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

Samebug tips

  1. ,
    Expert tip

    One of the variables you're using is set to Null or you're passing a Null value to a method expecting another kind of value

Solutions on the web

via Stack Overflow by Josh2g
, 1 year ago
java.lang.NullPointerException: 	at SobelOperator.FindEdges(SobelOperator.java:17)	at Main.main(Main.java:5)