| /* |
| * Copyright (c) 2021, Red Hat, Inc. |
| * 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. |
| */ |
| |
| /* |
| * @test |
| * @bug 8258836 |
| * @summary JNI local refs exceed capacity getDiagnosticCommandInfo |
| * @library /test/lib |
| * @run main/othervm DcmdMBeanTestCheckJni |
| */ |
| |
| import java.lang.management.ManagementFactory; |
| import javax.management.MBeanServer; |
| import javax.management.ObjectName; |
| import javax.management.MBeanServerConnection; |
| import javax.management.remote.JMXConnectorFactory; |
| import javax.management.remote.JMXConnector; |
| import javax.management.remote.JMXConnectorServerFactory; |
| import javax.management.remote.JMXServiceURL; |
| import javax.management.remote.JMXConnectorServer; |
| |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.process.ProcessTools; |
| |
| public class DcmdMBeanTestCheckJni { |
| |
| public static void main(String[] args) throws Exception { |
| OutputAnalyzer out = ProcessTools.executeTestJvm( |
| "-Xcheck:jni", |
| DcmdMBeanRunner.class.getName()); |
| out.shouldNotMatch("WARNING: JNI local refs: \\d+, exceeds capacity: \\d+") |
| .shouldContain("DcmdMBeanRunner COMPLETE") |
| .shouldHaveExitValue(0); |
| } |
| |
| } |
| |
| class DcmdMBeanRunner { |
| |
| private static final String HOTSPOT_DIAGNOSTIC_MXBEAN_NAME = |
| "com.sun.management:type=DiagnosticCommand"; |
| |
| public static void main(String[] args) throws Exception { |
| MBeanServer mbs = ManagementFactory.getPlatformMBeanServer(); |
| JMXServiceURL url = new JMXServiceURL("rmi", null, 0); |
| JMXConnectorServer cs = null; |
| JMXConnector cc = null; |
| try { |
| cs = JMXConnectorServerFactory.newJMXConnectorServer(url, null, mbs); |
| cs.start(); |
| JMXServiceURL addr = cs.getAddress(); |
| cc = JMXConnectorFactory.connect(addr); |
| MBeanServerConnection mbsc = cc.getMBeanServerConnection(); |
| ObjectName name = new ObjectName(HOTSPOT_DIAGNOSTIC_MXBEAN_NAME); |
| System.out.println("DiagnosticCommand MBean: " + name); |
| System.out.println("DcmdMBeanRunner COMPLETE"); |
| } finally { |
| try { |
| cc.close(); |
| cs.stop(); |
| } catch (Exception e) { /* ignored */ } |
| } |
| } |
| } |