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The future of GWT 2.x - By Colin Alworth

GWTcon
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The future of GWT 2.x By Colin Alworth #GWTcon2017 Firenze, September 28-29th 2017

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The Future of GWT 2.x
Presenter:
Colin Alworth
Co-Founder
colin@vertispan.com
The Boring Version of This
Morning’s Discussion
The Future of GWT 2.x
Presenter:
Colin Alworth
Co-Founder
colin@vertispan.com
3
JSNI/JSOs - Rewrite everything in JsInterop
Generators - Rewrite all in APT
Modules - change over to smaller projects, or write build rules
MigrationAnyone have a lot of work to do?
4
Ecosystem - assist in applying changes to gwt-user, and all other
dependencies
Build tools - still being created
Stability - not all teams adopt new tools the moment they arrive
MigrationAnyone have a lot of work to do?
5
How has GWT 2 continued to grow?
How will GWT 2 change as J2CL/GWT3 matures?
What will happen to GWT 2 after GWT3 is here, and is used?
GWT 2.x
www.companyname.com
© 2016 Jetfabrik Multipurpose Theme. All Rights Reserved.
6
Support Java7 language, JRE
Early Super Dev Mode
Code splitting fragment merging more reliable
23 Jan 2014
Super Dev Mode is now default
Beginning of JsInterop
JDK performance improvements
20 November 2014
Recent GWT VersionsYour great subtitle in this line
2.6
2.7

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The future of GWT 2.x - By Colin Alworth

  • 1. The Future of GWT 2.x Presenter: Colin Alworth Co-Founder colin@vertispan.com
  • 2. The Boring Version of This Morning’s Discussion The Future of GWT 2.x Presenter: Colin Alworth Co-Founder colin@vertispan.com
  • 3. 3 JSNI/JSOs - Rewrite everything in JsInterop Generators - Rewrite all in APT Modules - change over to smaller projects, or write build rules MigrationAnyone have a lot of work to do?
  • 4. 4 Ecosystem - assist in applying changes to gwt-user, and all other dependencies Build tools - still being created Stability - not all teams adopt new tools the moment they arrive MigrationAnyone have a lot of work to do?
  • 5. 5 How has GWT 2 continued to grow? How will GWT 2 change as J2CL/GWT3 matures? What will happen to GWT 2 after GWT3 is here, and is used? GWT 2.x
  • 6. www.companyname.com © 2016 Jetfabrik Multipurpose Theme. All Rights Reserved. 6 Support Java7 language, JRE Early Super Dev Mode Code splitting fragment merging more reliable 23 Jan 2014 Super Dev Mode is now default Beginning of JsInterop JDK performance improvements 20 November 2014 Recent GWT VersionsYour great subtitle in this line 2.6 2.7
  • 7. www.companyname.com © 2016 Jetfabrik Multipurpose Theme. All Rights Reserved. 7 Support Java8 language, JRE Final JsInterop spec GSS support, including CSS3 20 October 2016 JsInterop fixes and improvements for Elemental2 JsInterop export flags, and new native type names Bugfixes 24 April 2017 2.8 2.8.1
  • 8. 8 Support running in Java 9 environment Bugfixes, cleanup Soon Java 9 language support, JRE emulation Later 2.8.2 2.9
  • 9. 9 Most GWT projects are very large, may take time to upgrade Not all of GWT 2 can be easily ported to JsInterop Automatic support for Generators/Linkers/JSOs may not be possible GWT 2 in the land of 3.xGWT 2 isn’t going away
  • 10. 10 The community is productive in GWT2 Our roadmap is designed to support backward compatibility Brutal honesty: Not every project will make sense to upgrade to GWT 3 GWT 2 in the land of 3.xGWT 2 isn’t going away
  • 11. 11 Some teams still support ancient browsers Maintenance cost is minimal Failure to upgrade is self-limiting, no Java8+, no JsInterop Legacy Dev Mode Yeah, this won’t die either.
  • 12. 12 Teams staying on older GWT can still take advantage of these J2CL has other tricks that let us do things that GWT 2 can’t do if removed Failure to upgrade is self-limiting, no Java8+, no JsInterop Generators, Rebind Rules, Linkers
  • 13. 13 Improvements can still be made Modularization may still be a good idea, but generally deleting saves little Less flashy than the latest unsupported browser spec, but long lived for teams that need it Widgets and more from gwt-user.jar
  • 14. 14 GWT 2.x is in good shape, generates small, efficient JS A wide range of browsers and tools are supported Current tooling and ecosystem keeps teams productive Bottom line
  • 15. 15 Updates to Java Ecosystem changes to ease migrations Modularization, internal updates Continuing Improvements
  • 16. 16 Bugfix release Support running compiler, dev mode on Java 9 https://github.com/gwtproject/gwt/milestone/18 GWT 2.8.2
  • 17. 17 Java 9 language features, JRE emulation Consider borrowing generated code from J2CL Deprecations? Remove dead code? Carefully! GWT 2.9
  • 18. 18 Replace SpeedTracer logging system? Improve class initializer compile size, performance? More ideas? GWT 2.9
  • 19. 19 Aim for releasing parallel or after GWT 3? Consider compiler modularization Encourage moving toward ecosystem-driven APT and JsInterop GWT 2.10