That's it, no need to have a JDK installed in your host system.
Unfortunately the Bazel remote JDK targets don't expose some files
required by Karaf at runtime (conf/security). The workaround for
now is to check them in here, but we should consider fixing the Bazel
rules upstream.
Change-Id: Ib003b1589d326655c1cf5f329ebe48b0c946743f
