code: @Trivial
      public static void printTrace(String key, Object value, int tabLevel) {
          if (tc.isDebugEnabled()) {
              StringBuilder msg = new StringBuilder();
              for (int count = 0; count < tabLevel; count++) {
                  msg.append("\t");
              }
              if (value != null) {
                  msg.append(key);
                  msg.append(":");
                  msg.append(value);
              } else {
                  msg.append(key);
              }
              Tr.debug(tc, msg.toString());
          }
      }
docs: printTrace: This method print the messages to the trace file.
  
  @param key
  @param value
  @param tabLevel