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    Re: jBPM5 Database Exception
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    created by <a href="https://community.jboss.org/people/pushpak1981">pushpak1981</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/732912#732912">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi <span class="jiveTT-hover-user jive-username-link active_link">Maciej,</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p><span class="jiveTT-hover-user jive-username-link active_link">We are using multiple CommandBasedStatefulSession with Asynchronous Interceptor to execute the processes. Please find below the sample code:</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><blockquote class="jive-quote"><p>@org.junit.Test</p><p>&#160;&#160;&#160; public void testProcessFlow2() throws Exception</p><p>&#160;&#160;&#160; {</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; EntityManagerFactory emf = Persistence.createEntityManagerFactory( "org.jbpm.persistence.jpa" );</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; Environment env = KnowledgeBaseFactory.newEnvironment();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; env.set( EnvironmentName.ENTITY_MANAGER_FACTORY, emf );</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; InitialContext ctx = new InitialContext();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; KnowledgeBuilder builder = KnowledgeBuilderFactory.newKnowledgeBuilder();&#160;&#160;&#160; </p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; builder.add(ResourceFactory.newClassPathResource("HumanTaskTest.bpmn"), ResourceType.BPMN2);&#160;&#160;&#160;&#160;&#160;&#160;&#160; </p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; builder.add(ResourceFactory.newClassPathResource("UnitTest1.bpmn"), ResourceType.BPMN2);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; KnowledgeBase kbase = builder.newKnowledgeBase();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; CommandBasedStatefulKnowledgeSession ksession1 = (CommandBasedStatefulKnowledgeSession)JPAKnowledgeService.newStatefulKnowledgeSession( kbase, null, env );</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; CommandBasedStatefulKnowledgeSession ksession2 = (CommandBasedStatefulKnowledgeSession)JPAKnowledgeService.newStatefulKnowledgeSession( kbase, null, env );</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; JPAWorkingMemoryDbLogger logger = new JPAWorkingMemoryDbLogger(ksession1);</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; JPAWorkingMemoryDbLogger logger2 = new JPAWorkingMemoryDbLogger(ksession2);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; CommandBasedWSHumanTaskHandler task = new CommandBasedWSHumanTaskHandler(ksession1);</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; CommandBasedWSHumanTaskHandler task1 = new CommandBasedWSHumanTaskHandler(ksession2);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; ksession1.getWorkItemManager().registerWorkItemHandler("Human Task", task);</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; ksession2.getWorkItemManager().registerWorkItemHandler("Human Task", task1);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; AsynchronousInterceptor it1 = new AsynchronousInterceptor();</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; AsynchronousInterceptor it2 = new AsynchronousInterceptor();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; StartProcessCommand start = new StartProcessCommand("com.test.humanTask");</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; StartProcessCommand start1 = new StartProcessCommand("com.test.UnitTest1");</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; Map&lt;String,Object&gt; map = new HashMap&lt;String, Object&gt;();&#160;&#160;&#160;&#160;&#160;&#160;&#160; </p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; map.put("i", new Integer(53));</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; start1.setParameters(map);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; ksession1.addInterceptor(it1);</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; ksession2.addInterceptor(it2);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; ksession1.execute(start1);&#160;&#160;&#160;&#160;&#160;&#160;&#160; </p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; ksession2.execute(start1);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>&#160;&#160;&#160;&#160;&#160;&#160;&#160; Thread.currentThread().sleep(20000);</p><p>&#160;&#160;&#160; }</p></blockquote><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>Thanks.</p></div>

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    <p style="margin: 0;">Reply to this message by <a href="https://community.jboss.org/message/732912#732912">going to Community</a></p>
        <p style="margin: 0;">Start a new discussion in jBPM at <a href="https://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2034">Community</a></p>
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