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org.jboss.resteasy.spi.UnhandledException: java.lang.RuntimeException: Could not initialize stateful knowledge session: Could not connect task client
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created by <a href="http://community.jboss.org/people/chaitanya1987">Chaitanya Desai</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/617733#617733">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hello Everyone,</p><p>I am getting an exception when configuring jbpm 5.1 on jboss 5.1 with mysql 5.1. </p><p>I have modified hibernate.cfg.xml, persistence.xml, testDS1.xml, jbpm-human-task-5.1.0.Final.jar and I am able to export the jbpm schema in my sql tables. </p><p>4 new tables : eventtypes, processinstanceinfo,sessioninfo, workiteminfo got created into the database named jbpm_demo within mysql. </p><p>However when i try to open the console i get the above exception.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I think the exception is comming due to modifications required in jbpm-human-task-5.1.0.Final.jar . Did anyone face the similar exception (Exception stack trace @ bottom)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Here is the information from the modified files @ the time of exception:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>jbpm-human-task-5.1.0.Final.jar: persistence.xml :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><properties></p><p>      <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5InnoDBDialect"/></p><p>      <property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/></p><p>      <property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/JBPM_DEMO?useUnicode=true&amp;characterEncoding=UTF-8" /></p><p>      <property name="hibernate.connection.username" value="root"/></p><p>      <property name="hibernate.connection.password" value=""/></p><p>      <property name="hibernate.connection.autocommit" value="false" /></p><p>      <property name="hibernate.max_fetch_depth" value="3"/></p><p>      <property name="hibernate.hbm2ddl.auto" value="create" /></p><p>      <property name="hibernate.show_sql" value="false" /></p><p>    </properties> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Hibernate.cfg.xml :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>  <session-factory></p><p>  </p><p>        <!-- Database connection settings --></p><p>        <property name="connection.driver_class">com.mysql.jdbc.Driver</property></p><p>        <property name="connection.url">jdbc:mysql://localhost:3306/jbpm_demo?useUnicode=true&amp;characterEncoding=UTF-8</property></p><p>        <!--property name="connection.url">jdbc:h2:file:/NotBackedUp/data/mydb</property--></p><p>        <property name="connection.username">root</property></p><p>        <property name="connection.password"></property></p><p>        <!-- JDBC connection pool (use the built-in) --></p><p>        <property name="connection.pool_size">1</property> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        <!-- SQL dialect --></p><p>        <property name="dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        <!-- Enable Hibernate's automatic session context management --></p><p>        <property name="current_session_context_class">thread</property> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        <!-- Disable the second-level cache  --></p><p>        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        <!-- Echo all executed SQL to stdout --></p><p>        <property name="show_sql">false</property> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        <!-- Drop and re-create the database schema on startup? --></p><p>        <property name="hbm2ddl.auto">create</property> </p><p>        <mapping resource="AuditLog.hbm.xml"/> </p><p>    </session-factory></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Persistence.xml :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> <persistence-unit name="org.jbpm.persistence.jpa" transaction-type="JTA"></p><p>    <provider>org.hibernate.ejb.HibernatePersistence</provider></p><p>    <jta-data-source>java:jdbc/jbpmDatasource</jta-data-source>       </p><p>    <mapping-file>META-INF/JBPMorm.xml</mapping-file></p><p>    <class>org.jbpm.persistence.processinstance.ProcessInstanceInfo</class></p><p>    <class>org.drools.persistence.info.SessionInfo</class></p><p>    <class>org.drools.persistence.info.WorkItemInfo</class></p><p>    <properties></p><p>      <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5InnoDBDialect"/>         </p><p>      <property name="hibernate.max_fetch_depth" value="3"/></p><p>      <property name="hibernate.hbm2ddl.auto" value="create" /></p><p>      <property name="hibernate.show_sql" value="false" /> </p><p>      <property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.JBossTransactionManagerLookup" /></p><p>    </properties>        </p><p>  </persistence-unit></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 style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>TestDS1.xml :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><local-tx-datasource></p><p>    <jndi-name>jdbc/jbpmDatasource</jndi-name></p><p>    <connection-url>jdbc:mysql://localhost:3306/jbpm_demo?useUnicode=true&amp;characterEncoding=UTF-8</connection-url></p><p>    <!--connection-url>jdbc:h2:mem:mydb</connection-url--></p><p>    <driver-class>com.mysql.jdbc.Driver</driver-class></p><p>    <user-name>root</user-name></p><p>    <password></password></p><p>  </local-tx-datasource></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>EXCEPTION STACK TRACE</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>25.07.2011 18:56:43 INFO  [Configuration] Reading mappings from resource : META-INF/JBPMorm.xml</p><p>25.07.2011 18:56:43 INFO  [QueryBinder] Binding Named query: ProcessInstancesWaitingForEvent => select processInstanceInfo.processInstanceId from ProcessInstanceInfo processInstanceInfo where :type in elements(processInstanceInfo.eventTypes)</p><p>25.07.2011 18:56:43 INFO  [AnnotationBinder] Binding entity from annotated class: org.jbpm.persistence.processinstance.ProcessInstanceInfo</p><p>25.07.2011 18:56:43 INFO  [EntityBinder] Bind entity org.jbpm.persistence.processinstance.ProcessInstanceInfo on table ProcessInstanceInfo</p><p>25.07.2011 18:56:43 INFO  [AnnotationBinder] Binding entity from annotated class: org.drools.persistence.info.SessionInfo</p><p>25.07.2011 18:56:43 INFO  [EntityBinder] Bind entity org.drools.persistence.info.SessionInfo on table SessionInfo</p><p>25.07.2011 18:56:43 INFO  [AnnotationBinder] Binding entity from annotated class: org.drools.persistence.info.WorkItemInfo</p><p>25.07.2011 18:56:43 INFO  [EntityBinder] Bind entity org.drools.persistence.info.WorkItemInfo on table WorkItemInfo</p><p>25.07.2011 18:56:43 INFO  [HibernateSearchEventListenerRegister] Unable to find org.hibernate.search.event.FullTextIndexEventListener on the classpath. Hibernate Search is not enabled.</p><p>25.07.2011 18:56:43 INFO  [NamingHelper] JNDI InitialContext properties:{}</p><p>25.07.2011 18:56:43 INFO  [DatasourceConnectionProvider] Using datasource: java:jdbc/jbpmDatasource</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] RDBMS: MySQL, version: 5.1.58-community</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] JDBC driver: MySQL-AB JDBC Driver, version: mysql-connector-java-5.1.17 ( Revision: ${bzr.revision-id} )</p><p>25.07.2011 18:56:43 INFO  [Dialect] Using dialect: org.hibernate.dialect.MySQL5InnoDBDialect</p><p>25.07.2011 18:56:43 INFO  [TransactionFactoryFactory] Transaction strategy: org.hibernate.ejb.transaction.JoinableCMTTransactionFactory</p><p>25.07.2011 18:56:43 INFO  [TransactionManagerLookupFactory] instantiating TransactionManagerLookup: org.hibernate.transaction.JBossTransactionManagerLookup</p><p>25.07.2011 18:56:43 INFO  [TransactionManagerLookupFactory] instantiated TransactionManagerLookup</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Automatic flush during beforeCompletion(): disabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Automatic session close at end of transaction: disabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] JDBC batch size: 15</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] JDBC batch updates for versioned data: disabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Scrollable result sets: enabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] JDBC3 getGeneratedKeys(): enabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Connection release mode: auto</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Maximum outer join fetch depth: 3</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Default batch fetch size: 1</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Generate SQL with comments: disabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Order SQL updates by primary key: disabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Order SQL inserts for batching: disabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory</p><p>25.07.2011 18:56:43 INFO  [ASTQueryTranslatorFactory] Using ASTQueryTranslatorFactory</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Query language substitutions: {}</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] JPA-QL strict compliance: enabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Second-level cache: enabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Query cache: disabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Cache region factory : org.hibernate.cache.impl.NoCachingRegionFactory</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Optimize cache for minimal puts: disabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Structured second-level cache entries: disabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Statistics: disabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Deleted entity synthetic identifier rollback: disabled</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Default entity-mode: pojo</p><p>25.07.2011 18:56:43 INFO  [SettingsFactory] Named query checking : enabled</p><p>25.07.2011 18:56:43 INFO  [SessionFactoryImpl] building session factory</p><p>25.07.2011 18:56:43 INFO  [SessionFactoryObjectFactory] Not binding factory to JNDI, no JNDI name configured</p><p>25.07.2011 18:56:43 INFO  [SchemaExport] Running hbm2ddl schema export</p><p>25.07.2011 18:56:43 INFO  [SchemaExport] exporting generated schema to database</p><p>25.07.2011 18:56:43 INFO  [SchemaExport] schema export complete</p><p>25.07.2011 18:56:43 INFO  [NamingHelper] JNDI InitialContext properties:{}</p><p>25.07.2011 18:56:44 INFO  [STDOUT] Loading session data ...</p><p>25.07.2011 18:56:44 INFO  [STDOUT] Error loading session data: java.lang.reflect.InvocationTargetException</p><p>25.07.2011 18:56:44 INFO  [STDOUT] Creating new session data ...</p><p>25.07.2011 18:56:45 ERROR [[Resteasy]] Servlet.service() for servlet Resteasy threw exception</p><p>org.jboss.resteasy.spi.UnhandledException: java.lang.RuntimeException: Could not initialize stateful knowledge session: Could not connect task client</p><p>        at org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:319)</p><p>        at org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:230)</p><p>        at org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:206)</p><p>        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:360)</p><p>        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:173)</p><p>        at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:93)</p><p>        at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:68)</p><p>        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)</p><p>        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)</p><p>        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)</p><p>        at org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59)</p><p>        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)</p><p>        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)</p><p>        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)</p><p>        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)</p><p>        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)</p><p>        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)</p><p>        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)</p><p>        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)</p><p>        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)</p><p>        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)</p><p>        at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)</p><p>        at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)</p><p>        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)</p><p>        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)</p><p>        at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)</p><p>        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)</p><p>        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)</p><p>        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)</p><p>        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)</p><p>        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)</p><p>        at java.lang.Thread.run(Thread.java:662)</p><p>Caused by: java.lang.RuntimeException: Could not initialize stateful knowledge session: Could not connect task client</p><p>        at org.jbpm.integration.console.CommandDelegate.newStatefulKnowledgeSession(CommandDelegate.java:185)</p><p>        at org.jbpm.integration.console.CommandDelegate.getSession(CommandDelegate.java:193)</p><p>        at org.jbpm.integration.console.CommandDelegate.<init>(CommandDelegate.java:71)</p><p>        at org.jbpm.integration.console.ProcessManagement.<init>(ProcessManagement.java:35)</p><p>        at org.jbpm.integration.console.ManagementFactory.createProcessManagement(ManagementFactory.java:22)</p><p>        at org.jbpm.integration.console.ManagementFactory.createProcessManagement(ManagementFactory.java:19)</p><p>        at org.jboss.bpm.console.server.ProcessMgmtFacade.getProcessManagement(ProcessMgmtFacade.java:98)</p><p>        at org.jboss.bpm.console.server.ProcessMgmtFacade.getDefinitionsJSON(ProcessMgmtFacade.java:122)</p><p>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</p><p>        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)</p><p>        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)</p><p>        at java.lang.reflect.Method.invoke(Method.java:597)</p><p>        at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:117)</p><p>        at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:260)</p><p>        at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:232)</p><p>        at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:166)</p><p>        at org.jboss.resteasy.core.DispatcherUtilities.getJaxrsResponse(DispatcherUtilities.java:142)</p><p>        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)</p><p>        ... 28 more</p><p>Caused by: java.lang.IllegalArgumentException: Could not connect task client</p><p>        at org.jbpm.process.workitem.wsht.CommandBasedWSHumanTaskHandler.connect(CommandBasedWSHumanTaskHandler.java:88)</p><p>        at org.jbpm.integration.console.CommandDelegate.newStatefulKnowledgeSession(CommandDelegate.java:181)</p><p>        ... 45 more</p></div>
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