The Future of Java - Speaker Deck

The Future of Java

by Holly Cummins

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The Future of Java May 11, 2022 Holly Cummins Red Hat

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@holly_cummins #RedHat

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@holly_cummins #RedHat

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@holly_cummins #RedHat “sure, I can steal Mark Little’s talk” me

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@holly_cummins #RedHat

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@holly_cummins #RedHat

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@holly_cummins #RedHat

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@holly_cummins #RedHat to understand Java’s future we must understand its past 1820s

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@holly_cummins #RedHat 1999

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@holly_cummins #RedHat book about 1cm thick 1999

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@holly_cummins #RedHat on-prem dedicated hardware long-lived processes

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@holly_cummins #RedHat

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@holly_cummins #RedHat 2013

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@holly_cummins #RedHat 2013

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@holly_cummins #RedHat microservices

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@holly_cummins #RedHat servers are immutable

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@holly_cummins #RedHat servers are disposable servers are immutable

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@holly_cummins #RedHat

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@holly_cummins #RedHat

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@holly_cummins #RedHat

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@holly_cummins #RedHat

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@holly_cummins #RedHat

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@holly_cummins #RedHat turning it off and on again needs to

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@holly_cummins #RedHat turning it off and on again needs to

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@holly_cummins #RedHat turning it off and on again needs to • be fast

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@holly_cummins #RedHat turning it off and on again needs to • be fast • actually work (idempotency)

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@holly_cummins #RedHat

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@holly_cummins #RedHat

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@holly_cummins #RedHat

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@holly_cummins #RedHat Mark Little

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@holly_cummins #RedHat Java servers are not very much like light switches

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@holly_cummins #RedHat Java servers are not very much like light switches

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@holly_cummins #RedHat Java servers are not very much like light switches (historically)

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@holly_cummins #RedHat my Java journey

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@holly_cummins #RedHat 1999

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@holly_cummins #RedHat how I learned Java 1999

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@holly_cummins #RedHat 2017

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@holly_cummins #RedHat 2015

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@holly_cummins #RedHat 2017 I (kind of, mostly) JavaScript me

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@holly_cummins #RedHat 2022

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@holly_cummins #RedHat I JavaScript fast start time functional expressive great developer experience

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@holly_cummins #RedHat I JavaScript fast start time functional expressive great developer experience (ish)

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@holly_cummins #RedHat it’s good to be back

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@holly_cummins #RedHat rapid release cadence we get presents every six months Java 18

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@holly_cummins #RedHat rapid release cadence we get presents every six months Java 18 rapid release cadence we get features every six months

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@holly_cummins #RedHat java has shifted to the cloud

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@holly_cummins #RedHat 13 MB footprint 0.014 s startup time modern Java REST app https://blog.openj9.org/2020/01/16/quarkus-and-eclipse-openj9-exceptional-performance-across-platforms/ https://www.redhat.com/en/resources/quarkus-infographic-supersonic-subatomic-java

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@holly_cummins #RedHat ~= developers cloud environment

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@holly_cummins #RedHat kubernetes-native Java

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@holly_cummins #RedHat kubernetes-native Java performance p e r f o p e r f or m a

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@holly_cummins #RedHat kubernetes-native Java performance p e r f o p e r f or m a operations o p e r at i o ns ( d

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@holly_cummins #RedHat kubernetes-native Java performance (high density) operations (declarative) developers (frictionless experience)

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@holly_cummins #RedHat JVM + JDK

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@holly_cummins #RedHat JVM + JDK

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@holly_cummins #RedHat JVM + JDK binary distributions

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@holly_cummins #RedHat JVM + JDK binary distributions

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@holly_cummins #RedHat JVM + JDK binary distributions frameworks

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@holly_cummins #RedHat cross-release compatibility JVM + JDK binary distributions frameworks

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@holly_cummins #RedHat cross-release compatibility stability JVM + JDK binary distributions frameworks

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@holly_cummins #RedHat cross-release compatibility stability performant JVM + JDK binary distributions frameworks

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@holly_cummins #RedHat cross-release compatibility stability performant cross-vendor co-operation JVM + JDK binary distributions frameworks

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@holly_cummins #RedHat cross-release compatibility stability performant cross-vendor co-operation rapid iteration JVM + JDK binary distributions frameworks

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@holly_cummins #RedHat cross-release compatibility stability performant cross-vendor co-operation rapid iteration cloud native JVM + JDK binary distributions frameworks

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@holly_cummins #RedHat cross-release compatibility stability performant cross-vendor co-operation rapid iteration cloud native kubernetes-native JVM + JDK binary distributions frameworks

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@holly_cummins #RedHat cross-release compatibility stability performant cross-vendor co-operation rapid iteration cloud native kubernetes-native JVM + JDK binary distributions frameworks easy

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@holly_cummins #RedHat cross-release compatibility stability performant cross-vendor co-operation rapid iteration cloud native kubernetes-native JVM + JDK binary distributions frameworks easy easy

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@holly_cummins #RedHat thank you! (and enjoy the real Simon Maple)