[jira] [Created] (AMQ-4182) Memory Leak for ActiveMQBytesMessage with Compression as true

[Jeff Huang (JIRA)]

Jeff Huang created AMQ-4182:
-------------------------------

             Summary: Memory Leak for ActiveMQBytesMessage with Compression as 
true
                 Key: AMQ-4182
                 URL: https://issues.apache.org/jira/browse/AMQ-4182
             Project: ActiveMQ
          Issue Type: Bug
          Components: JMS client
    Affects Versions: 5.5.1
         Environment: Linux(Redhat 5.5), Windows 7
            Reporter: Jeff Huang


InflaterInputStream is supposed to close explicitly to release resource 
allocated by its JNI methods. In ActiveMQBytesMessage, dataIn property is 
disposed simply without closing it, which results in some weird memory leak 
that can't be detected from heap size. It can't be controlled by -Xmx or 
-XX:MaxDirectMemorySize.

Please run the following test program to verify the issue:

import java.util.concurrent.TimeUnit;

import javax.jms.BytesMessage;
import javax.jms.Connection;
import javax.jms.Session;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.command.ActiveMQBytesMessage;

/**
 * A simple test to verify memory leak in ActiveMQBytesMessage.
 */
public class Main
{
    public static void main(String[] args) throws Exception 
    {
        ActiveMQConnectionFactory connFactory = new 
ActiveMQConnectionFactory("vm://localhost");
        connFactory.setUseCompression(true);
        Connection conn = connFactory.createConnection();
        Session session = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
        BytesMessage message = session.createBytesMessage();
        
        message.writeBytes(new byte[1024]);

        ActiveMQBytesMessage m = (ActiveMQBytesMessage)message;
        if(!m.isCompressed())
        {
            throw new RuntimeException();
        }
        
        
        while (true)
        {
            for (int k = 0; k < 1024; ++k)
            {
                message.reset();
                byte[] data = new byte[1024];
                message.readBytes(data);
            }
            TimeUnit.MILLISECONDS.sleep(10);
        }
    }

}

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