Merged paths
'Merged paths' view is a tool for examining how objects are retained.
It is especially useful for analyzing objects of classes with a great number of instances, such as
int[], System.String etc.
'Merged paths' is similar to 'Paths from GC roots' view; however, it shows not paths through individual objects, but paths from multiple objects grouped by class.
For example, see the picture below.
The 'Merged paths' view shows that the memory hold by Hashtable/bucket[] instances is mostly retained by
Hashtable instances, which in their turn are retained by
CopyOnWriteHashtable and BuildItem.

