git: openjdk/loom: fibers: 3 new changesets

[duke]

Changeset: 7e20fe30
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-11 16:55:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/7e20fe30c25f18efeaea56e39e061937c73d5589

Improve javadoc

! src/java.base/share/classes/java/net/DatagramSocket.java

Changeset: 962f629b
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-12 19:14:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/962f629b0da263fc52135145fd3cab0780295643

Don't signal worker when queue in empty for limited cases

! src/java.base/share/classes/java/lang/System.java
! src/java.base/share/classes/java/lang/VirtualThread.java
! src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java
! src/java.base/share/classes/jdk/internal/access/JavaLangAccess.java
! src/java.base/share/classes/jdk/internal/misc/VirtualThreads.java
! src/java.base/share/classes/sun/nio/ch/Poller.java

Changeset: 51419e70
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2021-10-13 10:22:02 +0000
URL:       https://git.openjdk.java.net/loom/commit/51419e70f322a00de65cceb66be8447958e7d938

Remove commeneted excludes and other sync up of exclude lists

! test/hotspot/jtreg/ProblemList.txt
! test/jdk/ProblemList-vthread.txt