code: static int getPoaThreadPoolMax() {
          if (!thread_pool_max_done) {
              final String str = System.getProperty("jacorb.poa.thread_pool_max");
              int value;
              try {
                  value = Integer.parseInt(str);
                  if (value > 0) {
                      thread_pool_max = value;
                  }
              } catch (final NumberFormatException e) {
              }
              thread_pool_max_done = true;
          }
          return thread_pool_max;
      }
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