Remove all non final static variables in jpackage java code (using InheritableThreadLocal for Logger and Argument instances) and remove sychronization in JPackageToolProvider.
------------- Commit messages: - JDK-8223322: Improve concurrency in jpackage instances - JDK-8223322: Improve concurrency in jpackage instances Changes: https://git.openjdk.java.net/jdk/pull/1829/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1829&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8223322 Stats: 214 lines in 8 files changed: 134 ins; 52 del; 28 mod Patch: https://git.openjdk.java.net/jdk/pull/1829.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/1829/head:pull/1829 PR: https://git.openjdk.java.net/jdk/pull/1829
