Develop and integrate as part of the core Java Bundle an XSLT Debugger.
Related project: http://java.net/project/netbeans-xslt-debugger.
Note: XSLT is commonly used with XML files and this feature would be beneficial to have readily available.
Consider developing an XQuery Debugger as well.
Altova XMLSpy XSLT Debugger
*** Bug 32020 has been marked as a duplicate of this bug. ***
*** Bug 35980 has been marked as a duplicate of this bug. ***
I see the XSLT Debugger plugin (1.3.9) available in NetBeans 6.8 but not NetBeans 6.9 Beta.