1 /*
2 * Copyright (c) 2015, 2018, 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.test.lib.process.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 * @library /test/lib
47 *
48 * @build jdk.testlibrary.* PortAllocator TestApp ManagementAgentJcmd
49 * @run testng/othervm -XX:+UsePerfData JMXStatusPerfCountersTest
50 */
51 public class JMXStatusPerfCountersTest {
52 private final static String TEST_APP_NAME = "TestApp";
53
54 private final static String REMOTE_STATUS_KEY = "sun.management.JMXConnectorServer.remote.enabled";
55
56 private static ProcessBuilder testAppPb;
57 private Process testApp;
58
59 private ManagementAgentJcmd jcmd;
60
61 @BeforeClass
62 public static void setupClass() throws Exception {
63 testAppPb = ProcessTools.createJavaProcessBuilder(
64 "-XX:+UsePerfData",
65 "-cp", System.getProperty("test.class.path"),
66 TEST_APP_NAME
67 );
68 }
69
70 @BeforeTest
71 public void setup() {
72 jcmd = new ManagementAgentJcmd(TEST_APP_NAME, false);
73 }
74
75 @BeforeMethod
76 public void startTestApp() throws Exception {
77 testApp = ProcessTools.startProcess(
78 TEST_APP_NAME, testAppPb,
79 (Predicate<String>)l->l.trim().equals("main enter")
80 );
81 }
82
83 @AfterMethod
84 public void stopTestApp() throws Exception {
85 testApp.getOutputStream().write(1);
86 testApp.getOutputStream().flush();
87 testApp.waitFor();
88 testApp = null;
89 }
90
91 /**
92 * The 'sun.management.JMXConnectorServer.remote.enabled' counter must not be
93 * exported if the remote agent is not enabled.
94 * @throws Exception
95 */
96 @Test
97 public void testNotInitializedRemote() throws Exception {
98 assertFalse(
99 getCounters().containsKey(REMOTE_STATUS_KEY),
100 "Unexpected occurrence of " + REMOTE_STATUS_KEY + " in perf counters"
101 );
102 }
103
104 /**
105 * After enabling the remote agent the 'sun.management.JMXConnectorServer.remote.enabled'
106 * counter will be exported with value of '0' - corresponding to the actual
107 * version of the associated remote connector perf counters.
108 * @throws Exception
109 */
110 @Test
111 public void testRemoteEnabled() throws Exception {
112 while (true) {
113 try {
114 int[] ports = PortAllocator.allocatePorts(1);
115 jcmd.start(
116 "jmxremote.port=" + ports[0],
117 "jmxremote.authenticate=false",
118 "jmxremote.ssl=false"
119 );
120 String v = getCounters().getProperty(REMOTE_STATUS_KEY);
121 assertNotNull(v);
122 assertEquals("0", v);
123 return;
124 } catch (BindException e) {
125 System.out.println("Failed to allocate ports. Retrying ...");
126 }
127 }
128 }
129
130 /**
131 * After disabling the remote agent the value of 'sun.management.JMXConnectorServer.remote.enabled'
132 * counter will become '-1'.
133 * @throws Exception
134 */
135 @Test
136 public void testRemoteDisabled() throws Exception {
137 while (true) {
138 try {
139 int[] ports = PortAllocator.allocatePorts(1);
140 jcmd.start(
141 "jmxremote.port=" + ports[0],
142 "jmxremote.authenticate=false",
143 "jmxremote.ssl=false"
144 );
145 jcmd.stop();
146 String v = getCounters().getProperty(REMOTE_STATUS_KEY);
147 assertNotNull(v);
148 assertEquals("-1", v);
149 return;
150 } catch (BindException e) {
151 System.out.println("Failed to allocate ports. Retrying ...");
152 }
153 }
154 }
155
156 /**
157 * Each subsequent re-enablement of the remote agent must keep the value of
158 * 'sun.management.JMXConnectorServer.remote.enabled' counter in sync with
159 * the actual version of the associated remote connector perf counters.
160 * @throws Exception
161 */
162 @Test
163 public void testRemoteReEnabled() throws Exception {
164 while (true) {
165 try {
166 int[] ports = PortAllocator.allocatePorts(1);
167 jcmd.start(
168 "jmxremote.port=" + ports[0],
169 "jmxremote.authenticate=false",
170 "jmxremote.ssl=false"
171 );
172 jcmd.stop();
173 jcmd.start(
174 "jmxremote.port=" + ports[0],
175 "jmxremote.authenticate=false",
176 "jmxremote.ssl=false"
177 );
178
179 String v = getCounters().getProperty(REMOTE_STATUS_KEY);
180 assertNotNull(v);
181 assertEquals("1", v);
182 return;
183 } catch (BindException e) {
184 System.out.println("Failed to allocate ports. Retrying ...");
185 }
186 }
187 }
188
189 private Properties getCounters() throws IOException, InterruptedException {
190 return jcmd.perfCounters("sun\\.management\\.JMXConnectorServer\\..*");
191 }
192 }