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JBPM Exception when running workflow
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reply from <a href="http://community.jboss.org/people/stevesitton">Stephen Sitton</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/551011#551011">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi Maciej,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks for the response.  Attached is the test (+additional files) which displays the error (org.jbpm.test.CustomTest).  The process definition (process.jpdl.xml) is also in the zip.  This is using jBPM 4.0.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The output from the test is:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><div id="_mcePaste">Processing 2 files in directory "testfiles"</div><div id="_mcePaste">Processing file "file2.zip"</div><div id="_mcePaste">Extracting the file :file2.xml</div><div id="_mcePaste">Extracted the file :file2.xml</div><div id="_mcePaste">Data Convert message - 384</div><div id="_mcePaste">Data Convert message - 385</div><div id="_mcePaste">Data Convert message - 386</div><div id="_mcePaste">Data Convert message - 387</div><div id="_mcePaste">Data Convert message - 388</div><div id="_mcePaste">Data Convert message - 389</div><div id="_mcePaste">Data Convert message - 381</div><div id="_mcePaste">Data Convert message - 382</div><div id="_mcePaste">Extracting the file :file1.xml</div><div id="_mcePaste">Extracted the file :file1.xml</div><div id="_mcePaste">Data Convert message - 112</div><div id="_mcePaste">Data Convert message - 113</div><div id="_mcePaste">Data Convert message - 114</div><div id="_mcePaste">Data Convert message - 111</div><div id="_mcePaste">Data Convert message - 115</div><div id="_mcePaste">Data Convert message - 116</div><div id="_mcePaste">Data Convert message - 117</div><div id="_mcePaste">Data Convert message - 118</div><div id="_mcePaste">Data Convert message - 119</div><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The exception I get is...</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><pre class="jive-pre"><code class="jive-code jive-java">java.lang.NullPointerException
     at org.jbpm.pvm.internal.model.op.ExecuteEventListener.perform(ExecuteEventListener.java:68)
     at org.jbpm.pvm.internal.model.ExecutionImpl.performAtomicOperationSync(ExecutionImpl.java:637)
     at org.jbpm.pvm.internal.model.ExecutionImpl.performAtomicOperation(ExecutionImpl.java:597)
     at org.jbpm.pvm.internal.model.ExecutionImpl.start(ExecutionImpl.java:201)
     at org.jbpm.pvm.internal.cmd.StartProcessInstanceInLatestCmd.execute(StartProcessInstanceInLatestCmd.java:64)
     at org.jbpm.pvm.internal.cmd.StartProcessInstanceInLatestCmd.execute(StartProcessInstanceInLatestCmd.java:37)
     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:54)
     at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55)
     at org.jbpm.pvm.internal.svc.ExecutionServiceImpl.startProcessInstanceByKey(ExecutionServiceImpl.java:66)
     at org.jbpm.test.CustomTest.testProcess(CustomTest.java:24)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at junit.framework.TestCase.runTest(TestCase.java:154)
     at org.jbpm.test.BaseJbpmTestCase.runTest(BaseJbpmTestCase.java:80)
     at junit.framework.TestCase.runBare(TestCase.java:127)
     at junit.framework.TestResult$1.protect(TestResult.java:106)
     at junit.framework.TestResult.runProtected(TestResult.java:124)
     at junit.framework.TestResult.run(TestResult.java:109)
     at junit.framework.TestCase.run(TestCase.java:118)
     at junit.framework.TestSuite.runTest(TestSuite.java:208)
     at junit.framework.TestSuite.run(TestSuite.java:203)
     at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
     at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
 
</code></pre></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Please let me know if there I something I'm doing wrong or if there is a problem in jbpm.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>thanks</p><p>Steve</p></div>
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