hg: jdk-updates/jdk13u: 8230303: JDB hangs when running monitor command

[ivan.gerasimov at oracle.com]

Changeset: e2bf1a9c9dac
Author:    igerasim
Date:      2019-09-16 15:20 -0700
URL:       https://hg.openjdk.java.net/jdk-updates/jdk13u/rev/e2bf1a9c9dac

8230303: JDB hangs when running monitor command
Reviewed-by: sspitsyn

! src/jdk.jdi/share/classes/com/sun/tools/example/debug/tty/TTY.java
+ test/hotspot/jtreg/vmTestbase/nsk/jdb/monitor/monitor002/monitor002.java
+ test/hotspot/jtreg/vmTestbase/nsk/jdb/monitor/monitor002/monitor002a.java