THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
...
Another issue is that the excludedocfilessubdir option is ignored with Windows7, org.apache.maven.plugin.javadoc.JavadocReportTest.testJavadocResources() fails when trying to confirm that the maven-feather.png hasn't been copied (watch it, it's the third assertion for the feather!)
maven-jarsigner-plugin
With jdk <1.8, when jarsigner can not verify a jar then exit code is 1 (this is normal); while with jdk 1.8, result code is 0.