git: openjdk/jdk22u: master: 8325730: StringBuilder.toString allocation for the empty String

[Aleksey Shipilev]

Changeset: b2275aac
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2024-03-11 09:17:31 +0000
URL:       https://git.openjdk.org/jdk22u/commit/b2275aac15d49a74651ca0560c04ba0e800af48b

8325730: StringBuilder.toString allocation for the empty String

Backport-of: d2590c69b4efe5aa2b48b08070e0dbafb04ef202

! src/java.base/share/classes/java/lang/StringBuffer.java
! src/java.base/share/classes/java/lang/StringBuilder.java
! test/micro/org/openjdk/bench/java/lang/StringBuffers.java
! test/micro/org/openjdk/bench/java/lang/StringBuilders.java