The section on VisualVM integration looks strange, the program name between brackets (jvisualvm) is put on its own line. The XML has:
<title>VisualVM integration through the NetBeans framework</title>
format="linespecific">jvisualvm</programlisting>) provides a
graphical overview of any local or remotely running Java
application, letting you monitor all running threads, classes,
and objects allocated by the application by taking thread dumps,
heap dumps, and other lightweight profiling tools.</para>
The programlisting tag should be a filename tag (and shouldn't have a format attribute so that it the sentence is all on the same line.
That's leftover markup from the wiki2xml conversion process, missed in the manual stage of that conversion, thanks for the catch. Rather than being <filename/>, I think that is either <command/> or <package/>; I went for the former based on context.