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