Deadlock in SQL Editor when closing editor

In the attached thread dump a deadlock can be found, when the SQL editor is closed.

The AWT thread holds the SQLEditorSupport lock, then call into a RequestProcessor and it is assumed, that that request processor is "org.openide.text Document Processing". That in turn tries to acquire the SQLEditorSupport lock and thus prevents progress.

Suggested solution: Untangle the locks and separate the lock protecting the logger from the object lock.