Trailing Root Directory is Added to sourcepath (and classpath)

The javac command generated by Maven contains a trailing colon or semi-colon depending on the OS. For example:

-sourcepath <project>\src\main\java;

which is equivalent to:

-sourcepath <project>\src\main\java;\

Therefore, if a source file exists in the root directory under its project structure, the source file will be compiled.

(Similarly, a trailing colon or semi-colon is added to the classpath.)