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23 
24 /* @test
25  * @bug 4183169 8032050
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 import java.util.concurrent.TimeoutException;
40 
41 /**
42  * The test creates an rmid with a special security manager.  After
43  * rmid makes two registrations (which is greater than rmid's
44  * snapshotInterval) the security manager stops allowing rmid to write
45  * to update and snapshot log files in rmid's log directory.  The Test
46  * registers an Activatable object twice with different group ids.
47  * The second registration will cause rmid to have to write to a
48  * LogFile (it causes a snapshot) and the security manager will not
49  * allow the file write to happen.  The test makes sure that rmid
50  * shuts down in a graceful manner without any explicit request to do
51  * so.  The test will not exit for 400 seconds if rmid does not exit
52  * (after that time, the test will fail).
53  */
54 public class ShutdownGracefully
55     extends Activatable implements RegisteringActivatable
56 {
57     private static RegisteringActivatable registering = null;
58 
59     private final static long SHUTDOWN_TIMEOUT = 400 * 1000;
60 
main(String args[])61     public static void main(String args[]) {
62 
63         RMID rmid = null;
64 
65         // Save exception if there is a exception or expected behavior
66         Exception exception = null;
67         System.err.println("\nRegression test for bug/rfe 4183169\n");
68 
69         try {
70             TestLibrary.suggestSecurityManager(
71                 "java.rmi.RMISecurityManager");
72 
73             // start an rmid.
74             RMID.removeLog();
75             rmid = RMID.createRMID();
76 
77             // rmid needs to run with a security manager that
78             // simulates a log problem; rmid should also snapshot
79             // quickly.
80             rmid.addOptions(new String[] {
81                 "-Djava.security.manager=TestSecurityManager",
82                 "-Dsun.rmi.activation.snapshotInterval=1"});
83 
84             //      rmid.addArguments(new String[] {
85             //          "-C-Djava.rmi.server.logCalls=true"});
86 
87             rmid.start();
88 
89             // Ensure that activation groups run with the correct
90             // security manager.
91             //
92             Properties p = new Properties();
93             p.put("java.security.policy",
94                   TestParams.defaultGroupPolicy);
95             p.put("java.security.manager",
96                   "java.lang.SecurityManager");
97 
98             System.err.println("activation group will be created " +
99                                "in a new VM");
100             ActivationGroupDesc groupDesc =
101                 new ActivationGroupDesc(p, null);
102             ActivationSystem system = ActivationGroup.getSystem();
103             ActivationGroupID groupID = system.registerGroup(groupDesc);
104 
105             System.err.println("registering activatable");
106             ActivationDesc desc = new ActivationDesc
107                 (groupID, "ShutdownGracefully", null, null);
108             registering = (RegisteringActivatable)
109                 Activatable.register(desc);
110 
111             System.err.println("activate and deactivate object " +
112                                "via method call");
113             registering.shutdown();
114 
115             /*
116              * the security manager rmid is running with will stop
117              * rmid from writing to its log files; in 1.2.x this would
118              * have caused rmid to have thrown a runtime exception and
119              * continue running in an unstable state.  With the fix
120              * for 4183169, rmid should shutdown gracefully instead.
121              */
122 
123             /*
124              * register another activatable with a new group id; rmid
125              * should not recover from this...  I use two
126              * registrations to more closely simulate the environment
127              * in which the bug was found.  In java versions with out
128              * the appropriate bug fix, rmid would hide a
129              * NullPointerException in this circumstance.
130              */
131             p.put("dummyname", "dummyvalue");
132             groupDesc = new ActivationGroupDesc(p, null);
133             ActivationGroupID secondGroupID =
134                 system.registerGroup(groupDesc);
135             desc = new ActivationDesc(secondGroupID,
136                 "ShutdownGracefully", null, null);
137 
138             /*
139              * registration request is expected to be failed. succeeded case
140              * should be recorded. And raise error after clean up  rmid.
141              */
142             try {
143                 registering = (RegisteringActivatable)
144                     Activatable.register(desc);
145                 System.err.println("The registration request succeeded unexpectedly");
146                 exception = new RuntimeException("The registration request succeeded unexpectedly");
147             } catch (ActivationException e) {
148                 System.err.println("received exception from registration " +
149                                    "call that should have failed...");
150                 // Need wait rmid process terminates.
151                 try {
152                     int exitCode = rmid.waitFor(SHUTDOWN_TIMEOUT);
153                     System.err.println("RMID has exited gracefully with exitcode:" + exitCode);
154                     rmid = null;
155                 } catch (TimeoutException te) {
156                     System.err.println("RMID process has not exited in given time");
157                     exception = te;
158                 }
159             }
160         } catch (Exception e) {
161             System.err.println("Exception thrown:" + e);
162             exception = e;
163         } finally {
164             if (rmid != null)
165                 rmid.destroy();
166         }
167         if (exception != null)
168             TestLibrary.bomb("\nexception thrown in test: ", exception);
169     }
170 
171     /**
172      * implementation of RegisteringActivatable
173      */
ShutdownGracefully(ActivationID id, MarshalledObject mo)174     public ShutdownGracefully
175         (ActivationID id, MarshalledObject mo) throws RemoteException
176     {
177         // register/export anonymously
178         super(id, 0);
179     }
180 
181     /**
182      * Deactivates the object. We need to unexport forcibly because this call
183      * in-progress on this object, which is the same object that we are trying
184      * to deactivate.
185      */
shutdown()186     public void shutdown() throws Exception {
187         Activatable.unexportObject(this, true);
188         ActivationLibrary.deactivate(this, getID());
189     }
190 }
191