JDK9 code changes - interface javax.swing.tree.TreeNode changed slightly
Prepare pmd release 5.1.3
release plugin back to 2.3.2 due to https://jira.codehaus.org/browse/MRELEASE-875
[maven-release-plugin] prepare release pmd_releases/5.1.3
[maven-release-plugin] prepare for next development iteration
Prepare next version