java.lang.NullPointerException

Stack Overflow | Marian Iconaru | 8 months ago
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  1. 0

    Getting a nullpointer exception when switching displayables in J2ME

    Stack Overflow | 6 years ago | Pallinder
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
  2. 0

    J2ME (Java) - Null Pointer Exception caught in Display Class

    Stack Overflow | 6 years ago | Tom
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
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  4. 0

    Cloud Foundry v2 in Grails

    Stack Overflow | 3 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object
  5. 0

    NullPointerException in MIDlet with left soft key

    Stack Overflow | 6 years ago | berry120
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callItemListener(), bci=57 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=57 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at com.x.dao.CDDAOImpl.updateMedia()
    2. com.x.dao
      CDDAOImpl.updateMedia
      1. com.x.dao.CDDAOImpl.updateMedia(CDDAOImpl.java:55)
      1 frame
    3. com.x.controller
      CDController.doPost
      1. com.x.controller.CDController.doPost(CDController.java:107)
      1 frame
    4. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
      2. javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
      2 frames
    5. Undertow Servlet
      ServletDispatchingHandler.handleRequest
      1. io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:86)
      2. io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
      3. io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
      3 frames
    6. WildFly: Undertow
      SecurityContextAssociationHandler.handleRequest
      1. org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
      1 frame
    7. Undertow Core
      PredicateHandler.handleRequest
      1. io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
      1 frame
    8. Undertow Servlet
      ServletAuthenticationCallHandler.handleRequest
      1. io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
      2. io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
      2 frames
    9. Undertow Core
      AbstractConfidentialityHandler.handleRequest
      1. io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
      2. io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
      2 frames
    10. Undertow Servlet
      ServletConfidentialityConstraintHandler.handleRequest
      1. io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
      1 frame
    11. Undertow Core
      AuthenticationMechanismsHandler.handleRequest
      1. io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)
      1 frame
    12. Undertow Servlet
      CachedAuthenticatedSessionHandler.handleRequest
      1. io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:72)
      1 frame
    13. Undertow Core
      PredicateHandler.handleRequest
      1. io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
      2. io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)
      3. io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
      3 frames
    14. WildFly: Undertow
      JACCContextIdHandler.handleRequest
      1. org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
      1 frame
    15. Undertow Core
      PredicateHandler.handleRequest
      1. io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
      2. io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
      2 frames
    16. Undertow Servlet
      ServletInitialHandler$1.handleRequest
      1. io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:282)
      2. io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:261)
      3. io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:80)
      4. io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:172)
      4 frames
    17. Undertow Core
      HttpServerExchange$1.run
      1. io.undertow.server.Connectors.executeRootHandler(Connectors.java:199)
      2. io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:774)
      2 frames
    18. Java RT
      Thread.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      3. java.lang.Thread.run(Thread.java:745)
      3 frames