Bug 543933 - Build javadocs with Java 11

Fix javadoc warnings catched by Java 11 tool with XDoclint:syntax.

Change-Id: I64c1bfea9e20e83daf89e6df9ca12f7d7ff7b31b
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
1 file changed