[recent sources]

In xml.text/src/org/netbeans/modules/xml/text/syntax/dom/Tag.java, there is suspicious atomicLock() - there is a lot of
code between call to atomicLock() and try {} finally {atomicUnlock();}. If an exception occurred before the try block
starts, it would mean the Document would be locked forever. The try { block should start right after atomicLock()
(unless some statement needs to be place between the atomicLock() and the try block, but that is very rare).