WEB-10382 Karma tests: allow "Test ignored" output to be suppressed
cleanup — use MultiMap.createLinked
cleanup — Consider to use factory methods {@link #createLinked()}, {@link #createSet()}, {@link #createSmartList()}, {@link #create(gnu.trove.TObjectHashingStrategy)} instead of override.
faster xml properties indexing: don't process if no requered namespace string present