 9:13 AM (in response to ouadi_dev)It finally works on jBPM 5.4.0 final. I posted an example on here. Hope it helps.