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New Java Champions: Holly Cummins, Aleksey Shipilev, and David Heffelfinger

Welcome three new Java Champions: Holly Cummins, Aleksey Shipilev, and David Heffelfinger

Holly Cummins has been a Java engineer since 2001. She was one of the core engineers on the IBM J9 JVM working on Garbage Collection (GC) and Just in Time (JIT) compilation. She is currently a technical lead for IBM BlueMix Garage.   

Holly is also a committer and PMC member on the Apache Aries project, which melds the OSGi and Java EE programming models. She created several wearable projects connected to a backend server to demonstrate the low power requirements of modern application servers, and the suitability of Java for embedded application servers.

Holly is the co-author of Enterprise OSGi in Action (Manning). She has published on a range of subjects, from performance myths, garbage collection tuning principles, enterprise OSGi, Java on Raspberry PIs, microservices, automation, and the importance of fun in a development culture. She is a frequent speaker at conferences including Devoxx and JavaOne. Follow her on Twitter @holly_cummins

Aleksey Shipilev is a principal software engineer at Redhat. He is the author of the Java Microbenchmarking Harness (JMH), a project to examine the performance of Java coding constructs.  Prior to JMH, programmers wrote their benchmarking harnesses fraught with errors.  He wrote JCStress, a toolkit for testing concurrency code. He also developed a Java-Object-Layout, JOL, which uses Unsafe, JVMTI, and Serviceability Agent (SA) heavily to decode the actual object layout, footprint, and references. 

Aleksey is now a committer to the new GC project Shenandoah. He is very active on mailing lists like Java Concurrency Interest, JMH, and OpenJDK projects. Follow him on Twitter @shipilev

David Heffelfinger is an independent consultant based in the Washington, DC area. He is a member of the NetBeans Dream Team and is part of the JavaOne content committee. 

David has written 7 books on Java EE, application servers, NetBeans, JasperReports, and Wicket. His titles include Java EE 7 Development with NetBeans 8, Java EE 7 with GlassFish 4 Application Server, and JasperReports 3.5 For Java Developers. 

David has been speaking at JavaOne every year since 2012. He is a frequent speaker at NetBeans Day in San Francisco, showcasing NetBeans features that greatly enhance the development of Java EE applications. Follow him on Twitter @ensode

The Java Champions are an exclusive group of passionate Java technology and community leaders who are community-nominated and selected under a project sponsored by Oracle. Learn more about Java Champions 
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