topic Re: Why run Context.getCommandContex cause NullPointerException in Alfresco Archive

Why run Context.getCommandContex cause NullPointerException

kafeitu — Wed, 16 Nov 2011 14:55:54 GMT

these codes in method of Struts2 ActionTaskQuery taskQuery = taskService.createTaskQuery().processDefinitionKey("leave").taskCandidateUser(UserUtil.getCurrentUserId());List<Task> tasks = taskQuery.listPage(0, 10);for (Task task : tasks) { TaskEntity taskEntity = (TaskEntity) task; System.o

Re: Why run Context.getCommandContex cause NullPointerException

kafeitu — Wed, 16 Nov 2011 15:30:47 GMT

in module activiti-spring, I modify class CustomTaskAssignmentTest method testSetAssigneeThroughSpringService:


@Deployment
  public void testSetAssigneeThroughSpringService() {
    runtimeService.startProcessInstanceByKey("assigneeThroughSpringService", CollectionUtil.singletonMap("emp", "fozzie"));
    Task singleResult = taskService.createTaskQuery().taskAssignee("Kermit The Frog").singleResult();
    TaskEntity te = (TaskEntity)singleResult;
    System.out.println(te.getIdentityLinks());
    assertEquals(1, taskService.createTaskQuery().taskAssignee("Kermit The Frog").count());
  }

expcetion traces:


java.lang.NullPointerException
 at org.activiti.engine.impl.persistence.entity.TaskEntity.getIdentityLinks(TaskEntity.java:340)
 at org.activiti.spring.test.taskassignment.CustomTaskAssignmentTest.testSetAssigneeThroughSpringService(CustomTaskAssignmentTest.java:34)
 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:168)
 at org.activiti.engine.impl.test.PvmTestCase.runTest(PvmTestCase.java:75)
 at junit.framework.TestCase.runBare(TestCase.java:134)
 at org.activiti.engine.impl.test.AbstractActivitiTestCase.runBare(AbstractActivitiTestCase.java:89)
 at org.activiti.spring.impl.test.SpringActivitiTestCase.runBare(SpringActivitiTestCase.java:51)
 at junit.framework.TestResult$1.protect(TestResult.java:110)
 at junit.framework.TestResult.runProtected(TestResult.java:128)
 at junit.framework.TestResult.run(TestResult.java:113)
 at junit.framework.TestCase.run(TestCase.java:124)
 at junit.framework.TestSuite.runTest(TestSuite.java:232)
 at junit.framework.TestSuite.run(TestSuite.java:227)
 at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
 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)

Re: Why run Context.getCommandContex cause NullPointerException

kafeitu — Thu, 17 Nov 2011 01:32:41 GMT

and i try to run codes:


System.out.println(Context.getCommandContext());

result: null

who can help me ?

Re: Why run Context.getCommandContex cause NullPointerException

trademak — Thu, 17 Nov 2011 09:32:37 GMT

Hi,

Can you provide a unit test project, so I can reproduce the error message?

Best regards,

Re: Why run Context.getCommandContex cause NullPointerException

kafeitu — Thu, 17 Nov 2011 12:44:58 GMT

Hi,

Can you provide a unit test project, so I can reproduce the error message?

Best regards,

I used "activiti-spring-example" moudle of activiti, Test class rg.activiti.spring.test.taskassignment.CustomTaskAssignmentTest
please override method testSetAssigneeThroughSpringService


@Deployment
 public void testSetAssigneeThroughSpringService() {
  runtimeService.startProcessInstanceByKey("assigneeThroughSpringService",
    CollectionUtil.singletonMap("emp", "fozzie"));
  Task singleResult = taskService.createTaskQuery().taskAssignee("Kermit The Frog").singleResult();
  System.out.println(Context.getCommandContext());
  TaskEntity te = (TaskEntity) singleResult;
  System.out.println(te.getIdentityLinks());
  assertEquals(1, taskService.createTaskQuery().taskAssignee("Kermit The Frog").count());
 }

Re: Why run Context.getCommandContex cause NullPointerException

trademak — Thu, 17 Nov 2011 13:09:44 GMT

I see. the task assignee is kermit, not Kermit the frog.

Best regards,

Re: Why run Context.getCommandContex cause NullPointerException

kafeitu — Thu, 17 Nov 2011 13:20:18 GMT

I see. the task assignee is kermit, not Kermit the frog.

Best regards,

You may have misunderstood what I mean.


assertEquals(1, taskService.createTaskQuery().taskAssignee("Kermit The Frog").count());

you can test the new unit test that i upgraded:


@Deployment
 public void testSetAssigneeThroughSpringService() {
  runtimeService.startProcessInstanceByKey("assigneeThroughSpringService",
    CollectionUtil.singletonMap("emp", "fozzie"));
  Task singleResult = taskService.createTaskQuery().taskAssignee("Kermit The Frog").singleResult();
  TaskEntity te = (TaskEntity) singleResult;
  assertNotNull(te);
  assertNotNull(Context.getCommandContext());
  System.out.println(te.getIdentityLinks());
  assertEquals(1, taskService.createTaskQuery().taskAssignee("Kermit The Frog").count());
 }

A failure to execute when assertNotNull(Context.getCommandContext());