public void initialize(final PerformanceMonitorContext monitorContext) {
   super.initialize(monitorContext);
   paragraphLayoutWatch =
       monitorContext.createStopWatch(
           PerformanceTags.getSummaryTag(
               PerformanceTags.REPORT_LAYOUT_PROCESS_SUFFIX,
               getClass().getSimpleName() + ".ParagraphLayout"));
 }
 public void compute(final LogicalPageBox root) {
   getLineBreakState().clear();
   super.compute(root);
 }
 public void close() {
   super.close();
   paragraphLayoutWatch.close();
 }