1)   Bokai Java Barcode Server Component (servlet) 3.1
Bokai barcode image generator Java component generates barcode images in PNG or JPEG format without requiring your web server to run in graphics mode (X-Window). Your HTML pages can embed a bar code image URL (sevlet or JSP file) without programming.

 2)   Nuxeo EP 5.1.2.GA
Nuxeo EP is an open source Enterprise Content Management (ECM) platform, based on modern Java EE standards and components. It can be used to implement document management, knowledge management, digital assets management or workflow applications.

 3)   NeoLoad 1.1
Load Testing Tool for Web Applications. Simulates hundreds of users to answer these questions: how many users does my site handle? Will my site crash under load? What are the response times? Easy to use, no scripting but can design advanced scenarios