Warnings are errors

Marcus Lagergren interview: “Anything that is a warning on one platform could be an error on another”| JAX 2016

JAXenter Editorial Team

Marcus Lagergren, a senior software architect at Klarna, spoke to JAXenter editor Gabriela Motroc at JAX 2016 about terror testing, battle scars and more.

Marcus Lagergren has an MSc in computer science from the Royal Institute of Technology in Stockholm, Sweden. He has a background in computer security but has worked with runtimes since 1999. Lagergren was one of the founding members of Appeal Virtual Machines, the company that developed the JRockit JVM, bought by BEA Systems in 2002. He has been team lead and architect for the JRockit code generators and has been involved in pretty much every other aspect of JVMs over the years. Between 2007 and 2010, Lagergren worked for Oracle on fast virtualization technology. As of 2015, he is a member of the Oracle Langtools team, investigating dynamic languages on the JVM, and a general runtime futurist. He is the coauthor of the book „Oracle JRockit: The Definitive Guide“, which, despite the product-centric title, has been praised as the best book ever written on JVM internals in general. As of September 2011, Marcus works as a senior software architect at e-payment company Klarna, designing distributed systems for fun and profit.

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