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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Open Source
A Journey of Contribution and Collaboration
Ivar Grimstad

Jakarta EE Developer Advocate
Eclipse Foundation
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@ivar_grimstad
https://github.com/ivargrimstad
https://www.linkedin.com/in/ivargrimstad
@[email protected]
ivargrimstad_of
fi
cial
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#JakartaEE COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0) @ivar_grimstad
Open Source
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https://www.scala-lang.org/docu/
fi
les/ScalaTutorial-no_NO.pdf
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Open Source Principles
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Transparency
Collaboration
Release Early
and Often
Inclusive
Meritocracy
Community
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
User Freedom
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
To run the
program, for
any purpose
To study
how the
program
works, and
change it to
make it do
what you
wish
To
redistribute
copies
To distribute
copies of
your
modi
fi
ed
versions to
others
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Open Source Licenses
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Open Source Initiative
https://opensource.org/licenses
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Open Source
vs
Source Available
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#JakartaEE COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0) @ivar_grimstad
Open Source Projects
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Solo
Description
One or two programmers control code,
decisions, support
Contributing Either extremely easy or extremely hard
Support Usually very responsive or abandoned
Examples
Byte Buddy
SnoopEE
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Solo
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Single Vendor
Description
Open sourced by a company,
employees as contributors
Contributing Usually dif
fi
cult
Support
Reliable support obtained through
support contracts with sponsoring
company
Examples
Quarkus
Spring Framework
Gradle
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Single Vendor
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Community
Description
Signi
fi
cant number of contributors,
usually democratic
Contributing Generally welcoming, no formal process
Support
Participation in the social process
required
Examples
PostgreSQL
OpenJDK
mockito
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Community
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Foundation
Description
Formal organisation open source
projects. Often projects critical to several
large companies.
Contributing Formal process, meritocracy
Support
Sponsoring companies providing paid
support
Unpaid support similar as communities
Examples
Eclipse Jetty
Apache Maven
Kubernetes
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Solo Single Vendor Community Foundation
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#JakartaEE COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0) @ivar_grimstad
Evolving Expectations
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Security
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https://slsa.dev/
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Is this license compatible with your project license?
Will you assign a CVE?
How do you handle vulnerabilities?
Does the open source project follow an OpenChain conformant process?
Is the project REUSE compliant?
Where is your Software Bill of Materials?
Does the license allow me to do X?
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Regulations
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
European Cyber Resiliency Act
(CRA)
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Product Liability Directive
(PLD)
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#JakartaEE COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0) @ivar_grimstad
Challenges
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#JakartaEE COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0) @ivar_grimstad
Open Source Foundations
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
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#JakartaEE COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0) @ivar_grimstad
Contributing to Open Source
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
First Rule of Contributing
to Open Source
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Contribute!
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Where to Contribute?
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Improve the Software
YOU Rely On
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Does Not Need to be
CODE
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Follow Your Passion
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Solo Single Vendor Community Foundation
Apache NetBeans
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Why Contribute?
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Improve YOUR Skills
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Build Your Reputation
and Career
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
How to Contribute?
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
Show Your SUPPORT
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#JakartaEE COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0) @ivar_grimstad
Summary
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COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0)
First Rule of Contributing
to Open Source
Remember
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Eclipse Foundation

https://eclipse.org
Jakarta EE
https://jakarta.ee
Get Involved
https://jakarta.ee/community/get-involved/
Blog
https://www.agilejava.eu
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#JakartaEE COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0) @ivar_grimstad
Announcement
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#JakartaEE COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0) @ivar_grimstad
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#JakartaEE COPYRIGHT (C) 2023, ECLIPSE FOUNDATION, INC. | THIS WORK IS LICENSED UNDER A CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE (CC BY 4.0) @ivar_grimstad
Thank You!