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 * @key intermittent
42 * @summary Makes sure that the current management agent status is reflected
43 * in the related performance counters.
44 *
45 * @library /lib/testlibrary
46 *
47 * @build jdk.testlibrary.* PortAllocator TestApp ManagementAgentJcmd
48 * @run testng/othervm -XX:+UsePerfData JMXStatusPerfCountersTest
49 */
50 public class JMXStatusPerfCountersTest {
51 private final static String TEST_APP_NAME = "TestApp";
52
53 private final static String REMOTE_STATUS_KEY = "sun.management.JMXConnectorServer.remote.enabled";
54
55 private static ProcessBuilder testAppPb;
56 private Process testApp;
57
58 private ManagementAgentJcmd jcmd;
59
60 @BeforeClass
61 public static void setupClass() throws Exception {
62 testAppPb = ProcessTools.createJavaProcessBuilder(
63 "-XX:+UsePerfData",
64 "-cp", System.getProperty("test.class.path"),
65 TEST_APP_NAME
66 );
67 }
68
69 @BeforeTest
70 public void setup() {
71 jcmd = new ManagementAgentJcmd(TEST_APP_NAME, false);
72 }
73
74 @BeforeMethod
75 public void startTestApp() throws Exception {
76 testApp = ProcessTools.startProcess(
77 TEST_APP_NAME, testAppPb,
78 (Predicate<String>)l->l.trim().equals("main enter")
79 );
80 }
81
82 @AfterMethod
83 public void stopTestApp() throws Exception {
84 testApp.getOutputStream().write(1);
85 testApp.getOutputStream().flush();
86 testApp.waitFor();
87 testApp = null;
88 }
89
90 /**
91 * The 'sun.management.JMXConnectorServer.remote.enabled' counter must not be
92 * exported if the remote agent is not enabled.
93 * @throws Exception
94 */
95 @Test
96 public void testNotInitializedRemote() throws Exception {
97 assertFalse(
98 getCounters().containsKey(REMOTE_STATUS_KEY),
99 "Unexpected occurrence of " + REMOTE_STATUS_KEY + " in perf counters"
100 );
101 }
102
103 /**
104 * After enabling the remote agent the 'sun.management.JMXConnectorServer.remote.enabled'
105 * counter will be exported with value of '0' - corresponding to the actual
106 * version of the associated remote connector perf counters.
107 * @throws Exception
108 */
109 @Test
110 public void testRemoteEnabled() throws Exception {
111 while (true) {
112 try {
113 int[] ports = PortAllocator.allocatePorts(1);
114 jcmd.start(
115 "jmxremote.port=" + ports[0],
116 "jmxremote.authenticate=false",
117 "jmxremote.ssl=false"
118 );
119 String v = getCounters().getProperty(REMOTE_STATUS_KEY);
120 assertNotNull(v);
121 assertEquals("0", v);
122 return;
123 } catch (BindException e) {
124 System.out.println("Failed to allocate ports. Retrying ...");
125 }
126 }
127 }
128
129 /**
130 * After disabling the remote agent the value of 'sun.management.JMXConnectorServer.remote.enabled'
131 * counter will become '-1'.
132 * @throws Exception
133 */
134 @Test
135 public void testRemoteDisabled() throws Exception {
136 while (true) {
137 try {
138 int[] ports = PortAllocator.allocatePorts(1);
139 jcmd.start(
140 "jmxremote.port=" + ports[0],
141 "jmxremote.authenticate=false",
142 "jmxremote.ssl=false"
143 );
144 jcmd.stop();
145 String v = getCounters().getProperty(REMOTE_STATUS_KEY);
146 assertNotNull(v);
147 assertEquals("-1", v);
148 return;
149 } catch (BindException e) {
150 System.out.println("Failed to allocate ports. Retrying ...");
151 }
152 }
153 }
154
155 /**
156 * Each subsequent re-enablement of the remote agent must keep the value of
157 * 'sun.management.JMXConnectorServer.remote.enabled' counter in sync with
158 * the actual version of the associated remote connector perf counters.
159 * @throws Exception
160 */
161 @Test
162 public void testRemoteReEnabled() throws Exception {
163 while (true) {
164 try {
165 int[] ports = PortAllocator.allocatePorts(1);
166 jcmd.start(
167 "jmxremote.port=" + ports[0],
168 "jmxremote.authenticate=false",
169 "jmxremote.ssl=false"
170 );
171 jcmd.stop();
172 jcmd.start(
173 "jmxremote.port=" + ports[0],
174 "jmxremote.authenticate=false",
175 "jmxremote.ssl=false"
176 );
177
178 String v = getCounters().getProperty(REMOTE_STATUS_KEY);
179 assertNotNull(v);
180 assertEquals("1", v);
181 return;
182 } catch (BindException e) {
183 System.out.println("Failed to allocate ports. Retrying ...");
184 }
185 }
186 }
187
188 private Properties getCounters() throws IOException, InterruptedException {
189 return jcmd.perfCounters("sun\\.management\\.JMXConnectorServer\\..*");
190 }
191 }