java.lang.NullPointerException

Attempt to invoke interface method 'boolean java.util.List.isEmpty()' on a null object reference


Solutions on the web21545

Solution icon of github
via GitHub by derek-cheung
, 1 year ago
Attempt to invoke interface method 'boolean java.util.List.isEmpty()' on a null object reference

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Attempt to invoke interface method 'boolean java.util.List.isEmpty()' on a null object reference

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Attempt to invoke interface method 'boolean java.util.List.isEmpty()' on a null object reference

Solution icon of github
via GitHub by C0rn3j
, 2 weeks ago
Attempt to invoke interface method 'boolean java.util.List.isEmpty()' on a null object reference

Solution icon of github
via GitHub by sureshjoshi
, 1 year ago
Attempt to invoke interface method 'boolean java.util.List.isEmpty()' on a null object reference

Solution icon of github
Attempt to invoke interface method 'boolean java.util.List.isEmpty()' on a null object reference

Solution icon of github
Attempt to invoke interface method 'boolean java.util.List.isEmpty()' on a null object reference

Solution icon of github
via GitHub by KeithYokoma
, 1 year ago
Attempt to invoke interface method 'boolean java.util.List.isEmpty()' on a null object reference

Solution icon of github
via GitHub by vcrepin
, 10 months ago
Attempt to invoke interface method 'boolean java.util.List.isEmpty()' on a null object reference

Solution icon of github
via GitHub by dcherian
, 9 months ago
Attempt to invoke interface method 'boolean java.util.List.isEmpty()' on a null object reference

Stack trace

  • java.lang.NullPointerException: Attempt to invoke interface method 'boolean java.util.List.isEmpty()' on a null object reference at com.twitter.sdk.android.core.Callback.onResponse(Callback.java:42) at retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall$1$1.run(ExecutorCallAdapterFactory.java:68) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:158) at android.app.ActivityThread.main(ActivityThread.java:7229) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)

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