[jbpm-issues] [JBoss JIRA] Commented: (JBPM-2619) couldn't deserialize object

[R An (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBPM-2619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12507104#action_12507104 ] 

R An commented on JBPM-2619:
----------------------------

Please ignore the text above - its not a bug.
The problem above was owing to a tomcat instance downloaded from Apache, not the the  one bundled with jbpm 4.3 distribution - the exception was caused by my custom class beng part of my web application WEB-INF/lib - and a jar in the global classpath attempting to deserialize it - j2ee classloader hierarchy does not allow that. Workaround was to copy the custom class to global classpath.


> couldn't deserialize object
> ---------------------------
>
>                 Key: JBPM-2619
>                 URL: https://jira.jboss.org/jira/browse/JBPM-2619
>             Project: jBPM
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Runtime Engine
>    Affects Versions: jBPM 4.1
>         Environment: java 1.6
> Database : db2
>            Reporter: Robin Thomas
>
> I have set a bean object as process instance variable. Say Employee which has getter and setter methods for all the fields.
> Map<String,Object> variables =new HashMap<String,Object>();
> variables.put("employee",new Employee("dfdf","dfsd","","sdfsd"));
> ProcessInstance processInstance = executionService.startProcessInstanceByKey(processDefKey, variables);
> while retriving using the below code :
> TaskService taskService = processEngine.getTaskService();
> 		Set<String> a=taskService.getVariableNames("107");
> taskService.getVariables("107",a );
> gets the following error:
> Exception in thread "main" org.jbpm.api.JbpmException: couldn't deserialize object
> 	at org.jbpm.pvm.internal.type.converter.SerializableToBytesConverter.revert(SerializableToBytesConverter.java:65)
> 	at org.jbpm.pvm.internal.type.Variable.getValue(Variable.java:104)
> 	at org.jbpm.pvm.internal.model.ScopeInstanceImpl.getVariable(ScopeInstanceImpl.java:183)
> 	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.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
> 	at org.jbpm.pvm.internal.model.ExecutionImpl_$$_javassist_4.getVariable(ExecutionImpl_$$_javassist_4.java)
> 	at org.jbpm.pvm.internal.model.ScopeInstanceImpl.getVariable(ScopeInstanceImpl.java:188)
> 	at org.jbpm.pvm.internal.cmd.GetTaskVariablesCmd.execute(GetTaskVariablesCmd.java:53)
> 	at org.jbpm.pvm.internal.cmd.GetTaskVariablesCmd.execute(GetTaskVariablesCmd.java:35)
> 	at org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42)
> 	at org.jbpm.pvm.internal.tx.StandardTransactionInterceptor.execute(StandardTransactionInterceptor.java:54)
> 	at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:46)
> 	at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55)
> 	at org.jbpm.pvm.internal.svc.TaskServiceImpl.getVariables(TaskServiceImpl.java:194)
> 	at com.test.AppClient.main(AppClient.java:89)
> Caused by: java.lang.ClassNotFoundException: com.mbrdi.travelservice.client.TestBO
> 	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)
> 	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
> 	at java.lang.Class.forName0(Native Method)
> 	at java.lang.Class.forName(Unknown Source)
> 	at java.io.ObjectInputStream.resolveClass(Unknown Source)
> 	at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)
> 	at java.io.ObjectInputStream.readClassDesc(Unknown Source)
> 	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
> 	at java.io.ObjectInputStream.readObject0(Unknown Source)
> 	at java.io.ObjectInputStream.readObject(Unknown Source)
> 	at org.jbpm.pvm.internal.type.converter.SerializableToBytesConverter.revert(SerializableToBytesConverter.java:63)

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