This may be a simple question, but when using libraries that are licensed under GPL, I'm not sure what part of the license applies.
I have two separate libraries in a JAR file that I'm using that I'm distributing with my software. Neither libraries came with a LICENSE file. I modified one of the libraries by removing some of the files from the JAR (examples, tests, etc). My software is also open source but is not licensed.
Is there anything else I need to do to abide by the GPL license of the libraries I'm using?