Tools Java : profiler -> yourkit

http://www.yourkit.com/download/index.jsp

General:

On demand profiling

Easiest installation and configuration

Unlimited profiling for one fee

Profiling of J2EE applications

Ability to profile in production environment

Full Java 5 support

Full Java 6 support

Full Java 7 support

Rich multiplatform support

32-bit and 64-bit Java support

Telemetry

Automated profiling: profiler API and command line tool

Filters in CPU and memory views

Improved learnability

Remote profiling

Ability to export profiling results

Summary, snapshot annotation and automatic deobfuscation