java.lang.NullPointerException: sourceCode

htmlunit | dungdung123 | 8 years ago
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    htmlunit | 8 years ago | dungdung123
    java.lang.NullPointerException: sourceCode
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    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
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    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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    java.lang.NullPointerException: Cannot invoke method getAt() on null object
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    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

    sourceCode

    at com.gargoylesoftware.htmlunit.WebAssert.notNull()
  2. HtmlUnit
    JavaScriptEngine$HtmlUnitContextAction.run
    1. com.gargoylesoftware.htmlunit.WebAssert.notNull(WebAssert.java:471)
    2. com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.compile(JavaScriptEngine.java:373)
    3. com.gargoylesoftware.htmlunit.html.HtmlPage.loadJavaScriptFromUrl(HtmlPage.java:1083)
    4. com.gargoylesoftware.htmlunit.html.HtmlPage.loadExternalJavaScriptFile(HtmlPage.java:974)
    5. com.gargoylesoftware.htmlunit.html.HtmlScript.executeScriptIfNeeded(HtmlScript.java:359)
    6. com.gargoylesoftware.htmlunit.html.HtmlScript$1.execute(HtmlScript.java:223)
    7. com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.processPostponedActions(JavaScriptEngine.java:560)
    8. com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.access$1(JavaScriptEngine.java:554)
    9. com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:529)
    9 frames
  3. HtmlUnit Core JS
    ContextFactory.call
    1. net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:515)
    2. net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:507)
    2 frames
  4. HtmlUnit
    JavaScriptEngine$HtmlUnitContextAction.run
    1. com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:432)
    2. com.gargoylesoftware.htmlunit.html.HtmlPage.loadExternalJavaScriptFile(HtmlPage.java:976)
    3. com.gargoylesoftware.htmlunit.html.HtmlScript.executeScriptIfNeeded(HtmlScript.java:359)
    4. com.gargoylesoftware.htmlunit.html.HtmlScript$1.execute(HtmlScript.java:223)
    5. com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.processPostponedActions(JavaScriptEngine.java:560)
    6. com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:493)
    7. com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$6.doRun(JavaScriptEngine.java:457)
    8. com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:528)
    8 frames
  5. HtmlUnit Core JS
    ContextFactory.call
    1. net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:515)
    2. net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:507)
    2 frames
  6. HtmlUnit
    JavaScriptJobManagerImpl$ExecutingJobTracker.run
    1. com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:464)
    2. com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScriptFunctionIfPossible(HtmlPage.java:932)
    3. com.gargoylesoftware.htmlunit.javascript.background.JavaScriptFunctionJob.runJavaScript(JavaScriptFunctionJob.java:53)
    4. com.gargoylesoftware.htmlunit.javascript.background.JavaScriptExecutionJob.run(JavaScriptExecutionJob.java:76)
    5. com.gargoylesoftware.htmlunit.javascript.background.JavaScriptJobManagerImpl$ExecutingJobTracker.run(JavaScriptJobManagerImpl.java:90)
    5 frames
  7. Java RT
    Thread.run
    1. java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
    2. java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    3. java.util.concurrent.FutureTask.run(Unknown Source)
    4. java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown Source)
    5. java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
    6. java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
    7. java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    8. java.lang.Thread.run(Unknown Source)
    8 frames