hg: jdk/jdk: 8220030: JdbStopThreadidTest.java failed due to "Unexpected IO error while writing command 'quit' to jdb stdin stream"

[chris.plummer at oracle.com]

Changeset: f3468c1bdf5f
Author:    cjplummer
Date:      2019-03-05 13:40 -0800
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/f3468c1bdf5f

8220030: JdbStopThreadidTest.java failed due to "Unexpected IO error while writing command 'quit' to jdb stdin stream"
Summary: Use contToExit(1) for safer approach to test exit.
Reviewed-by: gadams, amenkov

! test/jdk/com/sun/jdi/JdbStopThreadidTest.java