The document discusses modernizing Java applications for cloud native environments. It suggests that modernization can be both evolutionary and revolutionary. Evolution involves incrementally updating existing Java systems, while revolution involves rewriting systems using new technologies. The document advocates for an evolutionary approach of gradually modernizing applications using Java and related technologies like MicroProfile and Vert.x that are suited for cloud native architectures and container deployment. This allows leveraging existing Java skills and investments while improving agility, scalability and portability.

1. Tim Ellison
Java CTO
IBM
Cloud Native Runtimes
Revolution or Evolution?
May 12th, 2020

2. What is “Cloud Native for Java” ?
cost effective scalable adaptable
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3. Why modernize your Java applications ?
architecture
limitations,
and team pace
increasing
maintenance
costs
changing
platform
environment
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4. Evolution or Revolution ?
rewrite
systems using
new
technology
incrementally
tweak existing
systems
unity in
organizational
approach
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5. Modernizing existing systems
“legacy” is not
a dirty word!
everybody has
some legacy
code
dependencies
business
priorities are
the goal
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6. Java as a modernization technology
key enterprise
investment
and skill
new APIs
target cloud
native
architecture
community
diversity and
innovation
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7. Our Java modernization journey
“lift and shift”
to cloud
container
deployment
microservices
and blended
architecture
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8. Lift and shift to Cloud platform
impacts on the
cost structure
ops team still
managing
systems
low impact on
business
agility
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9. Containerized applications
developers
impacted by
constraints,
ops roles,
productivity
ops team
provide broad
platform
infrastructure
devops joint
infrastructure
as code
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10. Building Microservices / Functions
architectural
tool –
not a goal
decrease the
scope of the
releases
improve
delivery agility
and scalability
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11. Technology to take on the journey
Jakarta runs
your business
and enables
transition to
cloud
MicroProfile,
Vert.x etc
provide right-
sized APIs
OpenJ9
container and
cloud aware
runtime
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12. Cloud Native Java: Evolution or
Revolution?
Both!
Revolution for
the business
organization
Evolution for
Java
technology
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13. Thank you!
Enjoy the conference.
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