CollectionSpy

CollectionSpy is the only Java profiler to focus exclusively on visualising and analysing your program's Java Collections Framework usage. Discover bugs and other defects in your program's runtime usage of the Java Collection Framework. View realtime display of all live collections, including all API accesses. Instantly detect hashing collection corruption due to mutating elements. See which threads access which collections, when and how. Detailed feature descriptions and demo videos can be found on our site.

Requirements:

Java platform version: minimum 1.5 (for profiled apps), 1.6 (preferred 1.6.0_12) for CollectionSpy.

Limitations:

Only allows profiling sessions of 10 minutes