java - Accessing object fields with VisualVM not working -


i'm using visualvm 1.3.8 analyze heap dump , following query shows 0 results:

select s java.lang.string s s.count >= 0 

doing select s java.lang.string shows several strings of size >= 0 don't see why wouldn't work. applies when using other types of custom objects , trying query based on field (e.g. myobj.value). i'm wondering if bug or there in fact special way access fields not documented. i'm using openjdk 8 fwiw.

edit: query given example on visualvm site i'm having trouble understanding why doesn't work.