Attachment 911196 Details for Bug 1112032 – reproducer

reproducer

JmxSpammer.java (text/x-java), 1.71 KB, created by James Livingston on 2014-06-22 22:40:40 UTC

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Creator: James Livingston

Created: 2014-06-22 22:40:40 UTC

Size: 1.71 KB

patch

obsolete

>package jmxspammer;
>
>import java.util.HashMap;
>
>import javax.management.MBeanServerConnection;
>import javax.management.ObjectName;
>import javax.management.remote.JMXConnector;
>import javax.management.remote.JMXConnectorFactory;
>import javax.management.remote.JMXServiceURL;
>
>public class JmxSpammer {
>    static final int COUNT = 100;
>    static final int ITERATIONS = 1000;
>
>    public static void main(String[] args) throws Exception {
>        JMXServiceURL url = new JMXServiceURL("service:jmx:remoting-jmx://localhost:9999");
>        JMXConnector jmxc = JMXConnectorFactory.connect(url, new HashMap());
>        final MBeanServerConnection mbeanServerConn = jmxc.getMBeanServerConnection();
>
>        final ObjectName on = new ObjectName("java.lang:type=Runtime");
>
>        Thread[] threads = new Thread[COUNT];
>        for (int i = 0; i < COUNT; i++) {
>            threads[i] = new Thread(new Spammer(i, mbeanServerConn, on));
>            threads[i].start();
>        }
>
>        for (int i = 0; i < COUNT; i++) {
>            threads[i].join();
>        }
>    }
>
>    static class Spammer implements Runnable {
>        final int thread;
>        final MBeanServerConnection conn;
>        final ObjectName name;
>
>        public Spammer(int thread, MBeanServerConnection conn, ObjectName name) {
>            this.thread = thread;
>            this.conn = conn;
>            this.name = name;
>        }
>
>        public void run() {
>            try {
>                for (int i = 0; i < ITERATIONS; i++) {
>                    //System.out.println(thread + "/" + i);
>                    conn.getAttribute(name, "SpecVersion");
>                }
>            } catch (Exception e) {
>                throw new RuntimeException(e);
>            }
>        }
>    }
>}

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Attachments on bug 1112032: 911196