public NarClassLoader(final File narWorkingDirectory) throws ClassNotFoundException, IOException {
  super(new URL[0]);
  this.narWorkingDirectory=narWorkingDirectory;
  updateClasspath(narWorkingDirectory);
}

public NarClassLoader ( final File narWorkingDirectory ) throws ClassNotFoundException , IOException { super ( new URL [ 0 ] ) ; this . narWorkingDirectory = narWorkingDirectory ; updateClasspath ( narWorkingDirectory ) ; }
construct a nar class loader .
