Bug 543933 - Build javadocs with Java 11

After fixing majority of Xdoclint:html issues there are warnings even
with Xdoclint:none.

Change-Id: I8d4ec9e2b5bfa137526e8bee0d00a3c9fef0eddb
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
4 files changed