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