JAXB2 Maven Plugin is the most advanced and feature-full Maven plugin for XML Schema compilation. This Maven plugin wraps and enhances the JAXB Schema Compiler (XJC) and allows compiling XML Schemas (as well as WSDL, DTDs, RELAX NG) into Java classes in Maven builds.
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.