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 Oracle Community by 843797, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at Subsets.permutations(Subsets.java:108)	at PlayScopa.computerTurn(PlayScopa.java:273)	at PlayScopa.scopaPlay(PlayScopa.java:133)	at PlayScopa.scopaStart(PlayScopa.java:89)	at MainApp.main(MainApp.java:29)