java.lang.NullPointerException: Attempt to invoke virtual method<br/> 'android.content.res.Resources android.content.Context.getResources()' on a null object reference<br/>

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    java.lang.NullPointerException: Attempt to invoke virtual method<br/> 'android.content.res.Resources android.content.Context.getResources()' on a null object reference<br/>
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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'android.content.res.Resources<br/> android.content.Context.getResources()' on a null object reference<br/>

      at android.content.ContextWrapper.getResources()
    2. Android Platform
      ContextThemeWrapper.getResources
      1. android.content.ContextWrapper.getResources(ContextWrapper.java:85)
      2. android.view.ContextThemeWrapper.getResources(ContextThemeWrapper.java:74)
      2 frames
    3. pl.zen.wykaz
      WykazOverviewActivity.<init>
      1. pl.zen.wykaz.WykazOverviewActivity.<init>(WykazOverviewActivity.java:49)
      1 frame
    4. Java RT
      Class.newInstance
      1. java.lang.reflect.Constructor.newInstance(Native Method)
      2. java.lang.Class.newInstance(Class.java:1572)
      2 frames
    5. Android Platform
      ActivityThread.main
      1. android.app.Instrumentation.newActivity(Instrumentation.java:1065)
      2. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2199)
      3. android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
      4. android.app.ActivityThread.access$800(ActivityThread.java:144)
      5. android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
      6. android.os.Handler.dispatchMessage(Handler.java:102)
      7. android.os.Looper.loop(Looper.java:135)
      8. android.app.ActivityThread.main(ActivityThread.java:5221)
      8 frames
    6. Java RT
      Method.invoke
      1. java.lang.reflect.Method.invoke(Native Method)
      2. java.lang.reflect.Method.invoke(Method.java:372)
      2 frames
    7. Android
      ZygoteInit.main
      1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
      2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
      2 frames