Getting Chrome Browser in java Applications
There is currently no way getting the UI portion into a Java. You should consider just using barebone WebKit + V8 with many JNI calls. You could consider writing a JNA wrapper around those.
To make your JNA easier, you can wrap Chromium Embedded Framework
Try javacef. This is open source project. This project can embed Chromium browser in Java SWT with multitab browser support, cookies manipulation, tab settings, printing, back, forward, refresh buttons and enhanced file download. This project is based on Chromium Embedded Framework (CEF).