remove System.out.println

[zhaozhi406]

can you remove System.out.println in method ClassVisitor.visitConstantPool() ? It could be good to let user to decide how to print information, for example use logger

[niesfisch]

you could fork the project, fix it and send a pull request ;-)

[Adrninistrator]

You can try my fork:
https://github.com/Adrninistrator/java-callgraph

It can output the result to the specified file.