I’m trying to figure out an odd problem I have with an executable jar file:
xyz.jar has a classpath in the manifest file / and depends on abc.jar library.
Unfortunately, the manifest classpath in xyz.jar is incorrect. To save from disaster, I’m updating the execution commands to use: java -classpath path/abc.jar:etc instead of java -jar
The problem is that xyz.jar malfuntions unless abc.jar is NOT on the classpath. When abc.jar is removed the program executes correctly, and no exceptions are thrown.
Why? xyz.jar must be picking up abc.jar from somewhere else. xyz.jar calls methods in abc.jar.
-classpath should override any $CLASSPATH setting. Is it possible that java still looks at the manifest classpath even when using -classpath?
If you specify -jar, only the class-path in the manifest is used. All others are ignored. If you need to respecify the classpath, don’t use -jar.