On Thu, 9 Sep 2021 06:50:21 GMT, Andrey Turbanov <github.com+741251+turban...@openjdk.org> wrote:
> StringBuffer is a legacy synchronized class. There are more modern > alternatives which perform better: > 1. Plain String concatenation should be preferred > 2. StringBuilder is a direct replacement to StringBuffer which generally have > better performance > > In [JDK-8264029](https://bugs.openjdk.java.net/browse/JDK-8264029) I > migrated only usages which were automatically detected by IDEA. It turns out > there are more usages which can be migrated. src/java.base/share/classes/java/lang/Character.java line 123: > 121: * than U+FFFF are called <em>supplementary character</em>s. The Java > 122: * platform uses the UTF-16 representation in {@code char} arrays and > 123: * in the {@code String} and {@code StringBuilder} classes. In Not sure simple replacement applies here, as `StringBuffer` still uses `UTF-16` representation. You may add `StringBuilder` as well here, but I think you might want to file a CSR to clarify. ------------- PR: https://git.openjdk.java.net/jdk/pull/5432
