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when i deploy,i get a java.lang.NullPointerException

Question asked by kendrick1222 on Jun 14, 2016
Latest reply on Jun 14, 2016 by kendrick1222
this is my code:
ProcessEngineConfiguration configuraion = ProcessEngineConfiguration.createStandaloneProcessEngineConfiguration();
      RepositoryService repositoryService = configuraion.getRepositoryService();
      DeploymentBuilder builder = repositoryService.createDeployment().addClasspathResource("helloWord/HelloWord.bpmn").addClasspathResource("helloWord/HelloWord.png");
      builder.deploy();

this code is being excute at "builder.deploy();" there have a i get a java.lang.NullPointerException,the errror message is:
java.lang.NullPointerException
   at org.activiti.engine.impl.RepositoryServiceImpl.deploy(RepositoryServiceImpl.java:79)
   at org.activiti.engine.impl.repository.DeploymentBuilderImpl.deploy(DeploymentBuilderImpl.java:156)
   at env.EnvTest.deployProcess(EnvTest.java:36)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:606)
   at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
   at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
   at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
   at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
   at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
   at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
   at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
   at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
   at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
   at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
   at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
   at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
   at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

please help me! i have no idear

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