hg: jmc/jmc: 5368: Clear stacktrace view when editor is closed

[jmatsuok at redhat.com]

Changeset: c565a2a4bf74
Author:    kdobson
Date:      2019-06-05 10:24 -0400
URL:       http://hg.openjdk.java.net/jmc/jmc/rev/c565a2a4bf74

5368: Clear stacktrace view when editor is closed
Summary: Stacktrace clears on close
Reviewed by: hirt

! application/org.openjdk.jmc.flightrecorder.ui/src/main/java/org/openjdk/jmc/flightrecorder/ui/views/stacktrace/StacktraceView.java