java.lang.NullPointerException

Oracle Community | 843830 | 1 decade ago
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    Android: Saving Map State in Google map

    Stack Overflow | 11 months ago | Junie Negentien
    java.lang.RuntimeException: Unable to resume activity {com.ourThesis.junieNegentien2015/com.ourThesis.junieNegentien2015.MainActivity}: java.lang.NullPointerException
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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at mytesting.calculator.CalculatorBean.conn()
    2. mytesting.calculator
      CalculatorBean.conn
      1. mytesting.calculator.CalculatorBean.conn(CalculatorBean.java:76)
      1 frame
    3. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      4. java.lang.reflect.Method.invoke(Method.java:324)
      4 frames
    4. JBoss Application Server Server
      StatelessSessionContainer$ContainerInterceptor.invoke
      1. org.jboss.invocation.Invocation.performCall(Invocation.java:345)
      2. org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:214)
      2 frames
    5. JBoss Application Server Connector
      CachedConnectionInterceptor.invoke
      1. org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
      1 frame
    6. JBoss Application Server Server
      StatelessSessionInstanceInterceptor.invoke
      1. org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:130)
      1 frame
    7. org.jboss.webservice
      ServiceEndpointInterceptor.invoke
      1. org.jboss.webservice.server.ServiceEndpointInterceptor.invoke(ServiceEndpointInterceptor.java:51)
      1 frame
    8. JBoss Application Server Server
      Container.invoke
      1. org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:48)
      2. org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:105)
      3. org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:335)
      4. org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:166)
      5. org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:139)
      6. org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:192)
      7. org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
      8. org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:624)
      9. org.jboss.ejb.Container.invoke(Container.java:873)
      9 frames
    9. Java RT
      Method.invoke
      1. sun.reflect.GeneratedMethodAccessor68.invoke(Unknown Source)
      2. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      3. java.lang.reflect.Method.invoke(Method.java:324)
      3 frames
    10. org.jboss.mx
      ReflectedDispatcher.invoke
      1. org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
      1 frame
    11. JBoss Application Server J2SE
      MBeanServerImpl.invoke
      1. org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
      2. org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
      3. org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)
      4. org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
      4 frames
    12. JBoss Application Server Server
      JRMPInvoker.invoke
      1. org.jboss.invocation.jrmp.server.JRMPInvoker$MBeanServerAction.invoke(JRMPInvoker.java:805)
      2. org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:406)
      2 frames
    13. Java RT
      Thread.run
      1. sun.reflect.GeneratedMethodAccessor67.invoke(Unknown Source)
      2. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      3. java.lang.reflect.Method.invoke(Method.java:324)
      4. sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
      5. sun.rmi.transport.Transport$1.run(Transport.java:148)
      6. java.security.AccessController.doPrivileged(Native Method)
      7. sun.rmi.transport.Transport.serviceCall(Transport.java:144)
      8. sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
      9. sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
      10. java.lang.Thread.run(Thread.java:534)
      10 frames