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  <div class="vevent h-event"> <h1 class="summary p-name">Portland Java User Group (PJUG) - Implementing a Simple JVM in Java and Rust</h1> <div class='date'><time class="dtstart dt-start" title="2019-05-15T19:00:00" datetime="2019-05-15T19:00:00">Wednesday, May 15, 2019 from 7</time>–<time class="dtend dt-end" title="2019-05-15T20:00:00" datetime="2019-05-15T20:00:00">8pm</time></div> <div class="location vcard p-location h-card"> <a class="url" href='http://calagator.org/venues/202396318'><span class='fn org p-name'>Zoom Care</span></a> <div class="adr p-adr h-adr"> <div class="street-address p-street-address">1455 NW Irving St #600</div> <span class="locality p-locality">Portland</span> , <span class="region p-region">OR</span> (<a href='https://maps.google.com/maps?q=1455%20NW%20Irving%20St%20%23600,%20Portland%20OR%20%20'>map</a>) </div> </div> <div class="description p-description"> <p>The Portland Java User Group is holding a meeting on Wednesday May 15th at Zoom Care (1455 NW Irving St #600 · Portland, OR).</p> <p>Our feature speaker for this meeting is Ben Evans, a highly popular Java evangelist. Ben has been a pillar in the Java community for many years. He's the co-founder of jClarity and a previous representative the JCP Executive Committee (for 6 years) . He is the author of five books (‘The Well-Grounded Java Developer’ and the new editions of ‘Java in a Nutshell’, ‘Java: The Legend’ and ‘Optimizing Java’) and writes regularly for industry publications.</p> <p>ABSTRACT: The JVM is a truly remarkable piece of software, but it is still just a computer program, not magic! In this talk, I will explain how we might start to implement a JVM from scratch, using the Java programming language. Fundamental concepts such as the bytecode interpreter, classfile parsing and memory management will be explained, using an open-source implementation as reference. We will build up a working interpreter capable of executing simple methods, and then discuss the limitations of the simple JVM.</p> <p>The second half of the talk will be to show how the Rust programming language provides a good alternative implementation language for our simple JVM. We will showcase some basic Rust language features and show how they can be used to provide a version of our JVM that is much cleaner and easier to understand, even if you've never seen Rust code before!</p> <p>Please RSVP here: <a href="https://www.meetup.com/PDXJUG/events/261007537/">https://www.meetup.com/PDXJUG/events/261007537/</a></p> <p>Hope to see you there!</p> </div> <h3>Links</h3> <ul> <li><a class="url u-url" href="https://www.meetup.com/PDXJUG/events/261007537/">Website</a></li> </ul> </div>