Comments on: jBPM4 Hello World

By: Gun

Gun — Wed, 21 Jul 2010 09:25:05 +0000

Hello Joram,
Your tutorial is perfect except that I’m facing a little problem while execution the application. Here is the console output. I hope you have a solution.
Hello World!
21 juil. 2010 10:05:46 org.hibernate.util.JDBCExceptionReporter logExceptions
ATTENTION: SQL Error: 1451, SQLState: 23000
21 juil. 2010 10:05:46 org.hibernate.util.JDBCExceptionReporter logExceptions
GRAVE: Cannot delete or update a parent row: a foreign key constraint fails (`jbpm/jbpm4_execution`, CONSTRAINT `FK_EXEC_INSTANCE` FOREIGN KEY (`INSTANCE_`) REFERENCES `jbpm4_execution` (`DBID_`))
21 juil. 2010 10:05:46 org.hibernate.event.def.AbstractFlushingEventListener performExecutions
GRAVE: Could not synchronize database state with session
org.hibernate.exception.ConstraintViolationException: could not delete: [org.jbpm.pvm.internal.model.ExecutionImpl#7]
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:94)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2569)
at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2725)
at org.hibernate.action.EntityDeleteAction.execute(EntityDeleteAction.java:97)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:172)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027)
at org.jbpm.pvm.internal.tx.HibernateSessionResource.prepare(HibernateSessionResource.java:56)
at org.jbpm.pvm.internal.tx.StandardTransaction.commit(StandardTransaction.java:107)
at org.jbpm.pvm.internal.tx.StandardTransaction.complete(StandardTransaction.java:64)
at org.jbpm.pvm.internal.tx.StandardTransactionInterceptor.execute(StandardTransactionInterceptor.java:61)
at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.executeInNewEnvironment(EnvironmentInterceptor.java:53)
at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:40)
at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55)
at org.jbpm.pvm.internal.svc.SkipInterceptor.execute(SkipInterceptor.java:43)
at org.jbpm.pvm.internal.svc.ExecutionServiceImpl.startProcessInstanceByKey(ExecutionServiceImpl.java:66)
at ma.gfit.jbpm.Test.main(Test.java:16)
Caused by: com.mysql.jdbc.exceptions.MySQLIntegrityConstraintViolationException: Cannot delete or update a parent row: a foreign key constraint fails (`jbpm/jbpm4_execution`, CONSTRAINT `FK_EXEC_INSTANCE` FOREIGN KEY (`INSTANCE_`) REFERENCES `jbpm4_execution` (`DBID_`))
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:931)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2941)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1623)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1715)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3249)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1268)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1541)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1455)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1440)
at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2551)
… 18 more
Exception in thread “main” org.hibernate.exception.ConstraintViolationException: could not delete: [org.jbpm.pvm.internal.model.ExecutionImpl#7]
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:94)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2569)
at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2725)
at org.hibernate.action.EntityDeleteAction.execute(EntityDeleteAction.java:97)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:172)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027)
at org.jbpm.pvm.internal.tx.HibernateSessionResource.prepare(HibernateSessionResource.java:56)
at org.jbpm.pvm.internal.tx.StandardTransaction.commit(StandardTransaction.java:107)
at org.jbpm.pvm.internal.tx.StandardTransaction.complete(StandardTransaction.java:64)
at org.jbpm.pvm.internal.tx.StandardTransactionInterceptor.execute(StandardTransactionInterceptor.java:61)
at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.executeInNewEnvironment(EnvironmentInterceptor.java:53)
at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:40)
at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55)
at org.jbpm.pvm.internal.svc.SkipInterceptor.execute(SkipInterceptor.java:43)
at org.jbpm.pvm.internal.svc.ExecutionServiceImpl.startProcessInstanceByKey(ExecutionServiceImpl.java:66)
at ma.gfit.jbpm.Test.main(Test.java:16)
Caused by: com.mysql.jdbc.exceptions.MySQLIntegrityConstraintViolationException: Cannot delete or update a parent row: a foreign key constraint fails (`jbpm/jbpm4_execution`, CONSTRAINT `FK_EXEC_INSTANCE` FOREIGN KEY (`INSTANCE_`) REFERENCES `jbpm4_execution` (`DBID_`))
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:931)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2941)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1623)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1715)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3249)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1268)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1541)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1455)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1440)
at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2551)

By: blogging to make money

blogging to make money — Mon, 12 Jul 2010 20:38:46 +0000

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By: Embedding JBPM 4.3 in a Grails 1.2.2 Application « IntelliGrape Blog

Embedding JBPM 4.3 in a Grails 1.2.2 Application « IntelliGrape Blog — Fri, 14 May 2010 18:15:32 +0000

[...] However, there were some very good resources on integrating JBPM with a spring application. I found Joram Barrez’s Hello World Example very helpful and was able to integrate using the following [...]

By: Chaitanya Desai

Chaitanya Desai — Fri, 16 Apr 2010 03:41:40 +0000

I get this exception when I try to run jbpm 4.3 sample codes :

0:34:18,759 INF | [DefaultCommandService] exception while executing command org.jbpm.pvm.internal.cmd.CheckDbCmd@861f24
org.jbpm.api.JbpmException: couldn’t instantiate hibernate configuration class org.hibernate.cfg.Configuration
at org.jbpm.pvm.internal.wire.descriptor.HibernateConfigurationDescriptor.construct(HibernateConfigurationDescriptor.java:64)
at org.jbpm.pvm.internal.wire.WireContext.construct(WireContext.java:469)
at org.jbpm.pvm.internal.wire.WireContext.create(WireContext.java:448)
at org.jbpm.pvm.internal.wire.WireContext.create(WireContext.java:437)
at org.jbpm.pvm.internal.wire.WireContext.get(WireContext.java:417)
at org.jbpm.pvm.internal.wire.WireContext.get(WireContext.java:327)
at org.jbpm.pvm.internal.wire.WireContext.get(WireContext.java:688)
at org.jbpm.pvm.internal.wire.descriptor.HibernateSessionFactoryDescriptor.construct(HibernateSessionFactoryDescriptor.java:57)
at org.jbpm.pvm.internal.wire.WireContext.construct(WireContext.java:469)
at org.jbpm.pvm.internal.wire.WireContext.create(WireContext.java:448)
at org.jbpm.pvm.internal.wire.WireContext.create(WireContext.java:437)
at org.jbpm.pvm.internal.wire.WireContext.get(WireContext.java:417)
at org.jbpm.pvm.internal.wire.WireContext.get(WireContext.java:327)
at org.jbpm.pvm.internal.wire.WireContext.get(WireContext.java:688)
at org.jbpm.pvm.internal.env.BasicEnvironment.get(BasicEnvironment.java:139)
at org.jbpm.pvm.internal.env.BasicEnvironment.get(BasicEnvironment.java:130)
at org.jbpm.pvm.internal.wire.descriptor.HibernateSessionDescriptor.construct(HibernateSessionDescriptor.java:63)
at org.jbpm.pvm.internal.wire.WireContext.construct(WireContext.java:469)
at org.jbpm.pvm.internal.wire.WireContext.create(WireContext.java:448)

……..

Caused by: java.lang.ExceptionInInitializerError
at org.hibernate.cfg.Configuration.reset(Configuration.java:201)
at org.hibernate.cfg.Configuration.(Configuration.java:220)
at org.hibernate.cfg.Configuration.(Configuration.java:224)
… 60 more
Caused by: java.lang.NullPointerException
at org.hibernate.util.ConfigHelper.getResourceAsStream(ConfigHelper.java:167)
at org.hibernate.cfg.Environment.(Environment.java:558)
… 63 more

Can you suggest how do I rectify this …

-Regards,

By: roberto

roberto — Tue, 30 Mar 2010 08:15:20 +0000

Does anyone have an example a little more complicated than HelloWorld to show me!
I am in difficulty in the use of jBPM.
I have seen examples on the official website but they are too little complex
my e-mail romodem@libero.it

By: Abhishek

Abhishek — Thu, 04 Mar 2010 13:42:25 +0000

Great Tutorial. I got the head start.

By: ali

ali — Wed, 13 Jan 2010 23:50:24 +0000

Thanks a lot, helped me to quickly use the processing engine! Now only if this was included in the official JBoss documentation.

By: Ganesh Gowtham

Ganesh Gowtham — Mon, 11 Jan 2010 07:25:30 +0000

Hi Joram ,

I want to install Jbpm Console(4.1) in Weblogic 10.3 .
Do you any links (or) doc which explains me in details how ti install JBPM in Weblogic ? as Ant build file lacks task for weblogic .

By: Joram

Joram — Mon, 28 Dec 2009 12:14:22 +0000

@Anand: the error is quite obvious, there is something wrong with your jbpm.hibernate.cfg.xml config.

@Tifr: No clue without a stacktrace, environment, etc. These kind of questions are better asked on the user forum, since they will benefit other users too.

@Anonymous: Try to use the latest version (4.2, very soon 4.3). A lot of things have changed in the meanwhile.

By: Anonymous

Anonymous — Wed, 16 Dec 2009 12:18:35 +0000

hi …..
i have been facing the problem with jbpm4.0 + jboss 5.0 + jdk 1.6

required help to solve this

…..

Dec 16, 2009 5:38:31 PM org.jbpm.internal.log.Jdk14Log info
[jbpm-deploy] INFO: exception while executing command org.jbpm.pvm.internal.cmd.DeployCmd@d3c69c
[jbpm-deploy] java.lang.NullPointerException
[jbpm-deploy] at org.jbpm.pvm.internal.repository.RepositorySessionImpl.deploy(RepositorySessionImpl.java:55)
[jbpm-deploy] at org.jbpm.pvm.internal.cmd.DeployCmd.execute(DeployCmd.java:46)
[jbpm-deploy] at org.jbpm.pvm.internal.cmd.DeployCmd.execute(DeployCmd.java:32)
[jbpm-deploy] at org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42)
[jbpm-deploy] at org.jbpm.pvm.internal.tx.StandardTransactionInterceptor.execute(StandardTransactionInterceptor.java:54)
[jbpm-deploy] at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:54)
[jbpm-deploy] at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55)
[jbpm-deploy] at org.jbpm.pvm.internal.repository.DeploymentImpl.deploy(DeploymentImpl.java:89)
[jbpm-deploy] at org.jbpm.pvm.internal.ant.JbpmDeployTask.deployFile(JbpmDeployTask.java:110)
[jbpm-deploy] at org.jbpm.pvm.internal.ant.JbpmDeployTask.execute(JbpmDeployTask.java:60)
[jbpm-deploy] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
[jbpm-deploy] at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
[jbpm-deploy] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[jbpm-deploy] at java.lang.reflect.Method.invoke(Method.java:597)
[jbpm-deploy] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
[jbpm-deploy] at org.apache.tools.ant.Task.perform(Task.java:348)
[jbpm-deploy] at org.apache.tools.ant.Target.execute(Target.java:357)
[jbpm-deploy] at org.apache.tools.ant.Target.performTasks(Target.java:385)
[jbpm-deploy] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
[jbpm-deploy] at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
[jbpm-deploy] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
[jbpm-deploy] at org.eclipse.ant.internal.ui.antsupport.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
[jbpm-deploy] at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
[jbpm-deploy] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:423)
[jbpm-deploy] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:137)