VisualVM is a visual tool integrating several commandline JDK tools and lightweight profiling capabilities. Designed for both production and development time use, it further enhances the capability of monitoring and performance analysis for the Java SE platform.
Glassbox is a troubleshooting agent for Java applications that automatically
diagnoses common problems.
Because Glassbox’s troubleshooting knowledge is built in, anyone can isolate a failing connection or a slow-running query instantly. You don’t need to analyze log files or graphs. Just one click, and Glassbox tells you in plain English what broke.