YourKit Java Profiler is a CPU and memory profiler that makes it easy to solve wide range of CPU- and memory-related performance problems. It features automatic leak detection, powerful tools for the analysis of memory distribution, an object heap browser, comprehensive memory tests as part of your JUnit testing process, extremely low profiling overhead, transparent deobfuscation support, and integration with Eclipse, JBuilder, IntelliJ IDEA, NetBeans, and JDeveloper IDEs.

Changes

The loading time of CPU snapshots was greatly reduced. A problem with multiply byte-code instrumentation agents (JBoss, Geronimo) was fixed. Snapshots with CPU tracing results might lack invocation counts under some circumstances. Several problems in J2ME profiling were fixed. A problem with incomplete results in CPU snapshots was solved.

URL: Java Profiler - .NET Profiler - The profilers for Java and .NET professionals