code: public void compileIfModified(String fileName, LineMap lineMap)
      throws IOException, ClassNotFoundException
    {
      compile(fileName, lineMap, true);
    }
docs: Compiles the class.  className is a fully qualified Java class, e.g.
  work.jsp.Test
  
  @param fileName Java source name -- in VFS format
  @param lineMap mapping from generated class back to the source class
  
  @return compiled class