1 /*
2 * Copyright (c) 2015, 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 import java.io.IOException;
25 import java.net.BindException;
26 import java.util.Properties;
27 import java.util.function.Predicate;
28 import static org.testng.Assert.*;
29 import org.testng.annotations.AfterMethod;
30 import org.testng.annotations.BeforeClass;
31 import org.testng.annotations.BeforeMethod;
32 import org.testng.annotations.BeforeTest;
33 import org.testng.annotations.Test;
34
35 import jdk.testlibrary.ProcessTools;
36
37
38 /**
39 * @test
40 * @bug 8075926
41 * @summary Makes sure that the current management agent status is reflected
42 * in the related performance counters.
43 * @key intermittent
44 * @library /lib/testlibrary
45 * @modules jdk.management.agent/jdk.internal.agent
46 * @build jdk.testlibrary.* PortAllocator TestApp ManagementAgentJcmd
47 * @run testng/othervm -XX:+UsePerfData JMXStatusPerfCountersTest
48 */
49 public class JMXStatusPerfCountersTest {
50 private final static String TEST_APP_NAME = "TestApp";
51
52 private final static String REMOTE_STATUS_KEY = "sun.management.JMXConnectorServer.remote.enabled";
53
54 private static ProcessBuilder testAppPb;
55 private Process testApp;
56
57 private ManagementAgentJcmd jcmd;
58
59 @BeforeClass
60 public static void setupClass() throws Exception {
61 testAppPb = ProcessTools.createJavaProcessBuilder(
62 "-XX:+UsePerfData",
63 "-cp", System.getProperty("test.class.path"),
64 TEST_APP_NAME
65 );
66 }
67
68 @BeforeTest
69 public void setup() {
70 jcmd = new ManagementAgentJcmd(TEST_APP_NAME, false);
71 }
72
73 @BeforeMethod
74 public void startTestApp() throws Exception {
75 testApp = ProcessTools.startProcess(
76 TEST_APP_NAME, testAppPb,
77 (Predicate<String>)l->l.trim().equals("main enter")
78 );
79 }
80
81 @AfterMethod
82 public void stopTestApp() throws Exception {
83 testApp.getOutputStream().write(1);
84 testApp.getOutputStream().flush();
85 testApp.waitFor();
86 testApp = null;
87 }
88
89 /**
90 * The 'sun.management.JMXConnectorServer.remote.enabled' counter must not be
91 * exported if the remote agent is not enabled.
92 * @throws Exception
93 */
94 @Test
95 public void testNotInitializedRemote() throws Exception {
96 assertFalse(
97 getCounters().containsKey(REMOTE_STATUS_KEY),
98 "Unexpected occurrence of " + REMOTE_STATUS_KEY + " in perf counters"
99 );
100 }
101
102 /**
103 * After enabling the remote agent the 'sun.management.JMXConnectorServer.remote.enabled'
104 * counter will be exported with value of '0' - corresponding to the actual
105 * version of the associated remote connector perf counters.
106 * @throws Exception
107 */
108 @Test
109 public void testRemoteEnabled() throws Exception {
110 while (true) {
111 try {
112 int[] ports = PortAllocator.allocatePorts(1);
113 jcmd.start(
114 "jmxremote.port=" + ports[0],
115 "jmxremote.authenticate=false",
116 "jmxremote.ssl=false"
117 );
118 String v = getCounters().getProperty(REMOTE_STATUS_KEY);
119 assertNotNull(v);
120 assertEquals("0", v);
121 return;
122 } catch (BindException e) {
123 System.out.println("Failed to allocate ports. Retrying ...");
124 }
125 }
126 }
127
128 /**
129 * After disabling the remote agent the value of 'sun.management.JMXConnectorServer.remote.enabled'
130 * counter will become '-1'.
131 * @throws Exception
132 */
133 @Test
134 public void testRemoteDisabled() throws Exception {
135 while (true) {
136 try {
137 int[] ports = PortAllocator.allocatePorts(1);
138 jcmd.start(
139 "jmxremote.port=" + ports[0],
140 "jmxremote.authenticate=false",
141 "jmxremote.ssl=false"
142 );
143 jcmd.stop();
144 String v = getCounters().getProperty(REMOTE_STATUS_KEY);
145 assertNotNull(v);
146 assertEquals("-1", v);
147 return;
148 } catch (BindException e) {
149 System.out.println("Failed to allocate ports. Retrying ...");
150 }
151 }
152 }
153
154 /**
155 * Each subsequent re-enablement of the remote agent must keep the value of
156 * 'sun.management.JMXConnectorServer.remote.enabled' counter in sync with
157 * the actual version of the associated remote connector perf counters.
158 * @throws Exception
159 */
160 @Test
161 public void testRemoteReEnabled() throws Exception {
162 while (true) {
163 try {
164 int[] ports = PortAllocator.allocatePorts(1);
165 jcmd.start(
166 "jmxremote.port=" + ports[0],
167 "jmxremote.authenticate=false",
168 "jmxremote.ssl=false"
169 );
170 jcmd.stop();
171 jcmd.start(
172 "jmxremote.port=" + ports[0],
173 "jmxremote.authenticate=false",
174 "jmxremote.ssl=false"
175 );
176
177 String v = getCounters().getProperty(REMOTE_STATUS_KEY);
178 assertNotNull(v);
179 assertEquals("1", v);
180 return;
181 } catch (BindException e) {
182 System.out.println("Failed to allocate ports. Retrying ...");
183 }
184 }
185 }
186
187 private Properties getCounters() throws IOException, InterruptedException {
188 return jcmd.perfCounters("sun\\.management\\.JMXConnectorServer\\..*");
189 }
190 }