s <code><abbr>tz</abbr></code> source and exposes <abbr
title="Application Program Interface">API</abbr>s for use. It is
freely available under the <abbr>MIT</abbr> license.</li>
<li>Java-based compilers and libraries include:
<ul>
<li>The <a
href="https://www.oracle.com/java/technologies/javase/tzupdater-readme.html">TZUpdater
tool</a> compiles <code><abbr>tz</abbr></code> source into the format used by
<a href="https://openjdk.org">OpenJDK</a> and
<a href="https://jdk.java.net">Oracle JDK</a>.
Although it