3 Replies Latest reply on Jun 20, 2006 9:04 AM by saish

Hibernate TransientObjectException on JbpmContext Initial Sa

saish Jun 19, 2006 8:56 PM

I am getting a strange TransientObjectException (in Hibernate) when attempting to call JbpmContext#save(ProcessInstance). In specific, it is complaining of 'org.jbpm.graph.def.Node' (probably not very helpful to you guys) when the Hibernate session is closed.

In memory, jPBM behaves fine. When attempting to persist to HSQLDB, I get the aforementioned exception. I have verified that the jPBM tables do exist in the file storing my JBoss local HSQLDB in the file system.

This error has me totally stumped. I saw several other search hits via Google, but none when simple trying to save a ProcessInstance for the first time. Any assistance would be greatly appreciated.

My thanks in advance,

Saish

--- ENVIRONMENT ---

* HSQL DB (installed with JBoss 4)

* jPBM 3.1

* EJB 3.0

* Hibernate 3.2.0-CR1 (default with JBoss 4)

* JBoss AS 4.0.4-CR2 (installed with JBoss 4)

* JDK 1.5

* Windows XP

--- JBPM HELPER IMPLEMENTATION ---

public static final ProcessInstance startProcess(final InputStream in) {

ProcessDefinition processDefinition = ProcessDefinition.parseXmlInputStream(in);
ProcessInstance processInstance = new ProcessInstance(processDefinition);
Token tokenRoot = processInstance.getRootToken();
tokenRoot.signal();
return processInstance;
}

public static final void saveProcess(final ProcessInstance target) {

JbpmContext context = CONFIG.createJbpmContext();
try {
context.save(target);
}
finally {
context.close(); // <--- CODE THAT FAILS !!!
}
}

--- EJB 3.0 IMPLEMENTATION ---

public final boolean isJbpmAlive() {

// FIXME This is terrible. Need to inject or somehow otherwise handle elegantly.
try {
InputStream in = new FileInputStream("/xxx/xxx/xxx.ear/test.par/processdefinition.xml");
return (JbpmHelper.startProcess(in) != null);
}
catch (IOException fatal) {
throw new ConfigurationError("Unable to load jBPM process definition", fatal);
}
}

public final boolean isJbpmPersistent() {

// FIXME This is terrible. Need to inject or somehow otherwise handle elegantly.
try {
InputStream in = new FileInputStream("/xxx/xxx/xxx.ear/test.par/processdefinition.xml");
ProcessInstance pi = JbpmHelper.startProcess(in);
JbpmHelper.saveProcess(pi); // <--- CODE THAT FAILS
return true;
}
catch (IOException fatal) {
fatal.printStackTrace();
return false;
// throw new ConfigurationError("Unable to load jBPM process definition", fatal);
}
}

--- PROCESSDEFINITION.XML ---

<?xml version="1.0" encoding="UTF-8"?>

<process-definition
xmlns="http://jbpm.org/3/jpdl"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://jbpm.org/3/jpdl http://jbpm.org/xsd/jpdl-3.0.xsd"
name="simple">
<start-state name="start">

</start-state>
<end-state name="end"></end-state>
<task-node name="task1">

</task-node>
</process-definition>

--- JSP SCRIPTLET FRAGMENT ---

jBPM is persisting locally? <%= local.isJbpmPersistent() %> <---- CODE THAT FAILS

jPBM is persisting remotely? <%= remote.isJbpmPersistent() %>

--- EXCEPTION STACK TRACE ---

20:36:03,531 INFO [STDOUT] Hibernate: insert into JBPM_TOKEN (ID_, VERSION_, NA
ME_, START_, END_, NODEENTER_, NEXTLOGINDEX_, ISABLETOREACTIVATEPARENT_, ISTERMI
NATIONIMPLICIT_, ISSUSPENDED_, NODE_, PROCESSINSTANCE_, PARENT_, SUBPROCESSINSTA
NCE_) values (null, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
20:36:03,531 INFO [STDOUT] Hibernate: call identity()
20:36:03,531 INFO [STDOUT] Hibernate: insert into JBPM_PROCESSINSTANCE (ID_, VE
RSION_, START_, END_, ISSUSPENDED_, PROCESSDEFINITION_, ROOTTOKEN_, SUPERPROCESS
TOKEN_) values (null, ?, ?, ?, ?, ?, ?, ?)
20:36:03,531 INFO [STDOUT] Hibernate: call identity()
20:36:03,531 INFO [STDOUT] Hibernate: insert into JBPM_MODULEINSTANCE (ID_, PRO
CESSINSTANCE_, TASKMGMTDEFINITION_, CLASS_) values (null, ?, ?, 'T')
20:36:03,531 INFO [STDOUT] Hibernate: call identity()
20:36:03,531 INFO [STDOUT] Hibernate: insert into JBPM_TASKINSTANCE (ID_, NAME_
, DESCRIPTION_, ACTORID_, CREATE_, START_, END_, DUEDATE_, PRIORITY_, ISCANCELLE
D_, ISSUSPENDED_, ISOPEN_, ISSIGNALLING_, ISBLOCKING_, TASK_, TOKEN_, SWIMLANINS
TANCE_, TASKMGMTINSTANCE_, CLASS_) values (null, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?
, ?, ?, ?, ?, ?, ?, 'T')
20:36:03,531 INFO [STDOUT] Hibernate: call identity()
20:36:03,531 INFO [STDOUT] Hibernate: insert into JBPM_MODULEINSTANCE (ID_, PRO
CESSINSTANCE_, CLASS_) values (null, ?, 'C')
20:36:03,531 INFO [STDOUT] Hibernate: call identity()
20:36:03,531 INFO [STDOUT] Hibernate: insert into JBPM_LOG (ID_, INDEX_, DATE_,
TOKEN_, PARENT_, CLASS_) values (null, ?, ?, ?, ?, 'I')
20:36:03,546 INFO [STDOUT] Hibernate: call identity()
20:36:03,546 INFO [STDOUT] Hibernate: insert into JBPM_LOG (ID_, INDEX_, DATE_,
TOKEN_, PARENT_, TRANSITION_, CLASS_) values (null, ?, ?, ?, ?, ?, 'S')
20:36:03,546 INFO [STDOUT] Hibernate: call identity()
20:36:03,546 INFO [STDOUT] Hibernate: insert into JBPM_LOG (ID_, INDEX_, DATE_,
TOKEN_, PARENT_, TRANSITION_, SOURCENODE_, DESTINATIONNODE_, CLASS_) values (nu
ll, ?, ?, ?, ?, ?, ?, ?, 'T')
20:36:03,546 INFO [STDOUT] Hibernate: call identity()
20:36:03,546 INFO [STDOUT] Hibernate: insert into JBPM_LOG (ID_, INDEX_, DATE_,
TOKEN_, PARENT_, TASKINSTANCE_, CLASS_) values (null, ?, ?, ?, ?, ?, '3')
20:36:03,546 INFO [STDOUT] Hibernate: call identity()
20:36:03,546 INFO [STDOUT] Hibernate: insert into JBPM_LOG (ID_, INDEX_, DATE_,
TOKEN_, PARENT_, TRANSITION_, CLASS_) values (null, ?, ?, ?, ?, ?, 'S')
20:36:03,546 INFO [STDOUT] Hibernate: call identity()
20:36:03,546 INFO [STDOUT] Hibernate: insert into JBPM_LOG (ID_, INDEX_, DATE_,
TOKEN_, PARENT_, NODE_, ENTER_, LEAVE_, DURATION_, CLASS_) values (null, ?, ?,
?, ?, ?, ?, ?, ?, 'N')
20:36:03,546 INFO [STDOUT] Hibernate: call identity()
20:36:03,546 INFO [STDOUT] Hibernate: insert into JBPM_LOG (ID_, INDEX_, DATE_,
TOKEN_, PARENT_, TRANSITION_, SOURCENODE_, DESTINATIONNODE_, CLASS_) values (nu
ll, ?, ?, ?, ?, ?, ?, ?, 'T')
20:36:03,546 INFO [STDOUT] Hibernate: call identity()
20:36:03,546 INFO [STDOUT] Hibernate: insert into JBPM_LOG (ID_, INDEX_, DATE_,
TOKEN_, PARENT_, CLASS_) values (null, ?, ?, ?, ?, 'X')
20:36:03,546 INFO [STDOUT] Hibernate: call identity()
20:36:03,546 INFO [STDOUT] Hibernate: insert into JBPM_LOG (ID_, INDEX_, DATE_,
TOKEN_, PARENT_, TASKINSTANCE_, TASKACTORID_, CLASS_) values (null, ?, ?, ?, ?,
?, ?, '1')
20:36:03,546 INFO [STDOUT] Hibernate: call identity()
20:36:03,546 INFO [STDOUT] Hibernate: insert into JBPM_LOG (ID_, INDEX_, DATE_,
TOKEN_, PARENT_, NODE_, ENTER_, LEAVE_, DURATION_, CLASS_) values (null, ?, ?,
?, ?, ?, ?, ?, ?, 'N')
20:36:03,546 INFO [STDOUT] Hibernate: call identity()
20:36:03,546 INFO [STDOUT] Hibernate: insert into JBPM_LOG (ID_, INDEX_, DATE_,
TOKEN_, PARENT_, TRANSITION_, SOURCENODE_, DESTINATIONNODE_, CLASS_) values (nu
ll, ?, ?, ?, ?, ?, ?, ?, 'T')
20:36:03,562 INFO [STDOUT] Hibernate: call identity()
20:36:03,562 ERROR [STDERR] org.jbpm.persistence.JbpmPersistenceException: could
n't flush hibernate session
20:36:03,562 ERROR [STDERR] at org.jbpm.persistence.db.DbPersistenceService.
close(DbPersistenceService.java:181)
20:36:03,562 ERROR [STDERR] at org.jbpm.svc.Services.close(Services.java:211
)
20:36:03,562 ERROR [STDERR] at org.jbpm.JbpmContext.close(JbpmContext.java:1
39)
20:36:03,562 ERROR [STDERR] at com.xxx.xxx.xxx.integration.jbpm.JbpmHelpe
r.saveProcess(JbpmHelper.java:61)
20:36:03,562 ERROR [STDERR] at com.xxx.xxx.xxx.model.HeartbeatImpl.is
JbpmPersistent(HeartbeatImpl.java:89)
20:36:03,562 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(
Native Method)
20:36:03,562 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(N
ativeMethodAccessorImpl.java:39)
20:36:03,562 ERROR [STDERR] at sun.reflect.DelegatingMethodAccessorImpl.invo
ke(DelegatingMethodAccessorImpl.java:25)
20:36:03,562 ERROR [STDERR] at java.lang.reflect.Method.invoke(Method.java:5
85)
20:36:03,562 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invo
keNext(MethodInvocation.java:109)
20:36:03,562 ERROR [STDERR] at org.jboss.ejb3.entity.TransactionScopedEntity
ManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
20:36:03,562 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invo
keNext(MethodInvocation.java:98)
20:36:03,562 ERROR [STDERR] at org.jboss.ejb3.AllowedOperationsInterceptor.i
nvoke(AllowedOperationsInterceptor.java:47)
20:36:03,562 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invo
keNext(MethodInvocation.java:98)
20:36:03,562 ERROR [STDERR] at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(T
xPolicy.java:79)
20:36:03,562 ERROR [STDERR] at org.jboss.aspects.tx.TxInterceptor$Required.i
nvoke(TxInterceptor.java:192)
20:36:03,562 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invo
keNext(MethodInvocation.java:98)
20:36:03,562 ERROR [STDERR] at org.jboss.aspects.tx.TxPropagationInterceptor
.invoke(TxPropagationInterceptor.java:76)
20:36:03,562 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invo
keNext(MethodInvocation.java:98)
20:36:03,562 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessInstanceInt
erceptor.invoke(StatelessInstanceInterceptor.java:54)
20:36:03,562 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invo
keNext(MethodInvocation.java:98)
20:36:03,562 ERROR [STDERR] at org.jboss.aspects.security.AuthenticationInte
rceptor.invoke(AuthenticationInterceptor.java:78)
20:36:03,562 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invo
keNext(MethodInvocation.java:98)
20:36:03,562 ERROR [STDERR] at org.jboss.ejb3.ENCPropagationInterceptor.invo
ke(ENCPropagationInterceptor.java:47)
20:36:03,562 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invo
keNext(MethodInvocation.java:98)
20:36:03,562 ERROR [STDERR] at org.jboss.ejb3.asynchronous.AsynchronousInter
ceptor.invoke(AsynchronousInterceptor.java:106)
20:36:03,562 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invo
keNext(MethodInvocation.java:98)
20:36:03,562 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessContainer.l
ocalInvoke(StatelessContainer.java:181)
20:36:03,562 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessLocalProxy.
invoke(StatelessLocalProxy.java:79)
20:36:03,562 ERROR [STDERR] at $Proxy74.isJbpmPersistent(Unknown Source)
20:36:03,562 ERROR [STDERR] at org.apache.jsp.jsp.index_jsp._jspService(inde
x_jsp.java:102)
20:36:03,562 ERROR [STDERR] at org.apache.jasper.runtime.HttpJspBase.service
(HttpJspBase.java:97)
20:36:03,562 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpSe
rvlet.java:810)
20:36:03,562 ERROR [STDERR] at org.apache.jasper.servlet.JspServletWrapper.s
ervice(JspServletWrapper.java:332)
20:36:03,562 ERROR [STDERR] at org.apache.jasper.servlet.JspServlet.serviceJ
spFile(JspServlet.java:314)
20:36:03,562 ERROR [STDERR] at org.apache.jasper.servlet.JspServlet.service(
JspServlet.java:264)
20:36:03,562 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpSe
rvlet.java:810)
20:36:03,562 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterCha
in.internalDoFilter(ApplicationFilterChain.java:252)
20:36:03,562 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterCha
in.doFilter(ApplicationFilterChain.java:173)
20:36:03,562 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilte
r.doFilter(ReplyHeaderFilter.java:96)
20:36:03,562 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterCha
in.internalDoFilter(ApplicationFilterChain.java:202)
20:36:03,562 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterCha
in.doFilter(ApplicationFilterChain.java:173)
20:36:03,562 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve
.invoke(StandardWrapperValve.java:213)
20:36:03,562 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve
.invoke(StandardContextValve.java:178)
20:36:03,562 ERROR [STDERR] at org.jboss.web.tomcat.security.CustomPrincipal
Valve.invoke(CustomPrincipalValve.java:54)
20:36:03,562 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssocia
tionValve.invoke(SecurityAssociationValve.java:174)
20:36:03,562 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValv
e.invoke(JaccContextValve.java:74)
20:36:03,562 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.in
voke(StandardHostValve.java:126)
20:36:03,562 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.i
nvoke(ErrorReportValve.java:105)
20:36:03,562 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.
invoke(StandardEngineValve.java:107)
20:36:03,562 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.s
ervice(CoyoteAdapter.java:148)
20:36:03,562 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor.proc
ess(Http11Processor.java:869)
20:36:03,562 ERROR [STDERR] at org.apache.coyote.http11.Http11BaseProtocol$H
ttp11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
20:36:03,562 ERROR [STDERR] at org.apache.tomcat.util.net.PoolTcpEndpoint.pr
ocessSocket(PoolTcpEndpoint.java:527)
20:36:03,562 ERROR [STDERR] at org.apache.tomcat.util.net.MasterSlaveWorkerT
hread.run(MasterSlaveWorkerThread.java:112)
20:36:03,562 ERROR [STDERR] at java.lang.Thread.run(Thread.java:595)
20:36:03,562 ERROR [STDERR] Caused by: org.hibernate.TransientObjectException: o
rg.jbpm.graph.def.Node
20:36:03,562 ERROR [STDERR] at org.hibernate.engine.ForeignKeys.getEntityIde
ntifierIfNotUnsaved(ForeignKeys.java:216)
20:36:03,562 ERROR [STDERR] at org.hibernate.type.EntityType.getIdentifier(E
ntityType.java:108)
20:36:03,562 ERROR [STDERR] at org.hibernate.type.ManyToOneType.isDirty(Many
ToOneType.java:221)
20:36:03,562 ERROR [STDERR] at org.hibernate.type.TypeFactory.findDirty(Type
Factory.java:476)
20:36:03,562 ERROR [STDERR] at org.hibernate.persister.entity.AbstractEntity
Persister.findDirty(AbstractEntityPersister.java:2900)
20:36:03,562 ERROR [STDERR] at org.hibernate.event.def.DefaultFlushEntityEve
ntListener.dirtyCheck(DefaultFlushEntityEventListener.java:474)
20:36:03,562 ERROR [STDERR] at org.hibernate.event.def.DefaultFlushEntityEve
ntListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:197)
20:36:03,562 ERROR [STDERR] at org.hibernate.event.def.DefaultFlushEntityEve
ntListener.onFlushEntity(DefaultFlushEntityEventListener.java:120)
20:36:03,562 ERROR [STDERR] at org.hibernate.event.def.AbstractFlushingEvent
Listener.flushEntities(AbstractFlushingEventListener.java:195)
20:36:03,562 ERROR [STDERR] at org.hibernate.event.def.AbstractFlushingEvent
Listener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76)
20:36:03,562 ERROR [STDERR] at org.hibernate.event.def.DefaultFlushEventList
ener.onFlush(DefaultFlushEventListener.java:26)
20:36:03,562 ERROR [STDERR] at org.hibernate.impl.SessionImpl.flush(SessionI
mpl.java:988)
20:36:03,562 ERROR [STDERR] at org.jbpm.persistence.db.DbPersistenceService.
close(DbPersistenceService.java:179)
20:36:03,562 ERROR [STDERR] ... 55 more

--- JBPM.CFG.XML ---

<jbpm-configuration>

<jbpm-context>



</jbpm-context>





</jbpm-configuration>

--- HIBERNATE.PROPERTIES ---

hibernate.dialect=org.hibernate.dialect.HSQLDialect
hibernate.connection.driver_class=org.hsqldb.jdbcDriver
# the sql.enforce_strict_size property is set to false by default
# but we need it set to true for SQL standard conformance
hibernate.connection.url=jdbc:hsqldb:C:\jboss\app_server-4.0.4.CR2\server\default\data$/hypersonic$/localDB
hibernate.connection.username=sa
hibernate.connection.password=

hibernate.show_sql=true
#hibernate.c3p0.min_size=1
#hibernate.c3p0.max_size=3

1. Re: Hibernate TransientObjectException on JbpmContext Initia

saish Jun 19, 2006 8:59 PM (in response to saish)

Hmmm.... XML appears to be stripped out. Will try surrounding in comment characters.

- Saish



</jbpm-context>





</jbpm-configuration>

-->
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2. Re: Hibernate TransientObjectException on JbpmContext Initia

aguizar Jun 19, 2006 9:34 PM (in response to saish)

The jBPM O-R mappings do not cascade persistence operations from instances to definitions, because it assumes the user has already saved the definitions.

Having Hibernate complain about a node being transient is a clear indication that the process definition is not saved yet. You must either call JbpmContext.deployProcessDefinition() or GraphSession.saveProcessDefinition(). The difference lies in the former assigning a version number.
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3. Re: Hibernate TransientObjectException on JbpmContext Initia

saish Jun 20, 2006 9:04 AM (in response to saish)

Thank you so much Alex!! That did the trick nicely! Looking back, I did see that step was in the documentation, and I somehow missed it. This definitely made my Tuesday morning!

The method itself lead me to a few other questions: how is JbpmContext.deployProcessDefinition() normally used? I am assuming it only needs to be called once per process definition deployment. Do people run an ant task as part of a buld? Ad hoc? Is there any harm in calling it multiple times?

Thanks!

- Saish
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