protected final void failIfAborted() {
    if (aborted.get()) {
      if (hasMoreState()) {
        setAbortFailure(getClass().getSimpleName(), "abort requested");
      } else {
        LOG.warn("Ignoring abort request on state='" + getCurrentState() + "' for " + this);
      }
    }
  }
If procedure has more states then abort it otherwise procedure is finished and abort can be
ignored.
hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/StateMachineProcedure.java