Path to 3.0.0-rc3 #82
Replies: 4 comments 14 replies
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@JooHyukKim @pjfanning @k163377 @yawkat 3.0.0-rc2 released, it is time to consider the next milestone, rc3. Probably want to include:
what else? |
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Did some research with GPT and one of problems I see is that LambdaMetaFactory uses runtime generation of Lamdba class runtime. Sorry for photobomb(as I am on the move)
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@JooHyukKim @cowtowncoder , the specific reason not to do this right now is that the generated lambda implementations are created with the "STRONG" ClassOption, which means that they are not eligible for class unloading until the entire class loader is unloaded. So, it can inadvertently lead to Jackson being identified as a memory leak - see FasterXML/jackson-modules-base#147 This is not an inherent problem, but rather an implementation detail of the current JVM. With appropriate interest it could be possible to avoid the issue (but I personally have no plans to work on this right now) |
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Sorry, meant to tag @k163377 for the previous comment ^ |
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Thank you, I will check the effect of using |
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Thank you for the update @stevenschlansker. Always good to know of various constraints, trade-offs. |
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Could we consider FasterXML/jackson-databind#3596 now that we have merged the sealed trait support? |
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Would be good one to have! |
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I think #5025 implemented this; was included in 3.0.0-rc2 EDIT: 5025 is more of a pre-req but not the full thing. So can be considered. |
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Just created JSTEP-12. Short summary:
The benefit of now having essentially static head branch names is less hassle upon releasing new minor versions (can leave "default" branch as either 2.x or 3.x) and avoid having to modify GH Actions on releases (since heads for which Cascading Rebuild jobs work have fixed branch names). I plan on starting "master" -> "3.x" rename soon. But will try to coordinate before proceeding to actively developed components like |
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Quick note: so far renamed "master" as "3.x" in a couple of repos to test things work:
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3.0.0-rc3 was released on 13-Apr-2025, closing. |
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Goal of this Discussion
This Discussion is continuation/part of Path to 3.0.0, digging into details of what should go in the third release candidate --
3.0.0-rc3-- of Jackson 3.You may want to check out Path to 3.0.0-rc2 for background.
Note that significant part of actual changes will be based on feedback/bug-reports for 3.0.0-rc2: this document focuses more on more strategic/tactical things.
Goals for 3.0.0-rc3
Complete in-progress JSTEPs
Most JSTEPs are either complete or mostly complete. Of latter, let's try to close on:
jackson-dataformat-xmlcompleteStart implementing JSTEP-5
One JSTEP -- JSTEP-5 -- Unify Date/Time handling -- is in planning/discussion stage.
It is a long-term challenge and we have one chance to significantly improve things.
Note: currently it seems that we will include "Java 8 date/time" module in
jackson-databind: if so, it will be done by time3.0.0-rc3is to be released. This may affect plans for [JSTEP-5].Issues to fix, PRs to merge
3.0.0-rc2still has issues wrt Gradle metadata:jackson-datatype-jsr310intojackson-databindOther
masterbranches as3.x, modified GH workflows appropriately2.xbranches immediately after 2.19.0 released (soon!)Beta Was this translation helpful? Give feedback.
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