All reports of jar-contains-source for the archive. The extended description of this tag is:
The package ships the specified Jar file containing a .java file alongside a corresponding .class file.
This wastes disk space as the source is always available via apt source.
Please ensure that the specified .java files are not shipped in the Jar file.
Refer to Debian policy for Java section 2.4 (Java libraries) for details.
This tag has not been emitted in any package tested by Lintian.