Summary
- merged
- updated to jdk-8u121;
- clarified owner;
- insist in proper GNU tar, to avoid subtle semantic differences;
- hardlink within JVM; clarified file attributes;
- tuned;
- clarified operation: include dirs as well;
- tuned;
- tuned;
- build_jdk in Scala;
- corrected static scope: multi-argument composition does not apply partially