git: openjdk/jdk20u: master: 8304878: ConcurrentModificationException in javadoc tool

[Rob McKenna]

Changeset: 057d320b
Author:    Ravi Reddy <rreddy at openjdk.org>
Committer: Rob McKenna <robm at openjdk.org>
Date:      2023-06-12 13:14:29 +0000
URL:       https://git.openjdk.org/jdk20u/commit/057d320b7defa4cb043c8dfc34daa4de0d3a9b23

8304878: ConcurrentModificationException in javadoc tool

Backport-of: 01455a07a7e1f15aed43cd47222047810c826abd

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/util/Utils.java
+ test/langtools/jdk/javadoc/doclet/testLatePackageDiscovery/TestLatePackageDiscovery.java