code: private boolean isHeaderinSuppressedHeadersList(String headername)
      {
          if (WCCustomProperties.CHECK_REQUEST_OBJECT_IN_USE){
              checkRequestObjectInUse();
          }
  
          boolean suppressHeader = false;
          if(headername != null){
              Iterator itList = suppressheadersList.iterator();
              while (itList.hasNext() && !(suppressHeader)) {
                  String s = (String) itList.next();
                  if (headername.startsWith(s)) {    	
                      suppressHeader = true;
                      if (TraceComponent.isAnyTracingEnabled() && logger.isLoggable (Level.FINE))   
                          logger.logp(Level.FINE, CLASS_NAME, "isHeaderinSuppressedHeadersList", " suppressHeadersInRequest is set and headername --> "+ headername +" begins with --> " + s);
                  }
              }
          }
          return suppressHeader;
      }
docs: Returns true if header can be suppressed, or false if not.