This is the continuation of JDK-8233884, JDK-8271456, and JDK-8272120. See https://github.com/openjdk/jdk/pull/5063 and https://github.com/openjdk/jdk/pull/4951
In many places standard charsets are looked up via their names, for example: absolutePath.getBytes("UTF-8"); This could be done more efficiently(up to 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. This change includes: * demo/utils * jdk.xx packages * Some places were missed in the previous changes. I have found it by tracing the calls to the Charset.forName() by executing tier1,2,3 and desktop tests. Also checked for "aliases" usage. Some performance discussion: https://github.com/openjdk/jdk/pull/5063 Code excluded in this fix: the Xerces library(should be fixed upstream), J2DBench(should be compatible to 1.4), some code in the "java.naming"(the change there is not straightforward, will do it later). Tested by the tier1/tier2/tier3 tests on Linux/Windows/macOS. ------------- Commit messages: - Fix related imports - Merge branch 'master' into standard-encodings-in-non-public-modules - Cleanup UnsupportedEncodingException - Update PacketStream.java - Rollback TextTests, should be compatible with jdk1.4 - Rollback TextRenderTests, should be compatible with jdk1.4 - Cleanup the UnsupportedEncodingException - aliases for ISO_8859_1 - Update imageio - Initial fix Changes: https://git.openjdk.java.net/jdk/pull/5210/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5210&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8272805 Stats: 333 lines in 48 files changed: 91 ins; 123 del; 119 mod Patch: https://git.openjdk.java.net/jdk/pull/5210.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/5210/head:pull/5210 PR: https://git.openjdk.java.net/jdk/pull/5210