code: private void actionDelete() throws PageException {
  	checkFile(pageContext, securityManager, file, serverPassword, false, false, false, false);
  	setACL(pageContext, file, acl);
  	try {
  	    if (!file.delete()) throw new ApplicationException("can't delete file [" + file + "]");
  	}
  	catch (Throwable t) {
  	    ExceptionUtil.rethrowIfNecessary(t);
  	    throw new ApplicationException(t.getMessage());
  	}
      }
docs: copy source file to destination file or path
  
  @throws PageException