hg: jmc/jmc: JMC-6455: Building source jars when building core

[marcus at hirt.se]

Changeset: 64229c9df7c2
Author:    hirt <marcus.hirt at oracle.com>
Date:      2019-04-15 13:14 +0200
URL:       http://hg.openjdk.java.net/jmc/jmc/rev/64229c9df7c2

JMC-6455: Building source jars when building core
Reviewed-by: hirt
Contributed-by: Stefan Ferstl <st.ferstl at gmail.com>

! core/pom.xml