It has nothing to do with language. The jar you quoted is compiled into a class, and the source code cannot be viewed. A general open source program jar has two packages, one of which is generally named xxx_src.jar. This is the source code package, which contains java files. Your package is a class file.
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It has nothing to do with language. The jar you quoted is compiled into a class, and the source code cannot be viewed. A general open source program jar has two packages, one of which is generally named
xxx_src.jar. This is the source code package, which contains java files. Your package is a class file.