Trivial fixes to ProblemList 3 different tests: [JDK-8304017](https://bugs.openjdk.org/browse/JDK-8304017) ProblemList com/sun/jdi/InvokeHangTest.java on windows-x64 in vthread mode [JDK-8304018](https://bugs.openjdk.org/browse/JDK-8304018) ProblemList javax/swing/JColorChooser/Test6827032.java on windows-x64 [JDK-8304019](https://bugs.openjdk.org/browse/JDK-8304019) ProblemList java/awt/dnd/MissingDragExitEventTest/MissingDragExitEventTest.java on windows-x64
------------- Commit messages: - 8304019: ProblemList java/awt/dnd/MissingDragExitEventTest/MissingDragExitEventTest.java on windows-x64 - 8304018: ProblemList javax/swing/JColorChooser/Test6827032.java on windows-x64 - 8304017: ProblemList com/sun/jdi/InvokeHangTest.java on windows-x64 in vthread mode Changes: https://git.openjdk.org/jdk/pull/12990/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12990&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8304017 Stats: 5 lines in 2 files changed: 3 ins; 0 del; 2 mod Patch: https://git.openjdk.org/jdk/pull/12990.diff Fetch: git fetch https://git.openjdk.org/jdk pull/12990/head:pull/12990 PR: https://git.openjdk.org/jdk/pull/12990
