Q: How do I start using and learning Echo?
A: Visit the Echo Tutorial.
Q: What are the server requirements to host an Echo-based application?
A: A Java Servlet Container implementing the Servlet 2.2 Specification is required to host an Echo-based application. The Java Virtual Machine must be compatible with JDK 1.2. (Sun 1.3 and 1.4 JDKs as well as the IBM 1.3 JDK are known to work).
Q: What browser platforms are supported by Echo?
Q: How is Echo licensed?
A: Echo is licensed under the terms of the open-source GNU Lesser General Public License (LGPL). The terms of the LGPL license provide software developers with the ability to use the product royalty free to develop both open-source and closed-source (proprietary) applications. Developers may also modify the source code to the Echo framework itself, but in this case are required to submit their changes back to the community.
Q: Can proprietary applications be created using the Echo framework?
A: Yes, proprietary applications can be created using the Echo framework. Echo JAR files may be distributed with proprietary, closed-source applications. Echo is licensed under the GNU LGPL which does not impose any licensing requirements on applications that dynamically link to it. If you have any concerns over creating commercial software that uses LGPL libraries, please feel free to contact us.
Q: Can proprietary components be created and sold for the Echo framework?
A: Yes, proprietary components can be created and sold for the Echo framework. The LGPL does not impose any restrictions on the licensing of your product. The LGPL license requires that you publish source code only if you download and alter the source code of the Echo framework itself.
Q: What free support options are available?
A: Support for the Echo framework is freely available from the Echo development community. The best place to obtain free support is by joining the Echo Developer Forums and asking a question in the Help and Support forum.
A: Yes, NextApp provides commercial support for Echo.
Q: How do I report a bug?
A: Visit http://bugs.nextapp.com.
Q: I encountered a server-side error in my application, what should I do?