git: openjdk/jdk17u-dev: 2 new changesets

[Goetz Lindenmaier]

Changeset: 23fc8605
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2022-06-29 12:39:24 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/23fc8605d30749ab4010998a45316c015455851b

8284294: Create an automated regression test for RFE 4138746

Backport-of: 0a67d686709000581e29440ef13324d1f2eba9ff

+ test/jdk/javax/swing/JLabel/4138746/JLabelMnemonicsTest.java

Changeset: 180f3d99
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2022-06-29 12:41:09 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/180f3d99708b3eafb3897202521ebf51726c9d3d

8284944: assert(cnt++ < 40) failed: infinite cycle in loop optimization

Backport-of: 796494d0fecfb9587e8b68ff1d5c09411cb82f89

! src/hotspot/share/opto/compile.cpp
+ test/hotspot/jtreg/compiler/loopopts/TestMaxLoopOptsCountReached.java