How do I fix a NoSuchMethodError?

Question

I\'m getting a NoSuchMethodError error when running my Java program. What\'s wrong and how do I fix it?

Answer 1

If you have access to change the JVM parameters, adding verbose output should allow you to see what classes are being loaded from which JAR files.

java -verbose:class 

When your program is run, the JVM should dump to standard out information such as:

...

[Loaded junit.framework.Assert from file:/C:/Program%20Files/junit3.8.2/junit.jar]

...