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.
Thread dump shows CloneableEditor$DoInitialize.initNonVisual in RP calling NbEditorKit.call then JEditorPane.<init>, clearly a violation of Swing threading semantics.
Created attachment 89455 [details] Thread dump
In 091014/7d639b576221. Possibly caused by issue #171713.
*** This issue has been marked as a duplicate of 174408 ***