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.
When I tried to build latest sources (12 Mar, 2001), I realized that when starting the IDE for the second time from the same user directory, it gets stuck waiting at http connection. I investigated it further and realized that the IDE is trying to access http://www.netbeans.org/dtds/toolbar.dtd instead the local copy of the DTD. There is probably some problem with registration of DTDs.
*** This issue has been marked as a duplicate of 10134 ***
Really duplicate.
Resolved for 3.4.x or earlier, no new info since then -> closing.