how to edit `.class` file in Maven dependency in Eclipse

Question

Ok, so I have my Java projects, and under the Maven dependency project folder on the project explorer, I encounter a jar folder, and in it there is a .cla

Answer 1

As has been previously mentioned, you can't modify .class files. You can download the source java files of the dependencies if available via:

mvn dependency:sources
mvn dependency:resolve -Dclassifier=javadoc