code: protected void addConfiguredProcessorArg(final CommandLineArgument arg) throws NullPointerException, BuildException {
      if (arg == null) {
        throw new NullPointerException("arg");
      }
      if (isReference()) {
        throw noChildrenAllowed();
      }
      this.processorArgs.addElement(arg);
    }
docs: Adds a <compilerarg>or <linkerarg>
  
  @param arg
  command line argument, must not be null
  @throws NullPointerException
  if arg is null
  @throws BuildException
  if this definition is a reference