`static final Map<String,GTKStockIcon> ICONS_MAP` is modified only in `static` block. Then [com.sun.java.swing.plaf.gtk.GTKStyle#get](https://github.com/kumarabhi006/jdk/blob/73f7a5f15dbba54a98f3916ff1190520ac07874d/src/java.desktop/share/classes/com/sun/java/swing/plaf/gtk/GTKStyle.java#L892) method read from it within `synchronized (ICONS_MAP)` block. As this map is read-only and all its content is initialized in static block we can safely remove synchronized from get call.
------------- Commit messages: - Remove Synchronized block Changes: https://git.openjdk.org/jdk/pull/20741/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20741&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8308588 Stats: 4 lines in 1 file changed: 0 ins; 3 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/20741.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/20741/head:pull/20741 PR: https://git.openjdk.org/jdk/pull/20741
