Bug 562025 - Can't rebuild launchingsupport.jar on Java 11

Use ECJ to compile this jar, this ensures we can generate Java
1.1 bytecode even when the system JDK cannot

Change-Id: I1e5ce2332b784c7c2cd009c6529900a95bced748
Signed-off-by: Mat Booth <mat.booth@redhat.com>
1 file changed