1 /* 2 * Copyright (c) 1999, 2013, 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 /* @test 25 * @bug 4183169 26 * @summary Minor problem with the way ReliableLog handles IOExceptions. 27 * 28 * @author Laird Dornin; code borrowed from Ann Wollrath 29 * 30 * @library ../../../testlibrary 31 * @build TestLibrary RMID 32 * TestSecurityManager RegisteringActivatable ShutdownGracefully_Stub 33 * @run main/othervm/policy=security.policy/timeout=700 ShutdownGracefully 34 */ 35 36 import java.rmi.activation.*; 37 import java.rmi.*; 38 import java.util.Properties; 39 40 /** 41 * The test creates an rmid with a special security manager. After 42 * rmid makes two registrations (which is greater than rmid's 43 * snapshotInterval) the security manager stops allowing rmid to write 44 * to update and snapshot log files in rmid's log directory. The Test 45 * registers an Activatable object twice with different group ids. 46 * The second registration will cause rmid to have to write to a 47 * LogFile (it causes a snapshot) and the security manager will not 48 * allow the file write to happen. The test makes sure that rmid 49 * shuts down in a graceful manner without any explicit request to do 50 * so. The test will not exit for 400 seconds if rmid does not exit 51 * (after that time, the test will fail). 52 */ 53 public class ShutdownGracefully 54 extends Activatable implements Runnable, RegisteringActivatable 55 { 56 private static RegisteringActivatable registering = null; 57 58 private final static long SHUTDOWN_TIMEOUT = 400 * 1000; 59 60 public static void main(String args[]) { 61 62 RMID rmid = null; 63 64 System.err.println("\nRegression test for bug/rfe 4183169\n"); 65 66 try { 67 TestLibrary.suggestSecurityManager( 68 "java.rmi.RMISecurityManager"); 69 70 // start an rmid. 71 RMID.removeLog(); 72 rmid = RMID.createRMID(); 73 74 // rmid needs to run with a security manager that 75 // simulates a log problem; rmid should also snapshot 76 // quickly. 77 rmid.addOptions(new String[] { 78 "-Djava.security.manager=TestSecurityManager", 79 "-Dsun.rmi.activation.snapshotInterval=1"}); 80 81 // rmid.addArguments(new String[] { 82 // "-C-Djava.rmi.server.logCalls=true"}); 83 84 rmid.start(); 85 86 // Ensure that activation groups run with the correct 87 // security manager. 88 // 89 Properties p = new Properties(); 90 p.put("java.security.policy", 91 TestParams.defaultGroupPolicy); 92 p.put("java.security.manager", 93 "java.lang.SecurityManager"); 94 95 System.err.println("activation group will be created " + 96 "in a new VM"); 97 ActivationGroupDesc groupDesc = 98 new ActivationGroupDesc(p, null); 99 ActivationSystem system = ActivationGroup.getSystem(); 100 ActivationGroupID groupID = system.registerGroup(groupDesc); 101 102 System.err.println("registering activatable"); 103 ActivationDesc desc = new ActivationDesc 104 (groupID, "ShutdownGracefully", null, null); 105 registering = (RegisteringActivatable) 106 Activatable.register(desc); 107 108 System.err.println("activate and deactivate object " + 109 "via method call"); 110 registering.shutdown(); 111 112 /* 113 * the security manager rmid is running with will stop 114 * rmid from writing to its log files; in 1.2.x this would 115 * have caused rmid to have thrown a runtime exception and 116 * continue running in an unstable state. With the fix 117 * for 4183169, rmid should shutdown gracefully instead. 118 */ 119 120 /* 121 * register another activatable with a new group id; rmid 122 * should not recover from this... I use two 123 * registrations to more closely simulate the environment 124 * in which the bug was found. In java versions with out 125 * the appropriate bug fix, rmid would hide a 126 * NullPointerException in this circumstance. 127 */ 128 p.put("dummyname", "dummyvalue"); 129 groupDesc = new ActivationGroupDesc(p, null); 130 ActivationGroupID secondGroupID = 131 system.registerGroup(groupDesc); 132 desc = new ActivationDesc(secondGroupID, 133 "ShutdownGracefully", null, null); 134 135 try { 136 registering = (RegisteringActivatable) 137 Activatable.register(desc); 138 139 System.err.println("second activate and deactivate " + 140 "object via method call"); 141 } catch (ActivationException e) { 142 System.err.println("received exception from registration " + 143 "call that should have failed..."); 144 } 145 146 /* 147 * no longer needed because the security manager 148 * throws an exception during snapshot 149 */ 150 /* 151 try { 152 registering.shutdown(); 153 154 System.err.println("received exception from remote " + 155 "call that should have failed..."); 156 } catch (RemoteException e) { 157 } 158 */ 159 160 } catch (Exception e) { 161 TestLibrary.bomb("\nfailure: unexpected exception ", e); 162 } finally { 163 try { 164 Thread.sleep(4000); 165 } catch (InterruptedException e) { 166 } 167 168 registering = null; 169 170 // Need to make sure that rmid goes away by itself 171 JavaVM rmidProcess = rmid; 172 if (rmidProcess != null) { 173 try { 174 Runnable waitThread = 175 new ShutdownDetectThread(rmidProcess); 176 177 synchronized (waitThread) { 178 (new Thread(waitThread)).start(); 179 waitThread.wait(SHUTDOWN_TIMEOUT); 180 System.err.println("rmid has shutdown"); 181 182 if (!rmidDone) { 183 // ensure that this rmid does not infect 184 // other tests. 185 rmidProcess.destroy(); 186 TestLibrary.bomb("rmid did not shutdown " + 187 "gracefully in time"); 188 } 189 } 190 } catch (Exception e) { 191 TestLibrary.bomb("exception waiting for rmid " + 192 "to shut down"); 193 } 194 } 195 // else rmid should be down 196 } 197 198 System.err.println 199 ("\nsuccess: ShutdownGracefully test passed "); 200 } 201 202 private static boolean rmidDone = false; 203 204 /** 205 * class that waits for rmid to exit 206 */ 207 private static class ShutdownDetectThread implements Runnable { 208 private JavaVM rmidProcess = null; 209 210 ShutdownDetectThread(JavaVM rmidProcess) { 211 this.rmidProcess = rmidProcess; 212 } 213 public void run() { 214 System.err.println("waiting for rmid to shutdown"); 215 216 try { 217 rmidProcess.waitFor(); 218 } catch (InterruptedException e) { 219 // should not happen 220 } 221 222 synchronized (this) { 223 // notify parent thread when rmid has exited 224 this.notify(); 225 rmidDone = true; 226 } 227 228 RMID.removeLog(); 229 } 230 } 231 232 /** 233 * implementation of RegisteringActivatable 234 */ 235 public ShutdownGracefully 236 (ActivationID id, MarshalledObject mo) throws RemoteException 237 { 238 // register/export anonymously 239 super(id, 0); 240 } 241 242 /** 243 * Spawns a thread to deactivate the object. 244 */ 245 public void shutdown() throws Exception { 246 (new Thread(this, "ShutdownGracefully")).start(); 247 } 248 249 /** 250 * Thread to deactivate object. First attempts to make object 251 * inactive (via the inactive method). If that fails (the 252 * object may still have pending/executing calls), then 253 * unexport the object forcibly. 254 */ 255 public void run() { 256 try { 257 Thread.sleep(50 * 1000); 258 } catch (InterruptedException e) { 259 } 260 ActivationLibrary.deactivate(this, getID()); 261 } 262 }