code: public void addFileset(final ConditionalFileSet srcSet) throws BuildException {
      if (isReference()) {
        throw noChildrenAllowed();
      }
      srcSet.setProject(getProject());
      this.srcSets.addElement(srcSet);
    }
docs: Adds a source file set.
  
  Files in these set will be processed by this configuration and will not
  participate in the auction.
  
  @param srcSet
  Fileset identifying files that should be processed by this
  processor
  @throws BuildException
  if processor definition is a reference