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Cannot insert null into table error while starting a process
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created by <a href="https://community.jboss.org/people/singhjess">jess singh</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/746402#746402">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi all , we are using JBPM 5.3 on Jboss 7.1 with Hibernate 4 and using JBoss's transaciton manager  and seam managed persistence context, when I try to start  a  process I get the following error </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-size: 10pt;">  </span></p><p align="left">08:53:14,876 WARN [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http-localhost-127.0.0.1-8080-1) SQL Error: 23502, SQLState: 23502</p><p align="left">08:53:14,878 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http-localhost-127.0.0.1-8080-1) NULL not allowed for column "INSTANCEID"; SQL statement:</p><p align="left">insert into ProcessInstanceInfo (InstanceId, id, lastModificationDate, lastReadDate, processId, processInstanceByteArray, startDate, state, OPTLOCK) values (null, ?, ?, ?, ?, ?, ?, ?, ?) [23502-161]</p><p><span style="font-size: 10pt;"><p align="left">08:53:14,888 ERROR [org.drools.persistence.SingleSessionCommandService] (http-localhost-127.0.0.1-8080-1) Could not commit session: </p></span><span style="font-size: 10pt;">: </span><span style="text-decoration: underline;"><span style="color: #000080; font-size: 10pt; text-decoration: underline;"><span style="color: #000080; font-size: 10pt; text-decoration: underline;">org.hibernate.exception.ConstraintViolationException</span></span></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><strong style=": ; color: #7f0055; font-size: 10pt;">  </strong></p><p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></p><p><span style="color: #0000c0; font-size: 10pt;"><span style="color: #7f0055; font-size: 10pt;"><p align="left"><strong>public</strong><span style="color: #000000; font-size: 10pt;"> </span><span style="color: #7f0055; font-size: 10pt;"><strong>void</strong></span><p align="left"><div align="left"><span style="color: #000000; font-size: 10pt;">startProcess() {</span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><span style="color: #7f0055; font-size: 10pt;"><strong>try</strong></span><p align="left"><div align="left"><span style="font-size: 10pt;"><strong>{</strong></span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><strong>KnowledgeBase kbase = <em>readKnowledgeBase</em>();</strong></p><p align="left"><strong>TransactionManager manager = (TransactionManager) </strong><strong><span style="color: #7f0055; font-size: 10pt;">new</span><span style="font-size: 10pt;"> InitialContext().lookup(</span><span style="color: #2a00ff; font-size: 10pt;">"java:jboss/TransactionManager"</span></strong><p align="left"><div align="left"><span style="font-size: 10pt;"><strong>);</strong></span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><p align="left"><div align="left"><span style="color: #3f7f5f; font-size: 10pt;"><div align="left"><span style="color: #3f7f5f; font-size: 10pt;"><strong>// create the entity manager factory and register it in the environment</strong></span></div></span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><strong>EntityManagerFactory emf = Persistence.<em>createEntityManagerFactory</em>( </strong><span style="color: #2a00ff; font-size: 10pt;"><strong>"main"</strong></span><p align="left"><div align="left"><span style="font-size: 10pt;"><strong>);</strong></span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><strong>Environment env = KnowledgeBaseFactory.<em>newEnvironment</em>();</strong></p><p align="left"><strong>env.set( EnvironmentName.</strong><em style="color: #0000c0; font-size: 10pt;"><em style="color: #0000c0; font-size: 10pt;"><strong>ENTITY_MANAGER_FACTORY</strong></em></em><p align="left"><div align="left"><span style="font-size: 10pt;"><strong>, emf );</strong></span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><p align="left"><div align="left"><span style="color: #3f7f5f; font-size: 10pt;"><div align="left"><span style="color: #3f7f5f; font-size: 10pt;"><strong>//env.set( EnvironmentName.TRANSACTION, getUserTransaction());</strong></span></div></span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><strong>env.set(EnvironmentName.</strong><em style="color: #0000c0; font-size: 10pt;"><em style="color: #0000c0; font-size: 10pt;"><strong>GLOBALS</strong></em></em><strong><span style="font-size: 10pt;">, </span><span style="color: #7f0055; font-size: 10pt;">new</span></strong><p align="left"><div align="left"> </div></p></p></span><span style="font-size: 10pt;"><p align="left"><strong>MapGlobalResolver());</strong></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><strong>env.set(EnvironmentName.</strong><em style="color: #0000c0; font-size: 10pt;"><em style="color: #0000c0; font-size: 10pt;"><strong>APP_SCOPED_ENTITY_MANAGER</strong></em></em><strong><span style="font-size: 10pt;">, </span><span style="color: #0000c0; font-size: 10pt;">entityManager</span></strong><p align="left"><div align="left"><span style="font-size: 10pt;"><strong>);</strong></span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><strong>env.set(EnvironmentName.</strong><em style="color: #0000c0; font-size: 10pt;"><em style="color: #0000c0; font-size: 10pt;"><strong>TRANSACTION_MANAGER</strong></em></em><p align="left"><div align="left"><span style="font-size: 10pt;"><strong>, manager);</strong></span></div></p></p></span><span style="font-size: 10pt;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><strong>Map<String, Object> params = </strong><span style="color: #7f0055; font-size: 10pt;"><strong>new</strong></span><p align="left"><div align="left"><span style="font-size: 10pt;"><strong>HashMap<String, Object>();</strong></span></div></p></p></span><span style="font-size: 10pt;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><p align="left"><div align="left"><span style="color: #3f7f5f; font-size: 10pt;"><div align="left"><span style="color: #3f7f5f; font-size: 10pt;"><strong>// org.drools.persistence.info.WorkItemInfo <span style="text-decoration: underline;">wi</span>;</strong></span></div></span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><p align="left"><div align="left"><span style="color: #3f7f5f; font-size: 10pt;"><div align="left"><span style="color: #3f7f5f; font-size: 10pt;"><strong>//org.jbpm.task.Comment comment;</strong></span></div></span></div></p></p></span><span style="font-size: 10pt;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><strong>params.put(</strong><strong><span style="color: #2a00ff; font-size: 10pt;">"name"</span><span style="font-size: 10pt;">, </span><span style="color: #2a00ff; font-size: 10pt;">"Arthur"</span></strong><p align="left"><div align="left"><span style="font-size: 10pt;"><strong>);</strong></span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><strong>params.put(</strong><span style="color: #2a00ff; font-size: 10pt;"><strong>"money"</strong></span><p align="left"><div align="left"><span style="font-size: 10pt;"><strong>, 1800);</strong></span></div></p></p></span><span style="font-size: 10pt;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><p align="left"><div align="left"><span style="color: #3f7f5f; font-size: 10pt;"><div align="left"><span style="color: #3f7f5f; font-size: 10pt;"><strong>// create a new knowledge session that uses JPA to store the runtime state</strong></span></div></span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><strong>StatefulKnowledgeSession ksession = JPAKnowledgeService.<em>newStatefulKnowledgeSession</em>( kbase, </strong><span style="color: #7f0055; font-size: 10pt;"><strong>null</strong></span><p align="left"><div align="left"><span style="font-size: 10pt;"><strong>, env );</strong></span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><span style="color: #7f0055; font-size: 10pt;"><strong>int</strong></span><p align="left"><div align="left"><span style="font-size: 10pt;"><strong>sessionId = ksession.getId();</strong></span></div></p></p></span><span style="font-size: 10pt;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><strong>System.</strong><em style="color: #0000c0; font-size: 10pt;"><em style="color: #0000c0; font-size: 10pt;"><strong>out</strong></em></em><p align="left"><div align="left"><span style="font-size: 10pt;"><strong>.println(sessionId);</strong></span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><p align="left"><div align="left"><span style="color: #3f7f5f; font-size: 10pt;"><div align="left"><span style="color: #3f7f5f; font-size: 10pt;"><strong>// invoke methods on your method here</strong></span></div></span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><strong>ksession.startProcess( </strong><span style="color: #2a00ff; font-size: 10pt;"><strong>"process_1"</strong></span><p align="left"><div align="left"><span style="font-size: 10pt;"><strong>, params);</strong></span></div></p></p></span><span style="font-size: 10pt;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><strong>ksession.dispose();</strong></p><p align="left"><strong>} </strong><span style="color: #7f0055; font-size: 10pt;"><strong>catch</strong></span><p align="left"><div align="left"><span style="font-size: 10pt;"><strong>( Throwable t ) {</strong></span></div></p></p></span><span style="font-size: 10pt;"><p align="left"><strong>t.printStackTrace();</strong></p><p><strong>}</strong></p></span></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><span style="color: #7f0055; font-size: 10pt;">Here is my persistence.xml </span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #008080; font-size: 10pt;">  </span></p><p><span style="color: #008080; font-size: 10pt;"><p align="left"><</p></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #3f7f7f; font-size: 10pt;">persistence</span><span style="font-size: 10pt;"> </span><span style="color: #7f007f; font-size: 10pt;">xmlns</span><span style="font-size: 10pt;">=</span></p><p align="left"><em style="color: #2a00ff; font-size: 10pt;"><p align="left"><em style="color: #2a00ff; font-size: 10pt;"><span>"</span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence" target="_blank">http://java.sun.com/xml/ns/persistence</a><span>"</span></em></p></em><p align="left"><span style="color: #2a00ff; font-size: 10pt;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p align="left"><span style="color: #2a00ff; font-size: 10pt;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p align="left"><span style="color: #2a00ff; font-size: 10pt;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><span style="color: #2a00ff; font-size: 10pt;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></p></div>
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