<div class="wiki-content maincontent"><h2>Can I use ActiveMQ 5.0 or later on Java 1.4?</h2>

<p>Apache ActiveMQ 5.x or later is developed to run on Java 5 or later  to take advantage of the new language features together with the major fact that on Java 5 the new concurrency code is faster &amp; less buggy and requires less dependencies.</p>

<p>We may get around to creating a sepate distro of retrotranslated jars for 1.4 <link><page ri:content-title="Contributing"></page><link-body>particularly if someone helps</link-body></link>.</p>

<p>Until then you can just <a shape="rect" href="http://retrotranslator.sourceforge.net/#jit">install the retrotranslator JIT in your JVM</a> which will auto-swizzle all Java 5 bytecode to be complaint Java 1.4 bytecode using backport-util-concurrent instead of Java 5 concurrency code.</p>

<h2>See Also</h2>

<ul><li><link><page ri:content-title="What platforms does ActiveMQ support"></page></link></li></ul>
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