OutOfMemory after redeploy services
-----------------------------------

                 Key: AXIS2-5233
                 URL: https://issues.apache.org/jira/browse/AXIS2-5233
             Project: Axis2
          Issue Type: Bug
          Components: kernel
    Affects Versions: 1.6.1
            Reporter: Oleh


We have OutOfMemory error after redeploy services.

PROBLEM:

Class org.apache.axis2.deployment.DeploymentEngine has scheduler.
If (hotdeployment = true) we have startSearch in loadServices method.
But we don't clean old scheduler in startSearch method !
Old SchedulerTask has old RepositoryListener (old WSInfoList)
Old WSInfoList has all old services !
The scheduler starts thread as deamon.
The Thread is running..running.....
New deploy -> new Thread
The Thread has old data (WSInfoList) and may be GC don't clear memory (Thread 
has link to data)
We have result:OutOfMemory :(

SOLUTION 1 
Fixed class org.apache.axis2.deployment.DeploymentEngine
Method startSearch(RepositoryListener listener)  

Old Variant

    protected void startSearch(RepositoryListener listener) {
        scheduler = new Scheduler();

        scheduler.schedule(new SchedulerTask(listener), new 
DeploymentIterator());
    }

Fix Variant
    protected void startSearch(RepositoryListener listener) {
        if (scheduler != null) {
            scheduler.cleanup(); // May be it is very important !!! : )
        }
        scheduler = new Scheduler();

        scheduler.schedule(new SchedulerTask(listener), new 
DeploymentIterator());
    }

SOLUTION 2 (temp) - Disable Hot Deployment

File axis2.xml

    <parameter name="hotdeployment">false</parameter>



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