openfire 3.8.2

Friends! help me understand. Openfire is installed on windows server 2008 x64. created the file openfired.vmoptions. here is the content "-verbose: cps-Xms1048m,-Xmx1048m,-Xss4m;-Xmn256m;-Xmo512m". But it gives the error:

12.08.2013 8:55:16 net.kano.joscar.ratelim.RateClassMonitorImpl updateRateInfo

WARNING: Rate class 1 is no longer rate-limited, according to server

[GC 312485K->103003K(1046976K), 0.0435093 secs]

[GC 312795K->104512K(1046976K), 0.0536087 secs]

[GC 314304K->106499K(1046976K), 0.0651805 secs]

[GC 316291K->107799K(1046976K), 0.0646612 secs]

[GC 317591K->108884K(1046976K), 0.0574552 secs]

[GC 318676K->109806K(1046976K), 0.0579818 secs]

[GC 319598K->110502K(1046976K), 0.0378574 secs]

[GC 320294K->112227K(1046976K), 0.0564500 secs]

[GC 322019K->112544K(1046976K), 0.0513625 secs]

Exception in thread "Jetty-QTP-AdminConsole-28" java.lang.OutOfMemoryError: unable to create new native thread

          at java.lang.Thread.start0(Native Method)

          at java.lang.Thread.start(Unknown Source)

          at org.eclipse.jetty.util.thread.QueuedThreadPool.startThread(QueuedThreadPool.jav a:435)

          at org.eclipse.jetty.util.thread.QueuedThreadPool.dispatch(QueuedThreadPool.java:3 61)

          at org.eclipse.jetty.server.nio.SelectChannelConnector$ConnectorSelectorManager.di spatch(SelectChannelConnector.java:345)

          at org.eclipse.jetty.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.jav a:707)

          at org.eclipse.jetty.io.nio.SelectorManager$1.run(SelectorManager.java:277)

          at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598 )

          at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)

          at java.lang.Thread.run(Unknown Source)

help! to understand what is not working