maven-pmd-plugin 2.5 -> 3.2.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/compress/trunk@1633852 13f79535-47bb-0310-9956-ffa450edef68
Avoid modifiers which are implied by the context: all interface methods are public by definition.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/compress/trunk@1633855 13f79535-47bb-0310-9956-ffa450edef68
No need to explicitly extend Object.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/compress/trunk@1633856 13f79535-47bb-0310-9956-ffa450edef68
No need to explicitly extend Object.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/compress/trunk@1633857 13f79535-47bb-0310-9956-ffa450edef68
Avoid modifiers which are implied by the context: interface constants are final by definition.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/compress/trunk@1633861 13f79535-47bb-0310-9956-ffa450edef68