java.lang.NullPointerException

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  • Where does this exception come from?
    via Stack Overflow by JHnet
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  • Android/Java - NullPointerException
    via Stack Overflow by user3461933
    ,
    • java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.Resources android.content.Context.getResources()' on a null object reference at android.content.ContextWrapper.getResources(ContextWrapper.java:86) at android.view.ContextThemeWrapper.getResources(ContextThemeWrapper.java:74) at android.content.Context.getString(Context.java:377) at com.example.myname.myappname.Hersteller$4$2.onClick(Hersteller.java:251) at android.support.v7.app.AlertController$ButtonHandler.handleMessage(AlertController.java:153) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:211) at android.app.ActivityThread.main(ActivityThread.java:5389) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1020) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:815)

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