@VisibleForTesting
  public void dumpTestLog() {
    if (CasLog.casLog != null) {
      CasLog.casLog.dumpLog(true);
    }
  }
Unsets the headers (meaning this does not refer to a buffer).
llap-server/src/java/org/apache/hadoop/hive/llap/cache/BuddyAllocator.java