code: protected final Class<?> findLoadedClass(String name) {
          try {
              return SystemClassLoader.loader.findClass(name);
          } catch (ClassNotFoundException e) {
              return null;
          }
      }
docs: Returns the class with the given <a href="#name">binary name</a> if this
  loader has been recorded by the Java virtual machine as an initiating
  loader of a class with that <a href="#name">binary name</a>.  Otherwise
  <tt>null</tt> is returned.
  
  @param  name
  The <a href="#name">binary name</a> of the class
  
  @return  The <tt>Class</tt> object, or <tt>null</tt> if the class has
  not been loaded
  
  @since  1.1