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 GitHub by jkasten2
, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at com.onesignal.OneSignalStateSynchronizer$UserState.generateJsonDiff(OneSignalStateSynchronizer.java:266)	at com.onesignal.OneSignalStateSynchronizer$UserState.access$700(OneSignalStateSynchronizer.java:208)	at com.onesignal.OneSignalStateSynchronizer.syncUserState(OneSignalStateSynchronizer.java:485)	at com.onesignal.SyncService$1.run(SyncService.java:62)	at java.lang.Thread.run(Thread.java:856)