jdk/test/sun/management/jmxremote/startstop/JMXStatusPerfCountersTest.java
changeset 30803 17e70318af8b
child 31907 cafb1bf49cfb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/management/jmxremote/startstop/JMXStatusPerfCountersTest.java	Fri Apr 03 15:39:38 2015 +0200
@@ -0,0 +1,188 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.io.IOException;
+import java.net.BindException;
+import java.util.Properties;
+import java.util.function.Predicate;
+import static org.testng.Assert.*;
+import org.testng.annotations.AfterMethod;
+import org.testng.annotations.BeforeClass;
+import org.testng.annotations.BeforeMethod;
+import org.testng.annotations.BeforeTest;
+import org.testng.annotations.Test;
+
+import jdk.testlibrary.ProcessTools;
+
+
+/**
+ * @test
+ * @bug 8075926
+ * @summary Makes sure that the current management agent status is reflected
+ *          in the related performance counters.
+ * @library /lib/testlibrary
+ * @build jdk.testlibrary.* PortAllocator TestApp ManagementAgentJcmd
+ * @run testng/othervm -XX:+UsePerfData JMXStatusPerfCountersTest
+ */
+public class JMXStatusPerfCountersTest {
+    private final static String TEST_APP_NAME = "TestApp";
+
+    private final static String REMOTE_STATUS_KEY = "sun.management.JMXConnectorServer.remote.enabled";
+
+    private static ProcessBuilder testAppPb;
+    private Process testApp;
+
+    private ManagementAgentJcmd jcmd;
+
+    @BeforeClass
+    public static void setupClass() throws Exception {
+        testAppPb = ProcessTools.createJavaProcessBuilder(
+            "-XX:+UsePerfData",
+            "-cp", System.getProperty("test.class.path"),
+            TEST_APP_NAME
+        );
+    }
+
+    @BeforeTest
+    public void setup() {
+        jcmd = new ManagementAgentJcmd(TEST_APP_NAME, false);
+    }
+
+    @BeforeMethod
+    public void startTestApp() throws Exception {
+        testApp = ProcessTools.startProcess(
+            TEST_APP_NAME, testAppPb,
+            (Predicate<String>)l->l.trim().equals("main enter")
+        );
+    }
+
+    @AfterMethod
+    public void stopTestApp() throws Exception {
+        testApp.getOutputStream().write(1);
+        testApp.getOutputStream().flush();
+        testApp.waitFor();
+        testApp = null;
+    }
+
+    /**
+     * The 'sun.management.JMXConnectorServer.remote.enabled' counter must not be
+     * exported if the remote agent is not enabled.
+     * @throws Exception
+     */
+    @Test
+    public void testNotInitializedRemote() throws Exception {
+        assertFalse(
+            getCounters().containsKey(REMOTE_STATUS_KEY),
+            "Unexpected occurrence of " + REMOTE_STATUS_KEY + " in perf counters"
+        );
+    }
+
+    /**
+     * After enabling the remote agent the 'sun.management.JMXConnectorServer.remote.enabled'
+     * counter will be exported with value of '0' - corresponding to the actual
+     * version of the associated remote connector perf counters.
+     * @throws Exception
+     */
+    @Test
+    public void testRemoteEnabled() throws Exception {
+        while (true) {
+            try {
+                int[] ports = PortAllocator.allocatePorts(1);
+                jcmd.start(
+                    "jmxremote.port=" + ports[0],
+                    "jmxremote.authenticate=false",
+                    "jmxremote.ssl=false"
+                );
+                String v = getCounters().getProperty(REMOTE_STATUS_KEY);
+                assertNotNull(v);
+                assertEquals("0", v);
+                return;
+            } catch (BindException e) {
+                System.out.println("Failed to allocate ports. Retrying ...");
+            }
+        }
+    }
+
+    /**
+     * After disabling the remote agent the value of 'sun.management.JMXConnectorServer.remote.enabled'
+     * counter will become '-1'.
+     * @throws Exception
+     */
+    @Test
+    public void testRemoteDisabled() throws Exception {
+        while (true) {
+            try {
+                int[] ports = PortAllocator.allocatePorts(1);
+                jcmd.start(
+                    "jmxremote.port=" + ports[0],
+                    "jmxremote.authenticate=false",
+                    "jmxremote.ssl=false"
+                );
+                jcmd.stop();
+                String v = getCounters().getProperty(REMOTE_STATUS_KEY);
+                assertNotNull(v);
+                assertEquals("-1", v);
+                return;
+            } catch (BindException e) {
+                System.out.println("Failed to allocate ports. Retrying ...");
+            }
+        }
+    }
+
+    /**
+     * Each subsequent re-enablement of the remote agent must keep the value of
+     * 'sun.management.JMXConnectorServer.remote.enabled' counter in sync with
+     * the actual version of the associated remote connector perf counters.
+     * @throws Exception
+     */
+    @Test
+    public void testRemoteReEnabled() throws Exception {
+        while (true) {
+            try {
+                int[] ports = PortAllocator.allocatePorts(1);
+                jcmd.start(
+                    "jmxremote.port=" + ports[0],
+                    "jmxremote.authenticate=false",
+                    "jmxremote.ssl=false"
+                );
+                jcmd.stop();
+                jcmd.start(
+                    "jmxremote.port=" + ports[0],
+                    "jmxremote.authenticate=false",
+                    "jmxremote.ssl=false"
+                );
+
+                String v = getCounters().getProperty(REMOTE_STATUS_KEY);
+                assertNotNull(v);
+                assertEquals("1", v);
+                return;
+            } catch (BindException e) {
+                System.out.println("Failed to allocate ports. Retrying ...");
+            }
+        }
+    }
+
+    private Properties getCounters() throws IOException, InterruptedException {
+        return jcmd.perfCounters("sun\\.management\\.JMXConnectorServer\\..*");
+    }
+}
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