This Bugzilla instance is a read-only archive of historic NetBeans bug reports. To report a bug in NetBeans please follow the project's instructions for reporting issues.
Build 200412011810 (RC2) XML editor context menu has item 'Open' - it does nothing (just opens already opened XML file) - it should be probably removed. See similar issue 52101 for web.xml.
There is no such item. Probably fixed by Milan.
Verified.