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Architecture Council/Open Issues

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Open Issues are Overflow items that have been proposed for a meeting, but that we ran out of time discussing. These items are pushed forward from meeting to meeting until we find time picking one up.

How to start Releng?

Mentoring New Projects

  • We need more Architecture Council members to step up and become project mentors
    • New projects require two mentors (a Good Thing™)
  • How do new projects find/attract a mentor?
    • Mailing list, bugzilla?
    • "Work the crowd"
  • Experiences?
    • What could be improved?
    • Webpage improvements: more pre-canned content for new projects (like Sourceforge)?

Top Ten Recommendations

Relationship to E4

  • E4/Pervasive Themes - Performance, Memory Footprint, Bloat (Boris' Blog), Concurrency
  • Invite E4 to present to the EAC?
  • E4 now has bi-weekly calls -- won't discuss E4 on the EAC unless asked / invited


  • Examples: bug 245573 comment 12 (Dali JPA Tools Deadlock, John CC'd to EAC); bug 246840 discussion about ISchedulingRule (saving project preferences)
  • What is causing issues?
    • work performed during class loading (Activator.start()) - unknown context, can run at unpredictable times
    • work performed in callbacks - unknown context, avoid synchronous callbacks
    • General recommendations: (e.g. avoid synchronous callbacks, avoid in Activator.start(), static initializers or Singleton getters) - a general recommendation could be to avoid performing work at unpredictable times, but that would recommend against lazy initialization in general
    • Does anybody have a well-working, consistent model on top of the current infrastructure?
    • Totally new concurrency mechanism as part of E4 ?
      • David Orme mentions DataBinding Realms and the Threads Considered Harmful blog which references Erlang message-based concurrence
      • Would it help to become more asynchronous under the hood, even if old APIs need to remain for compatibility?
      • Are there any other good known models for concurrency?
    • Better Javadoc ?
      • Example: ISchedulingRule.isConflicting() vs. ISchedulingRule.contains(), and how does it relate to RuleFactory and MultiRule?
    • Articles ? - John referenced the resource-deltas article

Eclipse Pain Points

  • Eclipse Pain Points

Other Ideas for Discussion

  • Mentoring Galileo: What could be improved?
    • Running each project's unittests with full Galileo installed; especially interesting for Performance tests
    • Don't duplicate work done by the Planning Council
    • Integrated bug reporting: Mylyn is providing a bug/error/enhancement reporting facility that will provide a flexible and product-configurable mapping between features, bundles and bug trackers bug 212209 (Example: http://wiki.eclipse.org/images/8/86/Mylyn-Bug-Reporting-Example.jpg ). Do we want this for Galileo?

Items proposed in 2007

  • Coordinated build (Ganymede) infrastructure - how to achieve continuous integration, unit tests covering the integration of all projects, and consistency across all projects
  • UI Consistency - when I'm not mistaken, the UI Guidelines are being reworked; how can we encourage projects to pick them up.
  • Remote Development - Theoretically, EFS should be the foundation on which workspaces can be put on remote machines, and I do see a lot of interest in this -- but practically, there are some roadblocks. It's a pervasive topic since most projects are not really EFS-aware yet. How to improve the situation?
  • Scripting, Macro Recording, DOMs - Another pervasive theme, if macro recording & playback is to be supported across an entire Eclipse based product, there need to be guidelines and APIs for projects to follow. It may be a multi-year multi-project effort but it may be worth getting it started.
  • Security - With the number of plugins aver growing, is there a threat of trojans nesting themselves inside Eclipse? Getting a trojan or virus-like plugin into Eclipse can be extremely malicious - from spying to impersonation up to data destruction. Is it a real threat, and is there something that could / should be done?
  • Project Model and Nested Projects - when developers lay out the directory structure on non-eclipse projects, they often use a tree where some directories represent projects. Those projects are "nested". This is also often related to the way the files are stored in a configuration management system. Unfortunately eclipse does not really support this real-world setup bug 35973, and this Blog by Alex Blewitt
  • Integrated bug reporting: Mylyn is providing a bug/error/enhancement reporting facility that will provide a flexible and product-configurable mapping between features, bundles and bug trackers bug 212209. Once done it would be good to discuss how best for EPP and other products to consume this (Example: http://wiki.eclipse.org/images/8/86/Mylyn-Bug-Reporting-Example.jpg )
  • Package visibility policies: New WTP Policy and bug 202711