[jboss-user] [JBoss jBPM] - Re: hook the JBPM engine to JBOSS

[yairfr]

1. thanks for the answer
2. i wrote a hook function :

  | 	protected void hookFunc()
  | 	{
  | 		logger.debug("hookFunc::Start");
  | 		conf = JbpmConfiguration.getInstance();
  | 		context = conf.createJbpmContext();
  | 	    graphSession = context.getGraphSession();
  | 	    //context.close();
  | 	    logger.debug("hookFunc::End");
  | 	}
  | 
it run ok , but both option : with context.close() or without it 
resulted in an error when i tried to run continue or start a process .
without the close it gives this error :

  | 09:49:19,039 INFO  [STDOUT] 09:49:18,367 [Thread-25] DEBUG Log4JLogger : adding converter 'D', 'org.jbpm.context.exe.converter.DoubleToStringConverter'
  | 09:49:19,164 INFO  [STDOUT] 09:49:19,164 [Thread-25] DEBUG Log4JLogger : adding converter 'C', 'org.jbpm.context.exe.converter.CharacterToStringConverter'
  | 09:49:19,179 INFO  [STDOUT] 09:49:19,179 [Thread-25] DEBUG Log4JLogger : adding converter 'B', 'org.jbpm.context.exe.converter.BooleanToStringConverter'
  | 09:49:19,179 INFO  [STDOUT] 09:49:19,179 [Thread-25] DEBUG Log4JLogger : adding converter 'Y', 'org.jbpm.context.exe.converter.BytesToByteArrayConverter'
  | 09:49:19,179 INFO  [STDOUT] 09:49:19,179 [Thread-25] DEBUG Log4JLogger : adding converter 'A', 'org.jbpm.context.exe.converter.DateToLongConverter'
  | 09:49:19,195 INFO  [STDOUT] 09:49:19,195 [Thread-25] DEBUG Log4JLogger : adding converter 'R', 'org.jbpm.context.exe.converter.SerializableToByteArrayConverter'
  | 09:49:19,211 INFO  [STDOUT] 09:49:19,211 [Thread-25] DEBUG Log4JLogger : adding converter 'I', 'org.jbpm.context.exe.converter.IntegerToLongConverter'
  | 09:49:19,211 INFO  [STDOUT] 09:49:19,211 [Thread-25] DEBUG Log4JLogger : adding converter 'H', 'org.jbpm.context.exe.converter.ShortToLongConverter'
  | 09:49:19,211 INFO  [STDOUT] 09:49:19,211 [Thread-25] DEBUG Log4JLogger : adding converter 'G', 'org.jbpm.context.exe.converter.FloatToDoubleConverter'
  | 09:49:19,226 INFO  [STDOUT] 09:49:19,226 [Thread-25] DEBUG Log4JLogger : adding converter 'F', 'org.jbpm.context.exe.converter.FloatToStringConverter'
  | 09:49:19,242 INFO  [STDOUT] 09:49:19,226 [Thread-25] DEBUG Log4JLogger : adding converter 'E', 'org.jbpm.context.exe.converter.ByteToLongConverter'
  | 09:49:19,273 INFO  [STDOUT] 09:49:19,273 [Thread-25] DEBUG LogUtil : RequestsHandler:writeTasks():End
  | 09:49:19,273 INFO  [STDOUT] 09:49:19,273 [Thread-25] DEBUG Log4JLogger : executing default save operations
  | 09:49:19,304 INFO  [STDOUT] 09:49:19,273 [Thread-25] DEBUG Log4JLogger : saving process instance
  | 09:49:19,320 INFO  [STDOUT] 09:49:19,320 [Thread-25] DEBUG Log4JLogger : ignoring logs.  no logging service available.
  | 09:49:19,320 INFO  [STDOUT] 09:49:19,320 [Thread-25] DEBUG Log4JLogger : cascading save of 'org.jbpm.graph.exe.ProcessInstance at 1a22e94'
  | 09:49:19,320 INFO  [STDOUT] 09:49:19,320 [Thread-25] DEBUG Log4JLogger : closing JbpmContext
  | 09:49:19,320 INFO  [STDOUT] 09:49:19,320 [Thread-25] DEBUG Log4JLogger : closing service 'persistence': org.jbpm.persistence.db.DbPersistenceService at 13beb64
  | 09:49:19,320 INFO  [STDOUT] 09:49:19,320 [Thread-25] DEBUG Log4JLogger : committing hibernate transaction
  | 09:49:19,367 INFO  [STDOUT] Hibernate: insert into JBPM_TASKINSTANCE (NAME_, DESCRIPTION_, ACTORID_, CREATE_, START_, END_, DUEDATE_, PRIORITY_, ISCANCELLED_, ISSUSPENDED_, ISOPEN_, ISSIGNALLING_, ISBLOCKING_, TASK_, TOKEN_, SWIMLANINSTANCE_, TASKMGMTINSTANCE_, CLASS_, ID_) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 'T', ?)
  | 09:49:19,383 INFO  [STDOUT] Hibernate: update JBPM_TASKINSTANCE set NAME_=?, DESCRIPTION_=?, ACTORID_=?, CREATE_=?, START_=?, END_=?, DUEDATE_=?, PRIORITY_=?, ISCANCELLED_=?, ISSUSPENDED_=?, ISOPEN_=?, ISSIGNALLING_=?, ISBLOCKING_=?, TASK_=?, TOKEN_=?, SWIMLANINSTANCE_=?, TASKMGMTINSTANCE_=? where ID_=?
  | 09:49:19,398 INFO  [STDOUT] Hibernate: update JBPM_TOKEN set VERSION_=?, NAME_=?, START_=?, END_=?, NODEENTER_=?, NEXTLOGINDEX_=?, ISABLETOREACTIVATEPARENT_=?, ISTERMINATIONIMPLICIT_=?, ISSUSPENDED_=?, NODE_=?, PROCESSINSTANCE_=?, PARENT_=?, SUBPROCESSINSTANCE_=? where ID_=? and VERSION_=?
  | 09:49:19,398 INFO  [STDOUT] Hibernate: update JBPM_TASKINSTANCE set NAME_=?, DESCRIPTION_=?, ACTORID_=?, CREATE_=?, START_=?, END_=?, DUEDATE_=?, PRIORITY_=?, ISCANCELLED_=?, ISSUSPENDED_=?, ISOPEN_=?, ISSIGNALLING_=?, ISBLOCKING_=?, TASK_=?, TOKEN_=?, SWIMLANINSTANCE_=?, TASKMGMTINSTANCE_=? where ID_=?
  | 09:49:19,414 INFO  [STDOUT] 09:49:19,398 [Thread-25] DEBUG BasicResourcePool : trace com.mchange.v2.resourcepool.BasicResourcePool at 1ce4a29 [managed: 5, unused: 3, excluded: 0] (e.g. com.mchange.v2.c3p0.impl.NewPooledConnection at 650ddb)
  | 09:49:19,414 INFO  [STDOUT] 09:49:19,414 [Thread-25] DEBUG Log4JLogger : closing hibernate session
  | 09:49:19,414 INFO  [STDOUT] 09:49:19,414 [Thread-25] DEBUG LogUtil : RequestsHandler:continueProcess():End
  | 09:49:23,117 INFO  [STDOUT] 09:49:23,117 [Thread-24] DEBUG LogUtil : Read 1 records from TASKS table
  | 09:49:49,695 ERROR [STDERR] Exception in thread "Thread-23" 
  | 09:49:49,695 ERROR [STDERR] java.lang.NullPointerException
  | 09:49:49,695 ERROR [STDERR] 	at java.lang.Class.forName0(Native Method)
  | 09:49:49,695 ERROR [STDERR] 	at java.lang.Class.forName(Unknown Source)
  | 09:49:49,695 ERROR [STDERR] 	at com.mts.WorkFlow.ProvisionHandler.createProvisionObject(ProvisionHandler.java:78)
  | 09:49:49,695 ERROR [STDERR] 	at com.mts.WorkFlow.ProvisionHandler.provision(ProvisionHandler.java:67)
  | 09:49:49,695 ERROR [STDERR] 	at com.mts.WorkFlow.ProvisionHandler.handleRequest(ProvisionHandler.java:25)
  | 09:49:49,695 ERROR [STDERR] 	at com.mts.WorkFlow.WorkerThread.run(WorkerThread.java:30)
  | 
do u have any idea why ?
i am preety sure it is somehow connected to the transaction.

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