<html><head>
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   <title>Chapter&nbsp;3.&nbsp;Requirements</title><link rel="stylesheet" href="css/html.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.72.0"><link rel="start" href="index.html" title="Eclipse Gemini Blueprint Reference Guide"><link rel="up" href="introduction.html" title="Part&nbsp;I.&nbsp;Introduction"><link rel="prev" href="why-Spring DM.html" title="Chapter&nbsp;2.&nbsp;Why Gemini Blueprint?"><link rel="next" href="get-started.html" title="Chapter&nbsp;4.&nbsp;Getting Started"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="requirements"></a>Chapter&nbsp;3.&nbsp;Requirements</h2></div></div></div><p>Gemini Blueprint 2.x binaries require JDK level 7.0 or above,
      and <a xmlns:xlink="http://www.w3.org/1999/xlink" href="http://www2.osgi.org/Specifications/HomePage?section=2" target="_top">OSGi
      R5.x</a> (though R4.1 and even R4.0 might work) or above. For JDK &lt; 1.7, consider using Gemini Blueprint 1.x.
      For JDK &lt; 1.5, consider using Spring Dynamic Modules 1.x.
      </p><p>
      Bundles deployed for use with Gemini Blueprint should specify
      <code class="literal">"Bundle-ManifestVersion: 2"</code> in their manifest (require OSGi R4 behaviour).
      Note that for OSGi 4.2 specific functionality (such as the Blueprint Container),
      an appropriate container needs to be used.
      </p><p>
      We test against <a xmlns:xlink="http://www.w3.org/1999/xlink" href="http://www.eclipse.org/equinox/" target="_top">Equinox</a> and <a xmlns:xlink="http://www.w3.org/1999/xlink" href="http://felix.apache.org/" target="_top">Felix</a> as part of our
      release process.
      </p></div><div xmlns:fo="http://www.w3.org/1999/XSL/Format" class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="why-Spring DM.html">Prev</a>&nbsp;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right">&nbsp;<a accesskey="n" href="get-started.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter&nbsp;2.&nbsp;Why Gemini Blueprint?&nbsp;</td><td width="20%" align="center"><span style="color:white;font-size:90%;"><a href="http://www.SpringSource.com/" title="SpringSource - Spring from the Source">Sponsored by SpringSource
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