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  1. Glassfish EJB Remote Interface Multithreaded Application
  2. Thread-1
  3. LoginBeanRemote ejbClient = (LoginBeanRemote) new InitialContext().lookup("LoginBean");
  4. ejbClient.doSomething();
  5.  
  6. Thread-2
  7. LoginBeanRemote ejbClient = (LoginBeanRemote) new InitialContext().lookup("LoginBean");
  8. ejbClient.doSomethingDifferent();
  9.  
  10. SEVERE: java.lang.NullPointerException
  11. at com.mypackage.myclass.getListofOperators(LoginBean.java:270)
  12. at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  13. at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  14. at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  15. at java.lang.reflect.Method.invoke(Method.java:601)
  16. at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052)
  17. at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124)
  18. at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5366)
  19. at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:619)
  20. at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800)
  21. at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:571)
  22. at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doAround(SystemInterceptorProxy.java:162)
  23. at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:144)
  24. at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  25. at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  26. at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  27. at java.lang.reflect.Method.invoke(Method.java:601)
  28. at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:861)
  29. at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800)
  30. at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:370)
  31. at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5338)
  32. at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5326)
  33. at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:206)
  34. at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:79)
  35. at $Proxy180.getListofOperators(Unknown Source)
  36. at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  37. at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  38. at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  39. at java.lang.reflect.Method.invoke(Method.java:601)
  40. at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie.dispatchToMethod(ReflectiveTie.java:144)
  41. at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie._invoke(ReflectiveTie.java:174)
  42. at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatchToServant(CorbaServerRequestDispatcherImpl.java:528)
  43. at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatch(CorbaServerRequestDispatcherImpl.java:199)
  44. at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequestRequest(CorbaMessageMediatorImpl.java:1624)
  45. at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:1486)
  46. at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleInput(CorbaMessageMediatorImpl.java:990)
  47. at com.sun.corba.ee.impl.protocol.giopmsgheaders.RequestMessage_1_2.callback(RequestMessage_1_2.java:214)
  48. at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:742)
  49. at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.dispatch(CorbaMessageMediatorImpl.java:539)
  50. at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.doWork(CorbaMessageMediatorImpl.java:2324)
  51. at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.performWork(ThreadPoolImpl.java:497)
  52. at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:540)
  53.  
  54. SEVERE: at com.mypackage.myclass.getListofOperators(LoginBean.java:270)
  55. SEVERE: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  56. SEVERE: at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  57. SEVERE: at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  58. SEVERE: at java.lang.reflect.Method.invoke(Method.java:601)
  59. SEVERE: at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052)
  60. SEVERE: at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124)
  61. SEVERE: at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5366)
  62. SEVERE: at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:619)
  63. SEVERE: at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800)
  64. SEVERE: at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:571)
  65. SEVERE: at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doAround(SystemInterceptorProxy.java:162)
  66. SEVERE: at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:144)
  67. SEVERE: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  68. SEVERE: at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  69. SEVERE: at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  70. SEVERE: at java.lang.reflect.Method.invoke(Method.java:601)
  71. SEVERE: at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:861)
  72. SEVERE: at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800)
  73. SEVERE: at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:370)
  74. SEVERE: at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5338)
  75. SEVERE: at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5326)
  76. SEVERE: at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:206)
  77. SEVERE: at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:79)
  78. SEVERE: at $Proxy180.getListofOperators(Unknown Source)
  79. SEVERE: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  80. SEVERE: at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  81. SEVERE: at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  82. SEVERE: at java.lang.reflect.Method.invoke(Method.java:601)
  83. SEVERE: at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie.dispatchToMethod(ReflectiveTie.java:144)
  84.  
  85. SEVERE: at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie._invoke(ReflectiveTie.java:174)
  86. SEVERE: at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatchToServant(CorbaServerRequestDispatcherImpl.java:528)
  87. SEVERE: at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatch(CorbaServerRequestDispatcherImpl.java:199)
  88. SEVERE: at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequestRequest(CorbaMessageMediatorImpl.java:1624)
  89. SEVERE: at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:1486)
  90. SEVERE: at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleInput(CorbaMessageMediatorImpl.java:990)
  91. SEVERE: at com.sun.corba.ee.impl.protocol.giopmsgheaders.RequestMessage_1_2.callback(RequestMessage_1_2.java:214)
  92. SEVERE: at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:742)
  93. SEVERE: at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.dispatch(CorbaMessageMediatorImpl.java:539)
  94. SEVERE: at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.doWork(CorbaMessageMediatorImpl.java:2324)
  95. SEVERE: at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.performWork(ThreadPoolImpl.java:497)
  96. SEVERE: at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:540)
  97.  
  98. properties.put("javax.persistence.jdbc.user", loginName);
  99. properties.put("javax.persistence.jdbc.password", password);
  100. properties.put("javax.persistence.jdbc.url", "jdbc:oracle:thin:@127.0.0.1:1521:ORCL");
  101. properties.put("javax.persistence.jdbc.driver", "oracle.jdbc.driver.OracleDriver");
  102.  
  103. EntityManagerFactory emf = Persistence.createEntityManagerFactory("xadp", properties);
  104. EntityManager em = emf.createEntityManager(properties);
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