java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.LinearLayout.invalidate()' on a null object reference

Appcelerator JIRA | Shawn Lan | 2 years ago
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  1. 0

    Use the test case [here|https://jira.appcelerator.org/browse/TIMOB-19257]. Right after launch (during splash), click "back" to exit the app. Repeat several times and sometimes you'll see the crash. {code} [ERROR] : TiApplication: (main) [1,485] Sending event: exception on thread: main msg:java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.LinearLayout.invalidate()' on a null object reference; Titanium 4.1.0,2015/07/06 11:15,d57aa7d [ERROR] : TiApplication: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.LinearLayout.invalidate()' on a null object reference [ERROR] : TiApplication: at ti.modules.titanium.ui.widget.TiUIActivityIndicator.processProperties(TiUIActivityIndicator.java:98) [ERROR] : TiApplication: at org.appcelerator.kroll.KrollProxy.setModelListener(KrollProxy.java:1209) [ERROR] : TiApplication: at org.appcelerator.titanium.proxy.TiViewProxy.realizeViews(TiViewProxy.java:501) [ERROR] : TiApplication: at org.appcelerator.titanium.proxy.TiViewProxy.handleGetView(TiViewProxy.java:492) [ERROR] : TiApplication: at org.appcelerator.titanium.proxy.TiViewProxy.getOrCreateView(TiViewProxy.java:470) [ERROR] : TiApplication: at ti.modules.titanium.ui.ActivityIndicatorProxy.handleShow(ActivityIndicatorProxy.java:82) [ERROR] : TiApplication: at org.appcelerator.titanium.proxy.TiViewProxy.handleMessage(TiViewProxy.java:254) [ERROR] : TiApplication: at ti.modules.titanium.ui.ActivityIndicatorProxy.handleMessage(ActivityIndicatorProxy.java:67) [ERROR] : TiApplication: at android.os.Handler.dispatchMessage(Handler.java:98) [ERROR] : TiApplication: at android.os.Looper.loop(Looper.java:155) [ERROR] : TiApplication: at android.app.ActivityThread.main(ActivityThread.java:5696) [ERROR] : TiApplication: at java.lang.reflect.Method.invoke(Native Method) [ERROR] : TiApplication: at java.lang.reflect.Method.invoke(Method.java:372) [ERROR] : TiApplication: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1028) [ERROR] : TiApplication: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823) [ERROR] : AndroidRuntime: FATAL EXCEPTION: main [ERROR] : AndroidRuntime: Process: cc.forerunner.test, PID: 11388 [ERROR] : AndroidRuntime: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.LinearLayout.invalidate()' on a null object reference [ERROR] : AndroidRuntime: at ti.modules.titanium.ui.widget.TiUIActivityIndicator.processProperties(TiUIActivityIndicator.java:98) [ERROR] : AndroidRuntime: at org.appcelerator.kroll.KrollProxy.setModelListener(KrollProxy.java:1209) [ERROR] : AndroidRuntime: at org.appcelerator.titanium.proxy.TiViewProxy.realizeViews(TiViewProxy.java:501) [ERROR] : AndroidRuntime: at org.appcelerator.titanium.proxy.TiViewProxy.handleGetView(TiViewProxy.java:492) [ERROR] : AndroidRuntime: at org.appcelerator.titanium.proxy.TiViewProxy.getOrCreateView(TiViewProxy.java:470) [ERROR] : AndroidRuntime: at ti.modules.titanium.ui.ActivityIndicatorProxy.handleShow(ActivityIndicatorProxy.java:82) [ERROR] : AndroidRuntime: at org.appcelerator.titanium.proxy.TiViewProxy.handleMessage(TiViewProxy.java:254) [ERROR] : AndroidRuntime: at ti.modules.titanium.ui.ActivityIndicatorProxy.handleMessage(ActivityIndicatorProxy.java:67) [ERROR] : AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:98) [ERROR] : AndroidRuntime: at android.os.Looper.loop(Looper.java:155) [ERROR] : AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5696) [ERROR] : AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method) [ERROR] : AndroidRuntime: [ERROR] : AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1028) [ERROR] : AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823) {code}

    Appcelerator JIRA | 2 years ago | Shawn Lan
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.LinearLayout.invalidate()' on a null object reference
  2. 0

    Use the test case [here|https://jira.appcelerator.org/browse/TIMOB-19257]. Right after launch (during splash), click "back" to exit the app. Repeat several times and sometimes you'll see the crash. {code} [ERROR] : TiApplication: (main) [1,485] Sending event: exception on thread: main msg:java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.LinearLayout.invalidate()' on a null object reference; Titanium 4.1.0,2015/07/06 11:15,d57aa7d [ERROR] : TiApplication: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.LinearLayout.invalidate()' on a null object reference [ERROR] : TiApplication: at ti.modules.titanium.ui.widget.TiUIActivityIndicator.processProperties(TiUIActivityIndicator.java:98) [ERROR] : TiApplication: at org.appcelerator.kroll.KrollProxy.setModelListener(KrollProxy.java:1209) [ERROR] : TiApplication: at org.appcelerator.titanium.proxy.TiViewProxy.realizeViews(TiViewProxy.java:501) [ERROR] : TiApplication: at org.appcelerator.titanium.proxy.TiViewProxy.handleGetView(TiViewProxy.java:492) [ERROR] : TiApplication: at org.appcelerator.titanium.proxy.TiViewProxy.getOrCreateView(TiViewProxy.java:470) [ERROR] : TiApplication: at ti.modules.titanium.ui.ActivityIndicatorProxy.handleShow(ActivityIndicatorProxy.java:82) [ERROR] : TiApplication: at org.appcelerator.titanium.proxy.TiViewProxy.handleMessage(TiViewProxy.java:254) [ERROR] : TiApplication: at ti.modules.titanium.ui.ActivityIndicatorProxy.handleMessage(ActivityIndicatorProxy.java:67) [ERROR] : TiApplication: at android.os.Handler.dispatchMessage(Handler.java:98) [ERROR] : TiApplication: at android.os.Looper.loop(Looper.java:155) [ERROR] : TiApplication: at android.app.ActivityThread.main(ActivityThread.java:5696) [ERROR] : TiApplication: at java.lang.reflect.Method.invoke(Native Method) [ERROR] : TiApplication: at java.lang.reflect.Method.invoke(Method.java:372) [ERROR] : TiApplication: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1028) [ERROR] : TiApplication: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823) [ERROR] : AndroidRuntime: FATAL EXCEPTION: main [ERROR] : AndroidRuntime: Process: cc.forerunner.test, PID: 11388 [ERROR] : AndroidRuntime: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.LinearLayout.invalidate()' on a null object reference [ERROR] : AndroidRuntime: at ti.modules.titanium.ui.widget.TiUIActivityIndicator.processProperties(TiUIActivityIndicator.java:98) [ERROR] : AndroidRuntime: at org.appcelerator.kroll.KrollProxy.setModelListener(KrollProxy.java:1209) [ERROR] : AndroidRuntime: at org.appcelerator.titanium.proxy.TiViewProxy.realizeViews(TiViewProxy.java:501) [ERROR] : AndroidRuntime: at org.appcelerator.titanium.proxy.TiViewProxy.handleGetView(TiViewProxy.java:492) [ERROR] : AndroidRuntime: at org.appcelerator.titanium.proxy.TiViewProxy.getOrCreateView(TiViewProxy.java:470) [ERROR] : AndroidRuntime: at ti.modules.titanium.ui.ActivityIndicatorProxy.handleShow(ActivityIndicatorProxy.java:82) [ERROR] : AndroidRuntime: at org.appcelerator.titanium.proxy.TiViewProxy.handleMessage(TiViewProxy.java:254) [ERROR] : AndroidRuntime: at ti.modules.titanium.ui.ActivityIndicatorProxy.handleMessage(ActivityIndicatorProxy.java:67) [ERROR] : AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:98) [ERROR] : AndroidRuntime: at android.os.Looper.loop(Looper.java:155) [ERROR] : AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5696) [ERROR] : AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method) [ERROR] : AndroidRuntime: [ERROR] : AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1028) [ERROR] : AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823) {code}

    Appcelerator JIRA | 2 years ago | Shawn Lan
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.LinearLayout.invalidate()' on a null object reference
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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'void android.widget.LinearLayout.invalidate()' on a null object reference

      at ti.modules.titanium.ui.widget.TiUIActivityIndicator.processProperties()
    2. ti.modules.titanium
      TiUIActivityIndicator.processProperties
      1. ti.modules.titanium.ui.widget.TiUIActivityIndicator.processProperties(TiUIActivityIndicator.java:98)
      1 frame
    3. org.appcelerator.kroll
      KrollProxy.setModelListener
      1. org.appcelerator.kroll.KrollProxy.setModelListener(KrollProxy.java:1209)
      1 frame
    4. org.appcelerator.titanium
      TiViewProxy.getOrCreateView
      1. org.appcelerator.titanium.proxy.TiViewProxy.realizeViews(TiViewProxy.java:501)
      2. org.appcelerator.titanium.proxy.TiViewProxy.handleGetView(TiViewProxy.java:492)
      3. org.appcelerator.titanium.proxy.TiViewProxy.getOrCreateView(TiViewProxy.java:470)
      3 frames
    5. ti.modules.titanium
      ActivityIndicatorProxy.handleShow
      1. ti.modules.titanium.ui.ActivityIndicatorProxy.handleShow(ActivityIndicatorProxy.java:82)
      1 frame
    6. org.appcelerator.titanium
      TiViewProxy.handleMessage
      1. org.appcelerator.titanium.proxy.TiViewProxy.handleMessage(TiViewProxy.java:254)
      1 frame
    7. ti.modules.titanium
      ActivityIndicatorProxy.handleMessage
      1. ti.modules.titanium.ui.ActivityIndicatorProxy.handleMessage(ActivityIndicatorProxy.java:67)
      1 frame
    8. Android Platform
      ActivityThread.main
      1. android.os.Handler.dispatchMessage(Handler.java:98)
      2. android.os.Looper.loop(Looper.java:155)
      3. android.app.ActivityThread.main(ActivityThread.java:5696)
      3 frames
    9. Java RT
      Method.invoke
      1. java.lang.reflect.Method.invoke(Native Method)
      2. java.lang.reflect.Method.invoke(Method.java:372)
      2 frames
    10. Android
      ZygoteInit.main
      1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1028)
      2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823)
      2 frames