hg: jmc/jmc: JMC-6266: Making core compile with/run on JDK 7 again

[marcus.hirt at oracle.com]

Changeset: 48b0eb1e3f18
Author:    hirt <marcus.hirt at oracle.com>
Date:      2018-12-11 20:11 +0100
URL:       http://hg.openjdk.java.net/jmc/jmc/rev/48b0eb1e3f18

JMC-6266: Making core compile with/run on JDK 7 again
Reviewed-by: jmatsuoka,mwengner

! core/org.openjdk.jmc.flightrecorder.rules.jdk/src/main/java/org/openjdk/jmc/flightrecorder/rules/jdk/general/DuplicateFlagsRule.java