helix-core/src/main/java/org/apache/helix/tools/commandtools/JmxDumper.java [300:319]:
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  private static boolean checkOptionArgsNumber(Option[] options) {
    for (Option option : options) {
      int argNb = option.getArgs();
      String[] args = option.getValues();
      if (argNb == 0) {
        if (args != null && args.length > 0) {
          System.err.println(option.getArgName() + " shall have " + argNb + " arguments (was "
              + Arrays.toString(args) + ")");
          return false;
        }
      } else {
        if (args == null || args.length != argNb) {
          System.err.println(option.getArgName() + " shall have " + argNb + " arguments (was "
              + Arrays.toString(args) + ")");
          return false;
        }
      }
    }
    return true;
  }
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helix-core/src/main/java/org/apache/helix/tools/commandtools/TaskAdmin.java [253:272]:
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  private static boolean checkOptionArgsNumber(Option[] options) {
    for (Option option : options) {
      int argNb = option.getArgs();
      String[] args = option.getValues();
      if (argNb == 0) {
        if (args != null && args.length > 0) {
          System.err.println(option.getArgName() + " shall have " + argNb + " arguments (was "
              + Arrays.toString(args) + ")");
          return false;
        }
      } else {
        if (args == null || args.length != argNb) {
          System.err.println(option.getArgName() + " shall have " + argNb + " arguments (was "
              + Arrays.toString(args) + ")");
          return false;
        }
      }
    }
    return true;
  }
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