Thanks for your demo as follow link. http://www.inze.be/andries/2009/05/16/demo-on-spring-integration-with-jbpm4/ I have faced the problem in using it. Almost all of it are working fine. But when i try to undeploy definition by repositoryService.deleteDeploymentCascade(deploymentId) method, Bellow error is caused. I need your advice. Your help will be appreciate and helpfull me. Thanks, Kwangcheol 10:01:53,371 FIN | [DeleteDeploymentCmd] deleting deployment 19 Hibernate: select deployment0_.DBID_ as DBID1_19_0_, deployment0_.NAME_ as NAME2_19_0_, deployment0_.TIMESTAMP_ as TIMESTAMP3_19_0_, deployment0_.STATE_ as STATE4_19_0_ from JBPM4_DEPLOYMENT deployment0_ where deployment0_.DBID_=? Hibernate: select resources0_.DEPLOYMENT_ as DEPLOYMENT4_1_, resources0_.DBID_ as DBID1_1_, resources0_.NAME_ as NAME5_1_, resources0_.DBID_ as DBID1_23_0_, resources0_.DBVERSION_ as DBVERSION2_23_0_, resources0_.BLOB_VALUE_ as BLOB3_23_0_ from JBPM4_LOB resources0_ where resources0_.DEPLOYMENT_=? Hibernate: select objectprop0_.DEPLOYMENT_ as DEPLOYMENT2_1_, objectprop0_.DBID_ as DBID1_1_, objectprop0_.DBID_ as DBID1_20_0_, objectprop0_.DEPLOYMENT_ as DEPLOYMENT2_20_0_, objectprop0_.OBJNAME_ as OBJNAME3_20_0_, objectprop0_.KEY_ as KEY4_20_0_, objectprop0_.STRINGVAL_ as STRINGVAL5_20_0_, objectprop0_.LONGVAL_ as LONGVAL6_20_0_ from JBPM4_DEPLOYPROP objectprop0_ where objectprop0_.DEPLOYMENT_=? ### EXCEPTION ########################################### 10:01:53,387 INF | [DefaultCommandService] exception while executing command org.jbpm.pvm.internal.cmd.DeleteDeploymentCmd@a37c6a java.lang.NullPointerException at java.util.Hashtable.put(Hashtable.java:396) at org.jbpm.pvm.internal.repository.RepositoryCacheImpl.set(RepositoryCacheImpl.java:45) at org.jbpm.pvm.internal.cmd.DeleteDeploymentCmd.execute(DeleteDeploymentCmd.java:92) at org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42) at org.jbpm.pvm.internal.tx.StandardTransactionInterceptor.execute(StandardTransactionInterceptor.java:54) at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:54) at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55) at org.jbpm.pvm.internal.repository.RepositoryServiceImpl.deleteDeployment(RepositoryServiceImpl.java:66) at com.tfsm.b3mb.bpm.business.UndeployServiceImpl.deleteDeployment(UndeployServiceImpl.java:30) at com.tfsm.b3mb.bpm.business.test.UndeployServiceTest.testDeleteDeployment(UndeployServiceTest.java:97) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41) at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) at org.junit.runners.ParentRunner.run(ParentRunner.java:220) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) ### EXCEPTION ########################################### View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4248290#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...