1 /*
   2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 import java.io.IOException;
  25 import java.net.URL;
  26 import java.net.URLConnection;
  27 
  28 /**
  29  * Access a jrt:/ resource in an observable module that is not in the boot
  30  * layer and hence not known to the built-in class loaders.
  31  */
  32 
  33 public class OtherResources {
  34     public static void main(String[] args) throws IOException {
  35 
  36         // check that java.desktop is not in the set of readable modules
  37         try {
  38             Class.forName("java.awt.Component");
  39             throw new RuntimeException("Need to run with -limitmods java.base");
  40         } catch (ClassNotFoundException expected) { }
  41 
  42         // access resource in the java.desktop module
  43         URL url = new URL("jrt:/java.desktop/java/awt/Component.class");
  44         URLConnection uc = url.openConnection();
  45         System.out.println(uc.getInputStream());
  46     }
  47 }