JDK 1.6 update 7+ is delivered with visualvm; a powerful monitoring and profiling tool. Visualvm comes with a profiler, which is actually part of Netbeans. Visualvm is a Netbeans RCP application (about 10 MB), which can be extended with Netbeans modules / plugins. So Netbeans RCP becomes ubiquitous :-).
Web Apps, SPA, PWA with vanilla Java Script (ES 6+), CSS 3 and WebStandards only. As simple as possible, but not simpler. See you at: (Progressive) Web apps, Single Page Apps and WebStandards airhacks workshops at MUC airport, Winter Edition
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