Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Stack Overflow by DMT82
, 2 years ago
This exception has no message.
via Stack Overflow by Prasanna Kumar Balla
, 2 years ago
This exception has no message.
via Stack Overflow by Unknown author, 2 years ago
This exception has no message.
via Stack Overflow by Unknown author, 2 years ago
via Stack Overflow by EnderNicky
, 2 years ago
This exception has no message.
java.lang.NullPointerException at java.util.concurrent.ConcurrentHashMap.containsKey(ConcurrentHashMap.java:911) at com.facebook.internal.Utility.queryAppSettings(Utility.java:673) at com.facebook.widget.LoginButton$1.doInBackground(LoginButton.java:678) at com.facebook.widget.LoginButton$1.doInBackground(LoginButton.java:675) at android.os.AsyncTask$2.call(AsyncTask.java:287) at java.util.concurrent.FutureTask.run(FutureTask.java:234)