[jira] [Closed] (AMQ-4715) Memory issue with ActiveMQ in java

["Timothy Bish (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMQ-4715?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Timothy Bish closed AMQ-4715.
-----------------------------

    Resolution: Not A Problem

Shutting this down as its not an AMQ issue.  Move discussion to the mailing list please.
                
> Memory issue with ActiveMQ in java
> ----------------------------------
>
>                 Key: AMQ-4715
>                 URL: https://issues.apache.org/jira/browse/AMQ-4715
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.6.0, 5.7.0
>            Reporter: ritesh
>
> Every time when i start connection and create session i can see “java.exe” (in task manger) memory get increase by 1000 to 2000K that’s ok.
> Now, when i closed connection and session expecting to memory  go down by 1000 to 2000K but nothing happening.
> Here is my sample code.
> {code}
> public static void main(String[] args) {
>   try {
>     ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://localhost:61616");
>     Connection connection= connectionFactory.createConnection();
>     connection.start();          
>     for(int i=0;i<40;i++) {
>       Session session=  m_connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
>       Destination queueDestination = session.createQueue("TestQueue");
>       MessageProducer producer = session.createProducer(queueDestination);
>       producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
>       TextMessage textMessage = session.createTextMessage();
>       textMessage.setText(“some text”);
>       String jmsCorrelationId= UUID.randomUUID().toString();
>       textMessage.setJMSCorrelationID(m_jmsCorrelationId);
>       producer.send(textMessage);
>       if (producer != null) {
>          producer.close();
>          producer=null;
>       }
>       
>       if(m_session != null) {
>         session.close();
>         session=null;
>       }
>     } // end for loop
>     if (connection!=null) {
>       connection.close();
>     }
>   }
> }
> {code}
> If you will execute this program three to four times you will see significant memory get increase in task manger for “java.exe”.
> Thing most bothering me is that… after executing this program all allocated memory should get cleaned-up by GC but look like somehow it’s not happening.
> No idea what am I doing wrong?
> Please help me!

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