| /* |
| * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| * @bug 4120329 |
| * @summary RMI registry creation is impossible if first attempt fails. |
| * @library ../../testlibrary |
| * @build TestLibrary JavaVM RegistryRunner RegistryRunner_Stub |
| * @run main/othervm Reexport |
| */ |
| |
| /* |
| * If a VM could not create an RMI registry because another registry |
| * usually in another process, was using the registry port, the next |
| * time the VM tried to create a registry (after the other registry |
| * was brought down) the attempt would fail. The second try to create |
| * a registry would fail because the registry ObjID would still be in |
| * use when it should never have been allocated. |
| * |
| * The test creates this conflict using Runtime.exec and ensures that |
| * a registry can still be created after the conflict is resolved. |
| */ |
| |
| import java.io.*; |
| import java.rmi.*; |
| import java.rmi.registry.*; |
| import java.rmi.server.*; |
| |
| public class Reexport { |
| static public void main(String[] argv) { |
| |
| Registry reg = null; |
| int regPort = TestLibrary.getUnusedRandomPort(); |
| |
| try { |
| System.err.println("\nregression test for 4120329\n"); |
| |
| // establish the registry (we hope) |
| System.err.println("Starting registry on port " + regPort); |
| Reexport.makeRegistry(regPort); |
| |
| // Get a handle to the registry |
| System.err.println("Creating duplicate registry, this should fail..."); |
| reg = createReg(true, regPort); |
| |
| if (reg != null) { |
| TestLibrary.bomb("failed was able to duplicate the registry?!?"); |
| } |
| |
| // Kill the first registry. |
| System.err.println("Bringing down the first registry"); |
| try { |
| Reexport.killRegistry(regPort); |
| } catch (Exception foo) { |
| } |
| |
| // start another registry now that the first is gone; this should work |
| System.err.println("Trying again to start our own " + |
| "registry... this should work"); |
| |
| reg = createReg(false, regPort); |
| |
| if (reg == null) { |
| TestLibrary.bomb("Could not create registry on second try"); |
| } |
| |
| System.err.println("Test passed"); |
| |
| } catch (Exception e) { |
| TestLibrary.bomb(e); |
| } finally { |
| // dont leave the registry around to affect other tests. |
| killRegistry(regPort); |
| |
| reg = null; |
| } |
| } |
| |
| static Registry createReg(boolean remoteOk, int port) { |
| Registry reg = null; |
| |
| try { |
| reg = LocateRegistry.createRegistry(port); |
| } catch (Throwable e) { |
| if (remoteOk) { |
| System.err.println("EXPECTING PORT IN USE EXCEPTION:"); |
| System.err.println(e.getMessage()); |
| e.printStackTrace(); |
| } else { |
| TestLibrary.bomb((Exception) e); |
| } |
| } |
| |
| return reg; |
| } |
| |
| public static void makeRegistry(int p) { |
| // sadly, we can't kill a registry if we have too-close control |
| // over it. We must make it in a subprocess, and then kill the |
| // subprocess when it has served our needs. |
| |
| try { |
| JavaVM jvm = new JavaVM("RegistryRunner", "", Integer.toString(p)); |
| jvm.start(); |
| Reexport.subreg = jvm.getVM(); |
| |
| } catch (IOException e) { |
| // one of these is summarily dropped, can't remember which one |
| System.out.println ("Test setup failed - cannot run rmiregistry"); |
| TestLibrary.bomb("Test setup failed - cannot run test", e); |
| } |
| // Slop - wait for registry to come up. This is stupid. |
| try { |
| Thread.sleep (5000); |
| } catch (Exception whatever) { |
| } |
| } |
| private static Process subreg = null; |
| |
| public static void killRegistry(int port) { |
| if (Reexport.subreg != null) { |
| |
| RegistryRunner.requestExit(port); |
| |
| try { |
| Reexport.subreg.waitFor(); |
| } catch (InterruptedException ie) { |
| } |
| } |
| Reexport.subreg = null; |
| } |
| } |