hg: jdk/sandbox: 8242596: Improve JarFile.getEntry performance for multi-release jar files

[chris.hegarty at oracle.com]

Changeset: 3d69461c344e
Author:    redestad
Date:      2020-04-17 11:46 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/3d69461c344e

8242596: Improve JarFile.getEntry performance for multi-release jar files
Reviewed-by: lancea, redestad
Contributed-by: eirbjo at gmail.com, claes.redestad at oracle.com

! src/java.base/share/classes/java/util/jar/JarFile.java
! src/java.base/share/classes/java/util/zip/ZipFile.java
! src/java.base/share/classes/jdk/internal/access/JavaUtilZipFileAccess.java