hg: build-infra/jdk8: Made dependencies between java and native compilation work for java

[erik.joelsson at oracle.com]

Changeset: 0c5d600a2e06
Author:    erikj
Date:      2012-10-12 12:57 +0200
URL:       http://hg.openjdk.java.net/build-infra/jdk8/rev/0c5d600a2e06

Made dependencies between java and native compilation work for java
batch compilation mode. Header files are only updated if they actually
changes since last compilation.

! common/makefiles/JavaCompilation.gmk