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blocking task in start-state does not block
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created by <a href="http://community.jboss.org/people/laszlovandenhoek">László van den Hoek</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/600666#600666">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,  I'm running into the problem that a blocking task in a start-state node does not prevent a token to proceed to the next node, but a "regular" blocking task in a task-node does. I'm using the jBPM 3.2 runtime included with the latest JBoss SOA-P 5.1.  The below JUnit test code illustrates the problem. There are two test cases; the only real difference is that the one tests a blocking start task and the other tests a blocking "regular" task. For me, the first test case fails but the second one succeeds. The way they are written, I would expect this to be the other way around.  I understand from {thread:id=390489} that creating a new ProcessInstance will not automatically create a TaskInstance for the task defined in the start-state, if any. While this strikes me as odd, I can accept that is the way things work. However, once I manually create the StartTaskInstance, I do expect it to block progress to the next node.  {code:java} import java.util.HashMap; import java.util.Map;  import junit.framework.TestCase;  import org.jbpm.graph.def.ProcessDefinition; import org.jbpm.graph.exe.ProcessInstance; import org.jbpm.taskmgmt.exe.TaskInstance; import org.junit.Before; import org.junit.Test;  public class JbpmTest extends TestCase {            private ProcessDefinition pd;            @Before      public void setUp() {           this.pd = ProcessDefinition.parseXmlString(                               "</p><p>" +                 "" +                                "     " +                "          " +                "          " +                "     " +                                "     " +                "          " +                "          " +                "     " +                                "     " +                                ""           );      }            @Test      public void testBlockingStartTask() {           ProcessInstance pi = pd.createProcessInstance();                      //I would have expected a task instance to have been created by now; I guess that's not how it works.           //assertEquals("expected task was not created", 1, pi.getTaskMgmtInstance().getTaskInstances().size());                      TaskInstance ti = pi.getTaskMgmtInstance().createStartTaskInstance();                      assertEquals("expected task was not created", 1, pi.getTaskMgmtInstance().getTaskInstances().size());           assertEquals("task has wrong name", "blocking task in start node", ti.getName());           assertTrue(ti.isBlocking());           assertTrue(ti.isStartTaskInstance());           assertTrue(pi.getTaskMgmtInstance().hasBlockingTaskInstances(pi.getRootToken()));                      try {                pi.getRootToken().signal();                fail("task that should be blocking nevertheless did not block");           } catch (IllegalStateException e) {                assertEquals("state changed despite blocking task", "start", pi.getRootToken().getNode().getName());           }                      assertEquals("start", pi.getRootToken().getNode().getName());                 }            @Test      public void testBlockingRegularTask() {           ProcessInstance pi = pd.createProcessInstance();                      assertEquals("start", pi.getRootToken().getNode().getName());           pi.signal(); //this ought to go wrong, but it doesn't (see previous test case)           assertEquals("task", pi.getRootToken().getNode().getName());                      assertEquals("expected task was not created", 1, pi.getTaskMgmtInstance().getTaskInstances().size());                      TaskInstance ti = pi.getTaskMgmtInstance().getTaskInstances().iterator().next();                      assertEquals("task has wrong name", "blocking task in task node", ti.getName());           assertTrue(ti.isBlocking());           assertFalse(ti.isStartTaskInstance());           assertTrue(pi.getTaskMgmtInstance().hasBlockingTaskInstances(pi.getRootToken()));                      try {                pi.getRootToken().signal();                fail("task that should be blocking nevertheless did not block");           } catch (IllegalStateException e) {                assertEquals("state changed despite blocking task", "task", pi.getRootToken().getNode().getName());           }                      assertEquals("task", pi.getRootToken().getNode().getName());            ti.end();                      assertEquals("end", pi.getRootToken().getNode().getName());                 }  } {code}  Any thoughts?  Thanks in advance!</p></div>
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