This is a request to clean up a desktop module as was done in JDK-8233884 for "java.base" module.
In many places standard charsets are looked up via their names, for example: absolutePath.getBytes("UTF-8"); This could be done more efficiently(x20 time faster) with use of java.nio.charset.StandardCharsets: absolutePath.getBytes(StandardCharsets.UTF_8); The later variant also makes the code cleaner, as it is known not to throw UnsupportedEncodingException in contrary to the former variant. Tested by the desktop headless/headful tests on linux/windows. ------------- Commit messages: - Initial fix for JDK-8271456 Changes: https://git.openjdk.java.net/jdk/pull/4951/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4951&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8271456 Stats: 641 lines in 28 files changed: 276 ins; 237 del; 128 mod Patch: https://git.openjdk.java.net/jdk/pull/4951.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/4951/head:pull/4951 PR: https://git.openjdk.java.net/jdk/pull/4951