I got it during IDE been run.

---
Product Version: NetBeans Platform 6.5 (Build 200903060201)
Java: 1.6.0_12; Java HotSpot(TM) Client VM 11.2-b01
System: Windows XP version 5.1 running on x86; Cp1251; ru_RU
Userdir: C:\Projects\NetBeans\trunk\javafx\build\testuserdir
---

SEVERE [org.openide.util.RequestProcessor]
java.lang.OutOfMemoryError: Java heap space
        at java.util.Arrays.copyOfRange(Arrays.java:3209)
        at java.lang.String.<init>(String.java:216)
        at java.lang.StringBuffer.toString(StringBuffer.java:585)
        at
org.netbeans.modules.autoupdate.updateprovider.AutoupdateCatalogParser.endElement(AutoupdateCatalogParser.java:270)
        at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:601)
        at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.endNamespaceScope(XMLDTDValidator.java:2077)
        at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.handleEndElement(XMLDTDValidator.java:2028)
        at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.endElement(XMLDTDValidator.java:901)
        at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1774)
        at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2930)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
        at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:807)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
        at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:107)
        at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
        at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
        at javax.xml.parsers.SAXParser.parse(SAXParser.java:395)
        at
org.netbeans.modules.autoupdate.updateprovider.AutoupdateCatalogParser.getUpdateItems(AutoupdateCatalogParser.java:148)
        at
org.netbeans.modules.autoupdate.updateprovider.AutoupdateCatalogProvider.getUpdateItems(AutoupdateCatalogProvider.java:110)
        at org.netbeans.modules.autoupdate.services.UpdateUnitFactory.appendUpdateItems(UpdateUnitFactory.java:170)
        at org.netbeans.modules.autoupdate.services.UpdateUnitFactory.getUpdateUnits(UpdateUnitFactory.java:140)
        at org.netbeans.modules.autoupdate.services.UpdateManagerImpl$Cache.<init>(UpdateManagerImpl.java:222)
        at org.netbeans.modules.autoupdate.services.UpdateManagerImpl.getCache(UpdateManagerImpl.java:196)
        at org.netbeans.modules.autoupdate.services.UpdateManagerImpl.getUpdateUnits(UpdateManagerImpl.java:93)
        at org.netbeans.api.autoupdate.UpdateManager.getUpdateUnits(UpdateManager.java:100)
        at
org.netbeans.modules.autoupdate.ui.actions.AutoupdateCheckScheduler.checkUpdateElements(AutoupdateCheckScheduler.java:198)
        at org.netbeans.modules.autoupdate.ui.actions.AutoupdateCheckScheduler$5.run(AutoupdateCheckScheduler.java:177)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572)
[catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)
Internal HTTP server stopped