VisualVM - All-in-One Java Troubleshooting Tool. 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.
Statistics and analytics Java EE 6 software for blogs (tested with roller) and webapps. It is a vanilla Java EE 6 (REST/JAX-RS, CDI, EJB, JPA) app, tested on Glassfish v3.1, built with Maven 3 / hudson and developed with NetBeans 7. X-ray is the sample app of the "Real World Night Hacks" book.