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 kvway
, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at undefined.MergeSort.merge(mergesort.java:29)	at undefined.MergeSort.mergeSort(mergesort.java:18)	at undefined.MergeSort.mergeSort(mergesort.java:15)	at undefined.MergeSort.main(mergesort.java:44)