@Override
        public int hashCode() {
            return message.hashCode();
        }
This error has a message and an equals() implementation as to be able
to match it against the serialized version of itself.
tika-parsers/tika-parsers-standard/tika-parsers-standard-package/src/test/java/org/apache/tika/parser/fork/ForkParserIntegrationTest.java