I am using Seam, JBoss Jbpm and Resteasy. I've got a quite simple process definition:

<start-state name="create">
	<transition name="send" to="inbox" />
</start-state>
<node name="inbox">
	<action expression="#{test.sayHello}" />
	<transition name="acknowledge" to="acknowledged" />
</node>
<end-state name="acknowledged" />

This is actually the class that allegedly would start the procedure


@Name("webservice")
@Path("/webservice")
@AutoCreate
public class WebService
{
    @GET
    @CreateProcess(definition="Blah")
    @Transactional
    public String getSomething() throws Exception
    {
        ...
    }

}

The procedure definition can also be quite simple: http://paperwork.jboss.org/jbpm/xsd/jpdl-3.2.xsd" title="Blah">

<start-state name="create">
	<transition name="send" to="inbox" />
</start-state>
<node name="inbox">
	<action expression="#{test.sayHello}" />
	<transition name="acknowledge" to="acknowledged" />
</node>
<end-state name="acknowledged" />

Then, after i attempt to call the WebService, I recieve the next Stack Trace:

10:38:41,443 ERROR [STDERR] Caused by: org.jbpm.JbpmException: couldn't find process definition 'Blah' 10:38:41,443 ERROR [STDERR] at org.jbpm.db.GraphSession.findLatestProcessDefinition(GraphSession.java:158) 10:38:41,443 ERROR [STDERR] at org.jbpm.JbpmContext.newProcessInstanceForUpdate(JbpmContext.java:417) 10:38:41,444 ERROR [STDERR] at org.jboss.seam.bpm.BusinessProcess.createProcess(BusinessProcess.java:134) 10:38:41,444 ERROR [STDERR] at org.jboss.seam.bpm.BusinessProcess.createProcess(BusinessProcess.java:123) 10:38:41,444 ERROR [STDERR] at org.jboss.seam.bpm.BusinessProcessInterceptor.afterInvocation(BusinessProcessInterceptor.java:108) 10:38:41,444 ERROR [STDERR] at org.jboss.seam.bpm.BusinessProcessInterceptor.aroundInvoke(BusinessProcessInterceptor.java:51) 10:38:41,444 ERROR [STDERR] at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) 10:38:41,444 ERROR [STDERR] at org.jboss.seam.transaction.TransactionInterceptor$1.work(TransactionInterceptor.java:95) 10:38:41,444 ERROR [STDERR] at org.jboss.seam.util.Work.workInTransaction(Work.java:47) 10:38:41,444 ERROR [STDERR] at org.jboss.seam.transaction.TransactionInterceptor.aroundInvoke(TransactionInterceptor.java:89) 10:38:41,444 ERROR [STDERR] at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) 10:38:41,445 ERROR [STDERR] at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44) 10:38:41,445 ERROR [STDERR] at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) 10:38:41,445 ERROR [STDERR] at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) 10:38:41,445 ERROR [STDERR] at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:185) 10:38:41,445 ERROR [STDERR] at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:103) 10:38:41,445 ERROR [STDERR] at com.locaweb.infra.gridserver.resources.ServerResource_$$_javassist_5.getServerResource(ServerResource_$$_javassist_5.java) 10:38:41,445 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 10:38:41,445 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 10:38:41,447 ERROR [STDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 10:38:41,447 ERROR [STDERR] at java.lang.reflect.Method.invoke(Method.java:585) 10:38:41,447 ERROR [STDERR] at org.resteasy.MethodInjectorImpl.invoke(MethodInjectorImpl.java:72) 10:38:41,447 ERROR [STDERR] ... 28 more 10:38:41,448 ERROR [STDERR] Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection 10:38:41,449 ERROR [STDERR] at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103) 10:38:41,449 ERROR [STDERR] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91) 10:38:41,449 ERROR [STDERR] at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) 10:38:41,449 ERROR [STDERR] at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29) 10:38:41,449 ERROR [STDERR] at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:426) 10:38:41,449 ERROR [STDERR] at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144) 10:38:41,449 ERROR [STDERR] at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:139) 10:38:41,450 ERROR [STDERR] at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1547) 10:38:41,450 ERROR [STDERR] at org.hibernate.loader.Loader.doQuery(Loader.java:673) 10:38:41,450 ERROR [STDERR] at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236) 10:38:41,450 ERROR [STDERR] at org.hibernate.loader.Loader.doList(Loader.java:2220) 10:38:41,450 ERROR [STDERR] at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104) 10:38:41,450 ERROR [STDERR] at org.hibernate.loader.Loader.list(Loader.java:2099) 10:38:41,450 ERROR [STDERR] at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378) 10:38:41,451 ERROR [STDERR] at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338) 10:38:41,451 ERROR [STDERR] at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172) 10:38:41,451 ERROR [STDERR] at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121) 10:38:41,451 ERROR [STDERR] at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79) 10:38:41,451 ERROR [STDERR] at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:811) 10:38:41,451 ERROR [STDERR] at org.jbpm.db.GraphSession.findLatestProcessDefinition(GraphSession.java:154) 10:38:41,451 ERROR [STDERR] ... 49 more 10:38:41,452 ERROR [STDERR] Caused by: org.jboss.util.NestedSQLException: Could not enlist in transaction on entering meta-aware object!; - nested throwable: (javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist resource, see the previous warnings. tx=TransactionImple < ac, BasicAction: 7f000101:d2f8:4a1fe246:4e status: ActionStatus.ABORT_ONLY >); - nested throwable: (org.jboss.resource.JBossResourceException: Could not enlist in transaction on entering meta-aware object!; - nested throwable: (javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist resource, see the previous warnings. tx=TransactionImple < ac, BasicAction: 7f000101:d2f8:4a1fe246:4e status: ActionStatus.ABORT_ONLY >)) 10:38:41,453 ERROR [STDERR] at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:95) 10:38:41,453 ERROR [STDERR] at org.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:69) 10:38:41,453 ERROR [STDERR] at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:423) 10:38:41,453 ERROR [STDERR] ... 64 more 10:38:41,455 ERROR [STDERR] Caused by: org.jboss.resource.JBossResourceException: Could not enlist in transaction on entering meta-aware object!; - nested throwable: (javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist resource, see the previous warnings. tx=TransactionImple < ac, BasicAction: 7f000101:d2f8:4a1fe246:4e status: ActionStatus.ABORT_ONLY >) 10:38:41,459 ERROR [STDERR] at org.jboss.resource.connectionmanager.TxConnectionManager.managedConnectionReconnected(TxConnectionManager.java:358) 10:38:41,460 ERROR [STDERR] at org.jboss.resource.connectionmanager.BaseConnectionManager2.reconnectManagedConnection(BaseConnectionManager2.java:524) 10:38:41,460 ERROR [STDERR] at org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:405) 10:38:41,460 ERROR [STDERR] at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:849) 10:38:41,460 ERROR [STDERR] at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:89) 10:38:41,460 ERROR [STDERR] ... 66 more 10:38:41,461 ERROR [STDERR] Caused by: javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist resource, see the previous warnings. tx=TransactionImple < ac, BasicAction: 7f000101:d2f8:4a1fe246:4e status: ActionStatus.ABORT_ONLY > 10:38:41,462 ERROR [STDERR] at org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener$TransactionSynchronization.checkEnlisted(TxConnectionManager.java:759) 10:38:41,462 ERROR [STDERR] at org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener.enlist(TxConnectionManager.java:592) 10:38:41,462 ERROR [STDERR] at org.jboss.resource.connectionmanager.TxConnectionManager.managedConnectionReconnected(TxConnectionManager.java:352) 10:38:41,462 ERROR [STDERR] ... 70 more

I am utilizing a SQLServer Database with two xa-datasources (one for my database and something for Jbpm's Database) using the driver internet.sourceforge.jtds.jdbcx.JtdsDataSource. The webservice does make use of the non-jbpm database.

After I do this with no getSomething() method being able to access the hibernate's session from the non-jbpm database it really works normally. However, basically inject the session and check out exactly the same factor it more often than not does not work.

Does anybody understand what is going on?