hg: code-tools/jtreg: 7901474: Field 'fired' in Alarm should be marked volatile

[jonathan.gibbons at oracle.com]

Changeset: 160e00964cdf
Author:    sla
Date:      2015-08-03 11:50 -0700
URL:       http://hg.openjdk.java.net/code-tools/jtreg/rev/160e00964cdf

7901474: Field 'fired' in Alarm should be marked volatile

! src/share/classes/com/sun/javatest/regtest/agent/Alarm.java