As discussed in HBASE-19256 we will have to temporarily revert to Jetty 9.3 due existing issues with 9.4 and Hadoop3. Once HBASE-19256 is resolved we can revert to 9.4.
Cannot start mini dfs cluster using hadoop-3 in test due to NoSuchMethodError in jetty
HBase fails to run on Hadoop 3.3.0/3.2.2/3.1.4 due to jetty version mismatch
[hbase-thirdparty] shade jetty
Port HADOOP-10379: Protect authentication cookies with the HttpOnly and Secure flags