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Its some what related to your License or copy wirte related !! 
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Its some what related to your License or copy wirte related !!

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As a long-term Microsoft developer . . . increasingly I have felt like I am being sucked into their technology. &nbsp;This led me to explore the whole Oracle scene, in particular Glassfish, Netbeans IDE, etc.<br />
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Suppose I write an application that runs within Glassfish. &nbsp;Does that alone constitute a 'derived work', meaning that I would be obligated to redistribute all of my source code? &nbsp;Who gets to decided what a 'derived work' is?<br />
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Then again, maybe with Glassfish I'll be slowly sucked into full dependence on Oracle. &nbsp;In that case . . . is JBOSS a better open source technology path?<br />
<br />
Thanks.
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As a long-term Microsoft developer . . . increasingly I have felt like I am being sucked into their technology.  This led me to explore the whole Oracle scene, in particular Glassfish, Netbeans IDE, etc.

Suppose I write an application that runs within Glassfish.  Does that alone constitute a 'derived work', meaning that I would be obligated to redistribute all of my source code?  Who gets to decided what a 'derived work' is?

Then again, maybe with Glassfish I'll be slowly sucked into full dependence on Oracle.  In that case . . . is JBOSS a better open source technology path?

Thanks.

What does 'derived work' mean with respect to Glassfish server?

JavaServer Pages (JSP) allow the development of dynamically generated web pages. It uses the Java programming language; JSP pages are translated into servlets at runtime, with each servlet being cached and reused until the JSP is modified. JSP allows Java code to be interleaved with static web markup content, so the resulting page can be compiled and executed on the server to deliver the content.

Web development includes all aspects of presenting content on intranets and the Internet, including delivery development, protocols, languages and standards, server software, browser clients, databases and multimedia generation.

Web Development

Web development software is used to create websites for both the Internet and intranets. Software can be either locally installed or operated through a cloud interface, and ranges in complexity from simple text editors to full-fledged integrated development environments (IDEs) that include graphics, video, audio, scripting and database support.