[jBPM Users] - Re: [JBPM4 Error]Getting error while 2 tasks are created on
by nilspreusker
I've verified this problem, it occurs when two subsequent tasks are both assigned to the same person and the second one contains a notification node. When the first task is completed, the MailListener will use the findTaskByExecution method of DbSessionImpl.java, which in turn queries the database for tasks by execution. This causes the NonUniqueResult exception, as there are more tasks associated with the execution. See test case below:
=== Environment ==============================
- jBPM Version : 4.1
- Database : MySQL 5 or HSQL
- JDK : Java 6 on Mac OS X Snow Leopard
- Container : java version "1.6.0_15"
Java(TM) SE Runtime Environment (build 1.6.0_15-b03-219)
Java HotSpot(TM) 64-Bit Server VM (build 14.1-b02-90, mixed mode)
- Configuration : standard config file
- Libraries : standard jbpm setup
=== Process ==================================
<?xml version="1.0" encoding="UTF-8"?>
|
| <process name="MultipleTasks" xmlns="http://jbpm.org/4.0/jpdl">
| <start name="start1" g="38,16,48,48">
| <transition name="to task1" to="task1" g="-48,-19"/>
| </start>
| <task name="task1" g="16,96,92,52" assignee="johndoe">
| <transition name="to task2" to="task2" g="-48,-19"/>
| </task>
| <task name="task2" g="16,180,92,52" assignee="johndoe">
| <notification/>
| <transition name="to end1" to="end1" g="-46,-19"/>
| </task>
| <end name="end1" g="38,264,48,48"/>
|
| </process>
=== API ===================================
package org.jbpm.examples.task.multiple;
|
| import java.util.List;
|
| import org.jbpm.api.task.Task;
| import org.jbpm.test.JbpmTestCase;
| import org.subethamail.wiser.Wiser;
|
| public class MultipleTasksTest extends JbpmTestCase {
|
| Wiser wiser = new Wiser();
| String deploymentId;
|
| protected void setUp() throws Exception {
| super.setUp();
|
| // deploy the process definition
| deploymentId = repositoryService.createDeployment()
| .addResourceFromClasspath(
| "org/jbpm/examples/task/multiple/process.jpdl.xml")
| .deploy();
|
| // create actor
| identityService.createUser("johndoe", "John", "Doe", "john@doe");
|
| // start mail server
| wiser.setPort(2525);
| wiser.start();
| }
|
| protected void tearDown() throws Exception {
| // stop mail server
| wiser.stop();
| repositoryService.deleteDeploymentCascade(deploymentId);
| super.tearDown();
| }
|
| public void testOltWorkflow() {
| executionService.startProcessInstanceByKey("MultipleTasks");
|
| List<Task> taskList = taskService.findPersonalTasks("johndoe");
| assertEquals(1, taskList.size());
| Task task = taskList.get(0);
| assertEquals("task1", task.getName());
| assertEquals("johndoe", task.getAssignee());
|
| // submit the task
| taskService.completeTask(task.getId(), "to task2"); /*This is where it goes wrong...*/
|
| // verify that the next task is active and has been assigned to
| // 'johndoe'
| taskList = taskService.findPersonalTasks("johndoe");
| assertEquals(1, taskList.size());
| task = taskList.get(0);
| assertEquals("task2", task.getName());
| assertEquals("johndoe", task.getAssignee());
| }
|
| }
=== Stacktrace ==============================
org.hibernate.NonUniqueResultException: query did not return a unique result: 2
at org.hibernate.impl.AbstractQueryImpl.uniqueElement(AbstractQueryImpl.java:844)
at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:835)
at org.jbpm.pvm.internal.hibernate.DbSessionImpl.findTaskByExecution(DbSessionImpl.java:383)
at org.jbpm.jpdl.internal.activity.MailListener.notify(MailListener.java:50)
at org.jbpm.pvm.internal.model.op.ExecuteEventListener.perform(ExecuteEventListener.java:81)
at org.jbpm.pvm.internal.model.ExecutionImpl.performAtomicOperationSync(ExecutionImpl.java:637)
at org.jbpm.pvm.internal.model.ExecutionImpl.performAtomicOperation(ExecutionImpl.java:597)
at org.jbpm.pvm.internal.model.ExecutionImpl.signal(ExecutionImpl.java:398)
at org.jbpm.pvm.internal.model.ExecutionImpl.signal(ExecutionImpl.java:384)
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:597)
at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
at org.jbpm.pvm.internal.model.ExecutionImpl_$$_javassist_4.signal(ExecutionImpl_$$_javassist_4.java)
at org.jbpm.pvm.internal.task.TaskImpl.complete(TaskImpl.java:194)
at org.jbpm.pvm.internal.cmd.CompleteTaskCmd.execute(CompleteTaskCmd.java:60)
at org.jbpm.pvm.internal.cmd.CompleteTaskCmd.execute(CompleteTaskCmd.java:32)
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:46)
at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55)
at org.jbpm.pvm.internal.svc.TaskServiceImpl.completeTask(TaskServiceImpl.java:96)
at org.jbpm.examples.task.multiple.MultipleTasksTest.testOltWorkflow(MultipleTasksTest.java:47)
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:597)
at junit.framework.TestCase.runTest(TestCase.java:164)
at org.jbpm.test.BaseJbpmTestCase.runTest(BaseJbpmTestCase.java:80)
at junit.framework.TestCase.runBare(TestCase.java:130)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:120)
at junit.framework.TestSuite.runTest(TestSuite.java:230)
at junit.framework.TestSuite.run(TestSuite.java:225)
at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
=== Debug logs ==============================
=== Problem description =========================
Problem occurs when two subsequent tasks are both assigned to the same person and the second one contains a notification node
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16 years, 6 months
[JBoss Web Services Users] - Ears sharing jars
by neillott
Hi,
I have one jboss instance running jboss 5.1 with webservices Version: jbossws-native-3.2.0.GA.
In this instance I deploy 6 ears all of which have an interface that specifies something like this
@WebService
@SOAPBinding (
style = SOAPBinding.Style.DOCUMENT,
use = SOAPBinding.Use.LITERAL,
parameterStyle = SOAPBinding.ParameterStyle.WRAPPED
)
public interface OnDemand
{
public void method1();
...
}
I then implement this interface.
When I deploy the ear, the ear contains the following:
[neil@flicker main ondemand]$ jar -tvf generated/server/ear/ondemand-5.2.3.ear
0 Tue Oct 27 10:15:40 MDT 2009 META-INF/
256 Tue Oct 27 10:15:38 MDT 2009 META-INF/MANIFEST.MF
0 Tue Oct 27 10:15:40 MDT 2009 lib/
358273 Tue Oct 27 10:15:40 MDT 2009 lib/antlr-2.7.2.jar
73425 Tue Oct 27 10:15:38 MDT 2009 lib/avalon-framework-4.1.5.jar
321201 Tue Oct 27 10:15:40 MDT 2009 lib/backport-util-concurrent-60-3.1.jar
595558 Tue Oct 27 10:15:38 MDT 2009 lib/catalogsif-5.2.3.jar
121757 Tue Oct 27 10:15:40 MDT 2009 lib/commons-dbcp-1.2.2.jar
96067 Tue Oct 27 10:15:38 MDT 2009 lib/commons-pool-1.5.1.jar
727837 Tue Oct 27 10:15:40 MDT 2009 lib/coreif-5.2.3.jar
632663 Tue Oct 27 10:15:38 MDT 2009 lib/dbif-5.2.3.jar
1059115 Tue Oct 27 10:15:40 MDT 2009 lib/isa-1.4.4.jar
88778 Tue Oct 27 10:15:40 MDT 2009 lib/isautilsif-5.2.3.jar
5750674 Tue Oct 27 10:15:38 MDT 2009 lib/jacorb-2.3.2.jar
802216 Tue Oct 27 10:15:38 MDT 2009 lib/jakarta-poi-2.5.1.jar
89967 Tue Oct 27 10:15:38 MDT 2009 lib/jboss-jaxb-api-5.1.0.GA.jar
50570 Tue Oct 27 10:15:40 MDT 2009 lib/jbossws-jaxws-5.1.0.GA.jar
534827 Tue Oct 27 10:15:40 MDT 2009 lib/joda-time-1.6.jar
391834 Tue Oct 27 10:15:40 MDT 2009 lib/log4j-1.2.15.jar
86165 Tue Oct 27 10:15:40 MDT 2009 lib/logkit-1.2.jar
123874 Tue Oct 27 10:15:40 MDT 2009 lib/menumanagerif-5.2.3.jar
451525 Tue Oct 27 10:15:40 MDT 2009 lib/ondemandif-5.2.3.jar
1556269 Tue Oct 27 10:15:40 MDT 2009 lib/oracle-driver-10.2.0.4.jar
23445 Tue Oct 27 10:15:38 MDT 2009 lib/slf4j-1.5.8.jar
9679 Tue Oct 27 10:15:40 MDT 2009 lib/slf4j-log4j12-1.5.8.jar
8047 Tue Oct 27 10:15:38 MDT 2009 lib/ws-coreif-5.2.3.jar
26180 Tue Oct 27 10:15:40 MDT 2009 lib/wsif-5.2.3.jar
9336 Tue Oct 27 10:15:38 MDT 2009 ondemand-ejb-5.2.3.jar
When I deploy only this ear for example, JBoss immediately figures out that I have a webservice and does everything right. I'm able to access my webservice with no problem.
If I deploy multiple ears and say they share a jar like this:
451525 Tue Oct 27 10:15:40 MDT 2009 lib/ondemandif-5.2.3.jar
But then let's say one ear has
451525 Tue Oct 27 10:15:40 MDT 2009 lib/ondemandif-5.2.3.jar
And the other ear has
451525 Tue Oct 27 10:15:40 MDT 2009 lib/ondemandif-5.2.4.jar
Whichever ear gets deployed and used first will have its classes loaded from its ondemandif jar.
So I tried adding a jboss-app.xml to my META-INF directory in my ear that looks like this:
<jboss-app>
<loader-repository>
com.mystrotv:loader=ondemandif-5.2.3.jar
<loader-repository-config>java2ParentDelegaton=false</loader-repository-config>
</loader-repository>
</jboss-app>
But then I get this error and my webservice won't load
DEPLOYMENTS IN ERROR:
Deployment "vfszip:/usr/local/mystro/jboss/server/mas-ws/deploy/ondemand-5.2.3.ear/" is in error due to the following reason(s): java.lang.RuntimeException: Bean Class com.twc.atgw.server.ws.ondemand.OnDemandImpl has no local, webservice, or remote interfaces defined and does not implement at least one business interface: OnDemandImpl
at org.jboss.deployers.plugins.deployers.DeployersImpl.checkComplete(DeployersImpl.java:993)
at org.jboss.deployers.plugins.deployers.DeployersImpl.checkComplete(DeployersImpl.java:939)
at org.jboss.deployers.plugins.main.MainDeployerImpl.checkComplete(MainDeployerImpl.java:873)
at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.checkComplete(MainDeployerAdapter.java:128)
at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:369)
at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:255)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
However, my webservice loads fine if I don't include this xml file. My intention was to isolate the jars inside the ear so they are not shared across the webservice container. My understanding was that this would accomplish that:
<loader-repository-config>java2ParentDelegaton=false</loader-repository-config>
Do I need to somehow specify my webservice annotated class in the jboss-app.xml as well? Anyone has any hints that might help?
Thanks,
Neil
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16 years, 6 months