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javamavenclassloader

Maven ClassNotFoundException in project

I'm working in the following setup:

I have a Project A that is used to analyze another maven project B. Project A is added to project B as a dependency and using the exec-maven-plugin I execute the main class of project A inside project B.

Now in this main class I try to load a class from project B using the class loader I got with ClassLoader.getSystemClassLoader(); but I get a ClassNotFoundException. I also tried the class loader this.getClass().getClassLoader(); but it didn't change anything.

I checked the classpath with mvn -X and the target directory of the project was added and all compiled classes are actually in there too.

If I try to check the class path from within the code I just get /opt/maven/boot/plexus-classworlds-2.5.2.jar

Solution

  • Figured out the problem.

    The right class loader is the one that I get with this.getClass().getClassLoader();. The main problem was that I tried to load a test class and target/test-classes was not on the class path.