Ref. Shallow heap showing very high value in MAT

Question

I am first time using MAT, i have gone through Google I/O video for memory management. But, now when it comes to practical, i am seeing a column name Ref. Shallow Heap in merge shortest path to GC roots(Exclude weak reference). One of my application component is showing very high value in this column. So, please tell me what does it signify and how it is different from shallow heap.

Answer 1

Have a look at the description of shallow vs retained heap here http://help.eclipse.org/indigo/topic/org.eclipse.mat.ui.help/concepts/shallowretainedheap.html

furthermore see the explanation specific to your question here http://www.eclipse.org/forums/index.php/t/210895/