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. ------------- Commit messages: - [PATCH] Cleanup usages of StringBuffer in java.base module - [PATCH] Cleanup usages of StringBuffer in java.base module Changes: https://git.openjdk.java.net/jdk/pull/5432/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5432&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8274879 Stats: 32 lines in 12 files changed: 0 ins; 0 del; 32 mod Patch: https://git.openjdk.java.net/jdk/pull/5432.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/5432/head:pull/5432 PR: https://git.openjdk.java.net/jdk/pull/5432