> This refactor some `sun.nio.cs.ext` charsets, such as ISO-2022-CN-GB, > ISO-2022-CN-CNS, ISO-2022-KR and a few others to use static rather than > per-instance auxiliary decoders. Doing so reduce overheads of calling > `charset.newDecoder()`. This reduce or eliminate regressions on `new > String(byte[], String)` operations due the removal of thread-local decoder > caching in [JDK-8259842](https://bugs.openjdk.java.net/browse/JDK-8259842) > > Most ISO-2022 Charsets define a specialized decoder already. The > `ISO2022.Decoder` class was only used by `ISO2022_KR`, so folding it into > that implementation and simplifying the code brings a rather significant > speed-up, both to decoder creation and on actual decoding. > > Testing: tier1-3, manual runs of sun.nio.cs tests
Claes Redestad has updated the pull request incrementally with one additional commit since the last revision: Add comment about removing the generic ISO2022.Decoder ------------- Changes: - all: https://git.openjdk.java.net/jdk/pull/2480/files - new: https://git.openjdk.java.net/jdk/pull/2480/files/aa24f031..fa593915 Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2480&range=02 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2480&range=01-02 Stats: 7 lines in 1 file changed: 7 ins; 0 del; 0 mod Patch: https://git.openjdk.java.net/jdk/pull/2480.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/2480/head:pull/2480 PR: https://git.openjdk.java.net/jdk/pull/2480
