8:58 a.m.
Hi,
I have solved the previous datasource error I was ghetting in my JBPM application---thanks
to you all.But now I am getting a new error.
The server console log is as follows:
19:15:44,079 DEBUG [DefaultSaveOrUpdateEventListener] saving transient instance
19:15:44,079 DEBUG [AbstractBatcher] about to open PreparedStatement (open Prepa
redStatements: 0, globally: 0)
19:15:44,079 DEBUG [SQL]
select
hibernate_sequence.nextval
from
dual
19:15:44,079 INFO [STDOUT] Hibernate:
select
hibernate_sequence.nextval
from
dual
19:15:44,079 DEBUG [AbstractBatcher] preparing statement
19:15:44,079 DEBUG [SequenceGenerator] Sequence identifier generated: 125
19:15:44,079 DEBUG [AbstractBatcher] about to close PreparedStatement (open Prep
aredStatements: 1, globally: 1)
19:15:44,079 DEBUG [AbstractBatcher] closing statement
19:15:44,079 DEBUG [AbstractSaveEventListener] generated identifier: 125, using
strategy: org.hibernate.id.SequenceGenerator
19:15:44,079 DEBUG [AbstractSaveEventListener] saving [org.jbpm.context.def.Vari
ableAccess#125]
19:15:44,079 DEBUG [CascadingAction] cascading to saveOrUpdate: org.jbpm.context
.def.VariableAccess
19:15:44,095 DEBUG [IdentifierValue] id unsaved-value: 0
19:15:44,095 DEBUG [AbstractSaveEventListener] transient instance of: org.jbpm.c
ontext.def.VariableAccess
19:15:44,095 DEBUG [DefaultSaveOrUpdateEventListener] saving transient instance
19:15:44,095 DEBUG [AbstractBatcher] about to open PreparedStatement (open Prepa
redStatements: 0, globally: 0)
19:15:44,095 DEBUG [SQL]
select
hibernate_sequence.nextval
from
dual
19:15:44,095 INFO [STDOUT] Hibernate:
select
hibernate_sequence.nextval
from
dual
19:15:44,095 DEBUG [AbstractBatcher] preparing statement
19:15:44,095 DEBUG [SequenceGenerator] Sequence identifier generated: 126
19:15:44,095 DEBUG [AbstractBatcher] about to close PreparedStatement (open Prep
aredStatements: 1, globally: 1)
19:15:44,095 DEBUG [AbstractBatcher] closing statement
19:15:44,095 DEBUG [AbstractSaveEventListener] generated identifier: 126, using
strategy: org.hibernate.id.SequenceGenerator
19:15:44,095 DEBUG [AbstractSaveEventListener] saving [org.jbpm.context.def.Vari
ableAccess#126]
19:15:44,095 DEBUG [Cascade] done cascade ACTION_SAVE_UPDATE for collection: org
.jbpm.taskmgmt.def.TaskController.variableAccesses
19:15:44,095 DEBUG [Cascade] done processing cascade ACTION_SAVE_UPDATE for: org
.jbpm.taskmgmt.def.TaskController
19:15:44,095 DEBUG [Cascade] done processing cascade ACTION_SAVE_UPDATE for: org
.jbpm.taskmgmt.def.Task
19:15:44,095 DEBUG [Cascade] processing cascade ACTION_SAVE_UPDATE for: org.jbpm
.taskmgmt.def.Task
19:15:44,095 DEBUG [Cascade] done processing cascade ACTION_SAVE_UPDATE for: org
.jbpm.taskmgmt.def.Task
19:15:44,095 DEBUG [Cascade] done processing cascade ACTION_SAVE_UPDATE for: org
.jbpm.taskmgmt.def.TaskMgmtDefinition
19:15:44,095 DEBUG [Cascade] processing cascade ACTION_SAVE_UPDATE for: org.jbpm
.taskmgmt.def.TaskMgmtDefinition
19:15:44,111 DEBUG [Cascade] done processing cascade ACTION_SAVE_UPDATE for: org
.jbpm.taskmgmt.def.TaskMgmtDefinition
19:15:44,111 DEBUG [Cascade] done cascade ACTION_SAVE_UPDATE for collection: org
.jbpm.graph.def.ProcessDefinition.definitions
19:15:44,111 DEBUG [Cascade] done processing cascade ACTION_SAVE_UPDATE for: org
.jbpm.graph.def.ProcessDefinition
19:15:44,111 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
at com.sample.action.CallProcess.testCallProcess(CallProcess.java:28)
at org.apache.jsp.JSP.CallMethod_jsp._jspService(org.apache.jsp.JSP.Call
Method_jsp:58)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
.java:322)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
14)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFi
lter.java:81)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:178)
at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrinc
ipalValve.java:39)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit
yAssociationValve.java:159)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValv
e.java:59)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ssConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpo
int.java:527)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWor
kerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
19:15:48,673 DEBUG [JbpmContextInfo] creating jbpm context with service factorie
s '[message, scheduler, logging, persistence, authentication]'
19:15:48,689 DEBUG [StaticNotifier] woke up
19:15:49,501 DEBUG [JbpmContext] creating JbpmContext
19:15:49,501 DEBUG [DbPersistenceServiceFactory] creating persistence service
19:15:49,501 DEBUG [JbpmContextInfo] creating jbpm context with service factorie
s '[message, scheduler, logging, persistence, authentication]'
19:15:49,501 DEBUG [DbPersistenceService] creating hibernate session
19:15:49,501 DEBUG [JbpmContext] creating JbpmContext
19:15:49,501 DEBUG [SessionImpl] opened session at timestamp: 4984451684356096
19:15:49,501 DEBUG [DbPersistenceServiceFactory] creating persistence service
19:15:49,501 DEBUG [DbPersistenceService] beginning hibernate transaction
19:15:49,501 DEBUG [DbPersistenceService] creating hibernate session
19:15:49,501 DEBUG [JDBCTransaction] begin
19:15:49,501 DEBUG [SessionImpl] opened session at timestamp: 4984451684356097
19:15:49,501 DEBUG [ConnectionManager] opening JDBC connection
19:15:49,501 DEBUG [DbPersistenceService] beginning hibernate transaction
19:15:49,501 DEBUG [JDBCTransaction] current autocommit status: true
19:15:49,501 DEBUG [JDBCTransaction] begin
19:15:49,501 DEBUG [JDBCTransaction] disabling autocommit
19:15:49,501 DEBUG [ConnectionManager] opening JDBC connection
19:15:49,501 DEBUG [JDBCContext] after transaction begin
19:15:49,501 DEBUG [JDBCTransaction] current autocommit status: true
19:15:49,501 DEBUG [SchedulerThread] checking for timers
19:15:49,501 DEBUG [JDBCTransaction] disabling autocommit
19:15:49,517 DEBUG [SessionImpl] iterate:
select ti
from org.jbpm.scheduler.exe.Timer as ti
where ti.exception is null
and ti.isSuspended != true
order by ti.dueDate asc
19:15:49,517 DEBUG [JDBCContext] after transaction begin
19:15:49,517 DEBUG [QueryParameters] named parameters: {}
19:15:49,517 DEBUG [SessionImpl] iterate:
select message
from org.jbpm.msg.Message as message
where message.destination = :destination
and message.isSuspended != true
and message.exception is null
19:15:49,517 DEBUG [QueryTranslatorImpl] compile() : The query is already compil
ed, skipping...
19:15:49,517 DEBUG [QueryParameters] named parameters: {destination=CMD_EXECUTOR
}
19:15:49,517 DEBUG [AbstractBatcher] about to open PreparedStatement (open Prepa
redStatements: 0, globally: 0)
19:15:49,517 DEBUG [QueryTranslatorImpl] compile() : The query is already compil
ed, skipping...
19:15:49,517 DEBUG [SQL]
/* named HQL query SchedulerSession.findTimersByDueDate */ select
timer0_.ID_ as col_0_0_
from
JBPM_TIMER timer0_
where
(
timer0_.EXCEPTION_ is null
)
and timer0_.ISSUSPENDED_<>1
order by
timer0_.DUEDATE_ asc
19:15:49,517 DEBUG [AbstractBatcher] about to open PreparedStatement (open Prepa
redStatements: 0, globally: 1)
19:15:49,517 INFO [STDOUT] Hibernate:
/* named HQL query SchedulerSession.findTimersByDueDate */ select
timer0_.ID_ as col_0_0_
from
JBPM_TIMER timer0_
where
(
timer0_.EXCEPTION_ is null
)
and timer0_.ISSUSPENDED_<>1
order by
timer0_.DUEDATE_ asc
19:15:49,517 DEBUG [SQL]
/* named HQL query MessagingSession.findMessages */ select
message0_.ID_ as col_0_0_
from
JBPM_MESSAGE message0_
where
message0_.DESTINATION_=?
and message0_.ISSUSPENDED_<>1
and (
message0_.EXCEPTION_ is null
)
19:15:49,532 DEBUG [AbstractBatcher] preparing statement
19:15:49,532 INFO [STDOUT] Hibernate:
/* named HQL query MessagingSession.findMessages */ select
message0_.ID_ as col_0_0_
from
JBPM_MESSAGE message0_
where
message0_.DESTINATION_=?
and message0_.ISSUSPENDED_<>1
and (
message0_.EXCEPTION_ is null
)
19:15:49,532 DEBUG [AbstractBatcher] about to open ResultSet (open ResultSets: 0
, globally: 0)
19:15:49,532 DEBUG [AbstractBatcher] preparing statement
19:15:49,532 DEBUG [IteratorImpl] exhausted results
19:15:49,532 DEBUG [Loader] bindNamedParameters() CMD_EXECUTOR -> destination [1
]
19:15:49,532 DEBUG [IteratorImpl] closing iterator
19:15:49,532 DEBUG [StringType] binding 'CMD_EXECUTOR' to parameter: 1
19:15:49,532 DEBUG [AbstractBatcher] about to close ResultSet (open ResultSets:
1, globally: 1)
19:15:49,532 DEBUG [AbstractBatcher] about to close PreparedStatement (open Prep
aredStatements: 1, globally: 2)
19:15:49,532 DEBUG [AbstractBatcher] closing statement
19:15:49,548 DEBUG [JbpmContext] closing JbpmContext
19:15:49,548 DEBUG [AbstractBatcher] about to open ResultSet (open ResultSets: 0
, globally: 0)
19:15:49,548 DEBUG [Services] closing service 'persistence': org.jbpm.persistenc
e.db.DbPersistenceService@1c190a2
19:15:49,548 DEBUG [IteratorImpl] exhausted results
19:15:49,548 DEBUG [DbPersistenceService] committing hibernate transaction
19:15:49,548 DEBUG [IteratorImpl] closing iterator
19:15:49,548 DEBUG [JDBCTransaction] commit
19:15:49,548 DEBUG [AbstractBatcher] about to close ResultSet (open ResultSets:
1, globally: 1)
19:15:49,548 DEBUG [SessionImpl] automatically flushing session
19:15:49,548 DEBUG [AbstractBatcher] about to close PreparedStatement (open Prep
aredStatements: 1, globally: 1)
19:15:49,548 DEBUG [JDBCContext] before transaction completion
19:15:49,548 DEBUG [AbstractBatcher] closing statement
19:15:49,548 DEBUG [SessionImpl] before transaction completion
19:15:49,548 DEBUG [JbpmContext] closing JbpmContext
19:15:49,548 DEBUG [Services] closing service 'persistence': org.jbpm.persistenc
e.db.DbPersistenceService@feba21
19:15:49,548 DEBUG [JDBCTransaction] re-enabling autocommit
19:15:49,548 DEBUG [DbPersistenceService] committing hibernate transaction
19:15:49,548 DEBUG [JDBCTransaction] committed JDBC Connection
19:15:49,548 DEBUG [JDBCTransaction] commit
19:15:49,548 DEBUG [JDBCContext] after transaction completion
19:15:49,548 DEBUG [SessionImpl] automatically flushing session
19:15:49,548 DEBUG [ConnectionManager] aggressively releasing JDBC connection
19:15:49,548 DEBUG [JDBCContext] before transaction completion
19:15:49,548 DEBUG [ConnectionManager] closing JDBC connection [ (open PreparedS
tatements: 0, globally: 0) (open ResultSets: 0, globally: 0)]
19:15:49,548 DEBUG [SessionImpl] before transaction completion
19:15:49,548 DEBUG [SessionImpl] after transaction completion
19:15:49,548 DEBUG [DbPersistenceService] closing hibernate session
19:15:49,548 DEBUG [JDBCTransaction] re-enabling autocommit
19:15:49,548 DEBUG [SessionImpl] closing session
19:15:49,548 DEBUG [JDBCTransaction] committed JDBC Connection
19:15:49,548 DEBUG [ConnectionManager] connection already null in cleanup : no a
ction
19:15:49,548 DEBUG [JDBCContext] after transaction completion
19:15:49,548 DEBUG [ConnectionManager] aggressively releasing JDBC connection
19:15:49,548 DEBUG [ConnectionManager] closing JDBC connection [ (open PreparedS
tatements: 0, globally: 0) (open ResultSets: 0, globally: 0)]
19:15:49,564 DEBUG [SessionImpl] after transaction completion
19:15:49,564 DEBUG [DbPersistenceService] closing hibernate session
19:15:49,564 DEBUG [SessionImpl] closing session
19:15:49,564 DEBUG [ConnectionManager] connection already null in cleanup : no a
ction
19:15:49,564 DEBUG [Services] closing service 'message': org.jbpm.msg.db.DbMessa
geService@16dd645
19:15:49,564 DEBUG [CommandExecutorThread] waiting for more messages
19:15:49,564 DEBUG [StaticNotifier] going to wait for (CMD_EXECUTOR, java.lang.O
bject@586403)
The error in my Application window is as follows:
HTTP Status 500 -
--------------------------------------------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling
this request.
exception
org.apache.jasper.JasperException
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:370)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
root cause
java.lang.NullPointerException
com.sample.action.CallProcess.testCallProcess(CallProcess.java:28)
org.apache.jsp.JSP.CallMethod_jsp._jspService(org.apache.jsp.JSP.CallMethod_jsp:58)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5 logs.
The code in CallProcess class is :
package com.sample.action;
import junit.framework.TestCase;
import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.graph.exe.ProcessInstance;
import org.jbpm.graph.exe.Token;
import org.jbpm.JbpmContext;
import org.jbpm.JbpmConfiguration;
public class CallProcess extends TestCase{
public CallProcess(){}
public void testCallProcess(){
try{
JbpmConfiguration jbpmConfiguration =
JbpmConfiguration.parseResource("jbpm.cfg.xml");
//ProcessDefinition
processDefinition=ProcessDefinition.parseXmlResource("simple.par/processdefinition.xml");
//ProcessDefinition
processDefinition=ProcessDefinition.parseXmlResource("D:/jbpm-starters-kit-3.1.2/jbpm/src/process.examples/26thJuneProject/processes/simple/processdefinition.xml");
ProcessDefinition
processDefinition=ProcessDefinition.parseXmlResource("processdefinition.xml");
//System.out.println("processDefinition");
//System.out.println(processDefinition);
//parseResource("simple.par/processdefinition.xml");
JbpmContext jbpmContext = jbpmConfiguration.createJbpmContext();
//jbpmConfiguration.createSchema();
ProcessInstance processInstance=new ProcessInstance();
jbpmContext.deployProcessDefinition(processDefinition);
Token token=processInstance.getRootToken();
assertSame(processDefinition.getStartState(), token.getNode());
//assertSame(processDefinition.getNode("start"), token.getNode());
token.signal();
assertSame(processDefinition.getNode("first"), token.getNode());
token.signal();
/*assertSame(processDefinition.getNode("task2"), token.getNode());
token.signal();*/
assertSame(processDefinition.getNode("end"), token.getNode());
}finally{
}
}
/**
* @param args
*/
/*public static void main(String[] args) {
// TODO Auto-generated method stub
}*/
}
Thanks you all in anticipation.
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