code: public void setUnChanged() {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(this, tc, "setUnChanged");
      changed = false;
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(this, tc, "setUnChanged");
    }
docs: Set the changed flag back to false if the map is written back to JMF