docs: private boolean isStreamBlockedUnexpectedly()
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
          {
              SibTr.entry(this, tc, "isStreamBlockedUnexpectedly");
              SibTr.exit(tc, "isStreamBlockedUnexpectedly", Boolean.valueOf(unexpectedBlock));
          }
          return unexpectedBlock;
  
      }