java.lang.NullPointerException

Attempt to invoke virtual method 'int java.lang.Object.hashCode()' on a null object reference

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Solutions on the web21087

  • via GitHub by fesiong
    , 5 months ago
    Attempt to invoke virtual method 'int java.lang.Object.hashCode()' on a null object reference
  • Attempt to invoke virtual method 'int java.lang.Object.hashCode()' on a null object reference
  • Attempt to invoke virtual method 'int java.lang.Object.hashCode()' on a null object reference
  • Stack trace

    • java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Object.hashCode()' on a null object reference at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:746) at java.util.concurrent.ConcurrentHashMap.containsKey(ConcurrentHashMap.java:774) at com.facebook.internal.Utility.queryAppSettings(Utility.java:825) at com.facebook.login.widget.LoginButton$1.run(LoginButton.java:489) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) at java.lang.Thread.run(Thread.java:818)

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