java.lang.NullPointerException: Attempt to invoke virtual method 'android.app.enterprise.ApplicationPolicy android.app.enterprise.EnterpriseDeviceManager.getApplicationPolicy()' on a null object reference                                                                         at com.signity.myknox.MainActivity.go(MainActivity.java:68)                                                                         at com.signity.myknox.MainActivity.onCreate(MainActivity.java:43)                                                                         at android.app.Activity.performCreate(Activity.java:5990)                                                                         at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)                                                                         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)                                                                         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)

samsung.com | 7 months ago
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  1. 0

    Initialisation error | SEAP

    samsung.com | 7 months ago
    java.lang.NullPointerException: Attempt to invoke virtual method 'android.app.enterprise.ApplicationPolicy android.app.enterprise.EnterpriseDeviceManager.getApplicationPolicy()' on a null object reference                                                                         at com.signity.myknox.MainActivity.go(MainActivity.java:68)                                                                         at com.signity.myknox.MainActivity.onCreate(MainActivity.java:43)                                                                         at android.app.Activity.performCreate(Activity.java:5990)                                                                         at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)                                                                         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)                                                                         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
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    java.lang.NullPointerException
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    java.lang.NullPointerException in Wifi enabling code

    Stack Overflow | 3 years ago | user59053
    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Object android.content.Context.getSystemService(java.lang.String)' on a null object reference 01-01 22:53:40.994: W/System.err(13438): at com.wifiTest.TurnOnWIfiTestAction.turnOnWifi(TurnOnWIfiTestAction.java:18) 01-01 22:53:40.994: W/System.err(13438): at com.post.l_upgrade.MainActivity.wifienable(MainActivity.java:46) 01-01 22:53:40.994: W/System.err(13438): at java.lang.reflect.Method.invoke(Native Method) 01-01 22:53:40.994: W/System.err(13438): at java.lang.reflect.Method.invoke(Method.java:372) 01-01 22:53:40.994: W/System.err(13438): at android.view.View$1.onClick(View.java:3986) 01-01 22:53:41.000: W/System.err(13438): at android.view.View.performClick(View.java:4728) 01-01 22:53:41.000: W/System.err(13438): at android.view.View$PerformClick.run(View.java:19508) 01-01 22:53:41.000: W/System.err(13438): at android.os.Handler.handleCallback(Handler.java:739) 01-01 22:53:41.002: W/System.err(13438): at android.os.Handler.dispatchMessage(Handler.java:95) 01-01 22:53:41.002: W/System.err(13438): at android.os.Looper.loop(Looper.java:135)
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    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference

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Root Cause Analysis

  1. java.lang.NullPointerException

    Attempt to invoke virtual method 'android.app.enterprise.ApplicationPolicy android.app.enterprise.EnterpriseDeviceManager.getApplicationPolicy()' on a null object reference                                                                         at com.signity.myknox.MainActivity.go(MainActivity.java:68)                                                                         at com.signity.myknox.MainActivity.onCreate(MainActivity.java:43)                                                                         at android.app.Activity.performCreate(Activity.java:5990)                                                                         at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)                                                                         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)                                                                         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)

    at android.app.ActivityThread.access$800()
  2. Android Platform
    ActivityThread.main
    1. android.app.ActivityThread.access$800(ActivityThread.java:151)
    2. android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
    3. android.os.Handler.dispatchMessage(Handler.java:102)
    4. android.os.Looper.loop(Looper.java:135)
    5. android.app.ActivityThread.main(ActivityThread.java:5254)
    5 frames
  3. Java RT
    Method.invoke
    1. java.lang.reflect.Method.invoke(Native Method)
    2. java.lang.reflect.Method.invoke(Method.java:372)
    2 frames
  4. Android
    ZygoteInit$MethodAndArgsCaller.run
    1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
    1 frame