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 }