https://hbase.apache.org/2.5/devapidocs/org/apache/hadoop/hbase/master/procedure/ProcedurePrepareLatch.CompatibilityLatch.html
ProcedurePrepareLatch.CompatibilityLatch (Apache HBase 2.5.0 API)
apache hbaseapi
https://hbase.apache.org/1.4/devapidocs/org/apache/hadoop/hbase/master/procedure/ProcedurePrepareLatch.CompatibilityLatch.html
ProcedurePrepareLatch.CompatibilityLatch (Apache HBase 1.4.11 API)
apache hbaseapi