[jboss-user] [jBPM] - java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper

[TC ONG]

TC ONG [https://community.jboss.org/people/devilkazuya99] created the discussion

"java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper"

To view the discussion, visit: https://community.jboss.org/message/740612#740612

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               String respond = "SOME_VALUE";
          Map result = new HashMap();
          result.put("answer", respond);
          ContentData contentData = null;
          ByteArrayOutputStream bos = new ByteArrayOutputStream();
          ObjectOutputStream out;
          try {
               out = new ObjectOutputStream(bos);
               out.writeObject(result);
               out.close();
               contentData = new ContentData();
               contentData.setContent(bos.toByteArray());
               contentData.setAccessType(AccessType.Inline);
          } catch (IOException ioe) {
               ioe.printStackTrace();
          }
          
          localTaskService.complete(taskId, userName, contentData);

My process has a sequence of human tasks.
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
Any idea why it suddently doesn't work?
Full stack trace:
Application Message - java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper
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.SyncWSHumanTaskHandler$TaskCompletedHandler.handleCompletedTask(SyncWSHumanTaskHandler.java:354)
     at org.jbpm.process.workitem.wsht.SyncWSHumanTaskHandler$TaskCompletedHandler.execute(SyncWSHumanTaskHandler.java:329)
     at org.jbpm.task.service.local.LocalTaskService$SimpleEventTransport.trigger(LocalTaskService.java:307)
     at org.jbpm.task.event.MessagingTaskEventListener.taskCompleted(MessagingTaskEventListener.java:73)
     at org.jbpm.task.event.TaskEventSupport.fireTaskCompleted(TaskEventSupport.java:46)
     at org.jbpm.task.service.TaskServiceSession.postTaskCompleteOperation(TaskServiceSession.java:502)
     at org.jbpm.task.service.TaskServiceSession.taskOperation(TaskServiceSession.java:468)
     at org.jbpm.task.service.local.LocalTaskService.complete(LocalTaskService.java:80)
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[TC ONG]

TC ONG [https://community.jboss.org/people/devilkazuya99] created the discussion

"Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper"

To view the discussion, visit: https://community.jboss.org/message/740634#740634

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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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[Mauricio Salatino]

Mauricio Salatino [https://community.jboss.org/people/salaboy21] created the discussion

"Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper"

To view the discussion, visit: https://community.jboss.org/message/740671#740671

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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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[Mauricio Salatino]

Mauricio Salatino [https://community.jboss.org/people/salaboy21] created the discussion

"Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper"

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Please mark this question as answered
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[TC ONG]

TC ONG [https://community.jboss.org/people/devilkazuya99] created the discussion

"Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper"

To view the discussion, visit: https://community.jboss.org/message/740674#740674

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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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[Mauricio Salatino]

Mauricio Salatino [https://community.jboss.org/people/salaboy21] created the discussion

"Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper"

To view the discussion, visit: https://community.jboss.org/message/740675#740675

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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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[TC ONG]

TC ONG [https://community.jboss.org/people/devilkazuya99] created the discussion

"Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper"

To view the discussion, visit: https://community.jboss.org/message/741139#741139

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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) :p
Any idea when the next release will be?
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[kifayath khan]

kifayath khan [https://community.jboss.org/people/kifayath] created the discussion

"Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper"

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I am also getting same error , i am putting my code and error. Please help me

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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[Alessandro Dionisi]

Alessandro Dionisi [https://community.jboss.org/people/cecchisandrone] created the discussion

"Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper"

To view the discussion, visit: https://community.jboss.org/message/758833#758833

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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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[Ouadi BEL]

Ouadi BEL [https://community.jboss.org/people/ouadi_dev] created the discussion

"Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper"

To view the discussion, visit: https://community.jboss.org/message/805277#805277

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Please How do you solve this problem ?
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[TC ONG]

TC ONG [https://community.jboss.org/people/devilkazuya99] created the discussion

"Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper"

To view the discussion, visit: https://community.jboss.org/message/806689#806689

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It finally works on jBPM 5.4.0 final. I posted an example on https://community.jboss.org/docs/DOC-48556 here. Hope it helps.
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[Ouadi BEL]

Ouadi BEL [https://community.jboss.org/people/ouadi_dev] created the discussion

"Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper"

To view the discussion, visit: https://community.jboss.org/message/805270#805270

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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 http://docs.oracle.com/javase/6/docs/api/java/io/OptionalDataException.html

Thanks for helps.
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[Jiri Svitak]

Jiri Svitak [https://community.jboss.org/people/jsvitak] created the discussion

"Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper"

To view the discussion, visit: https://community.jboss.org/message/744805#744805

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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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TC ONG [https://community.jboss.org/people/devilkazuya99] created the discussion

"Re: java.lang.String cannot be cast to org.jbpm.task.utils.MarshalledContentWrapper"

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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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