1 /*
2 * Copyright (c) 1998, 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 4116437
26 * @summary Distributed Garbage Collector Memory Leak
27 *
28 * @author Laird Dornin
29 *
30 * @library ../../testlibrary
31 * @modules java.rmi/sun.rmi.registry
32 * java.rmi/sun.rmi.server
33 * java.rmi/sun.rmi.transport
34 * java.rmi/sun.rmi.transport.tcp
35 * @build TestLibrary CheckLeaseLeak_Stub LeaseLeakClient LeaseLeak
36 * @run main/othervm/timeout=240 CheckLeaseLeak
37 *
38 */
39
40 /**
41 * A bug in sun.rmi.transport.DGCImp.checkLeases() results in memory
42 * leak of LeaseInfo objects.
43 *
44 * In order to verify that this problem no longer exists, we create a
45 * remote object and a serveral clients in different VMs. The clients
46 * call a remote method on an exported object. This will cause the rmi
47 * runtime to create several references (all with different vmids) to
48 * the remote object. Each vmid needs a seperate LeaseInfo object in
49 * the object table target DGCImpl.leaseTable. If the leak is fixed,
50 * the leaseTable field will contain no objects. We use reflection to
51 * find the number of objects contained in this table.
52 */
73 private final static int ITERATIONS = 10;
74 private final static int numberPingCalls = 0;
75 private final static int CHECK_INTERVAL = 400;
76 private final static int LEASE_VALUE = 20;
77
78 public static void main (String[] args) {
79 CheckLeaseLeak leakServer = null;
80 int numLeft =0;
81
82 /*
83 * we want DGC to collect leases *quickly*
84 * decrease the lease check interval
85 */
86 TestLibrary.setInteger("sun.rmi.dgc.checkInterval",
87 CHECK_INTERVAL);
88 TestLibrary.setInteger("java.rmi.dgc.leaseValue",
89 LEASE_VALUE);
90
91 try {
92 Registry registry =
93 TestLibrary.createRegistryOnUnusedPort();
94 int registryPort = TestLibrary.getRegistryPort(registry);
95
96 leakServer = new CheckLeaseLeak();
97 registry.rebind("/LeaseLeak", leakServer);
98
99 /* create a bunch of clients in a *different* vm */
100 for (int i = 0 ; i < ITERATIONS ; i ++ ) {
101 System.err.println("Created client: " + i);
102
103 JavaVM jvm = new JavaVM("LeaseLeakClient",
104 " -Djava.security.policy=" +
105 TestParams.defaultPolicy +
106 " -Drmi.registry.port=" +
107 registryPort,
108 "");
109
110 if (jvm.execute() != 0) {
111 TestLibrary.bomb("Client process failed");
112 }
113 }
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1 /*
2 * Copyright (c) 1998, 2016, 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 4116437
26 * @summary Distributed Garbage Collector Memory Leak
27 *
28 * @author Laird Dornin
29 *
30 * @library ../../testlibrary
31 * @modules java.rmi/sun.rmi.registry
32 * java.rmi/sun.rmi.server
33 * java.rmi/sun.rmi.transport:open
34 * java.rmi/sun.rmi.transport
35 * java.rmi/sun.rmi.transport.tcp
36 * @build TestLibrary CheckLeaseLeak_Stub LeaseLeakClient LeaseLeak
37 * @run main/othervm/timeout=240 CheckLeaseLeak
38 *
39 */
40
41 /**
42 * A bug in sun.rmi.transport.DGCImp.checkLeases() results in memory
43 * leak of LeaseInfo objects.
44 *
45 * In order to verify that this problem no longer exists, we create a
46 * remote object and a serveral clients in different VMs. The clients
47 * call a remote method on an exported object. This will cause the rmi
48 * runtime to create several references (all with different vmids) to
49 * the remote object. Each vmid needs a seperate LeaseInfo object in
50 * the object table target DGCImpl.leaseTable. If the leak is fixed,
51 * the leaseTable field will contain no objects. We use reflection to
52 * find the number of objects contained in this table.
53 */
74 private final static int ITERATIONS = 10;
75 private final static int numberPingCalls = 0;
76 private final static int CHECK_INTERVAL = 400;
77 private final static int LEASE_VALUE = 20;
78
79 public static void main (String[] args) {
80 CheckLeaseLeak leakServer = null;
81 int numLeft =0;
82
83 /*
84 * we want DGC to collect leases *quickly*
85 * decrease the lease check interval
86 */
87 TestLibrary.setInteger("sun.rmi.dgc.checkInterval",
88 CHECK_INTERVAL);
89 TestLibrary.setInteger("java.rmi.dgc.leaseValue",
90 LEASE_VALUE);
91
92 try {
93 Registry registry =
94 TestLibrary.createRegistryOnEphemeralPort();
95 int registryPort = TestLibrary.getRegistryPort(registry);
96
97 leakServer = new CheckLeaseLeak();
98 registry.rebind("/LeaseLeak", leakServer);
99
100 /* create a bunch of clients in a *different* vm */
101 for (int i = 0 ; i < ITERATIONS ; i ++ ) {
102 System.err.println("Created client: " + i);
103
104 JavaVM jvm = new JavaVM("LeaseLeakClient",
105 " -Djava.security.policy=" +
106 TestParams.defaultPolicy +
107 " -Drmi.registry.port=" +
108 registryPort,
109 "");
110
111 if (jvm.execute() != 0) {
112 TestLibrary.bomb("Client process failed");
113 }
114 }
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