Amazon Corretto JDK

#1

Post by gjvc » Sat, Oct 16, 2021, 10:12 PM UTC

Re: Amazon Corretto JDK

#2

Post by atomicnumber3 » Sat, Oct 16, 2021, 10:58 PM UTC

I've peripherally known Corretto is the Amazon distribution of Java (specifically, OpenJDK), but I never really looked up what the difference between, say, the releases from AdoptOpenJDK and Corretto are.

I looked it up, it looks like it's generally:

1. LTS support - adoptopenjdk doesn't do LTS

2. Patches that come from Amazon that are upstreamed to OpenJDK but appear in Corretto first since, you know, that's where Amazon develops them.

Did I miss anything?

Re: Amazon Corretto JDK

#3

Post by hn_20591249 » Sat, Oct 16, 2021, 10:59 PM UTC

Could someone provide a TL;DR on the major patches/benefits that Corretto has over Adopt or other community driven JDK implementations? It is unclear from the documentation but I am assume they have some secret sauce for faster boot for their Firecracker VM instances.

Re: Amazon Corretto JDK

#4

Post by hn_20591249 » Sat, Oct 16, 2021, 11:01 PM UTC

atomicnumber3 wrote: post #2

I've peripherally known Corretto is the Amazon distribution of Java (specifically, OpenJDK), but I never really looked up what the difference between, say, the releases from AdoptOpenJDK and Corretto are. I looked it up, it looks like it's generally: 1. LTS support - adoptopenjdk doesn't do LTS 2. Patches that come from Amazon that are upstreamed to OpenJDK but appear in Corretto first since, you know, that's where A…

I asked an adjacent question and am also curious, great that they have provided another option for the OpenJDK community but I can’t see anything compelling that would make me consider this over Adopt.

Re: Amazon Corretto JDK

#5

Post by heelix » Sat, Oct 16, 2021, 11:04 PM UTC

atomicnumber3 wrote: post #2

I've peripherally known Corretto is the Amazon distribution of Java (specifically, OpenJDK), but I never really looked up what the difference between, say, the releases from AdoptOpenJDK and Corretto are. I looked it up, it looks like it's generally: 1. LTS support - adoptopenjdk doesn't do LTS 2. Patches that come from Amazon that are upstreamed to OpenJDK but appear in Corretto first since, you know, that's where A…

Adopt OpenJDK did have the LTS releases. They rebranded last release - https://adoptium.net. The quarterly updates to Java 8, 11, and now 17 are all there, and up till then, been pulling 8/11 from Adopt OpenJDK's site.

All in all, not much different. The last release was a bit of a kerfuffle, as they migrated web sites.

Re: Amazon Corretto JDK

#6

Post by Ironlink » Sat, Oct 16, 2021, 11:12 PM UTC

hn_20591249 wrote: post #3

Could someone provide a TL;DR on the major patches/benefits that Corretto has over Adopt or other community driven JDK implementations? It is unclear from the documentation but I am assume they have some secret sauce for faster boot for their Firecracker VM instances.

According to their user guide, the only patch they have is the branding change: https://docs.aws.amazon.com/corretto/latest/corretto-17-ug/p...

I'll keep using the OpenJDK Docker images.

Re: Amazon Corretto JDK

#7

Post by iou » Sat, Oct 16, 2021, 11:22 PM UTC

Ironlink wrote: post #6

hn_20591249 wrote: post #3

Could someone provide a TL;DR on the major patches/benefits that Corretto has over Adopt or other community driven JDK implementations? It is unclear from the documentation but I am assume they have some secret sauce for faster boot for their Firecracker VM instances.

According to their user guide, the only patch they have is the branding change: https://docs.aws.amazon.com/corretto/latest/corretto-17-ug/p... I'll keep using the OpenJDK Docker images.

They do list the additional patches they do here (for example) https://docs.aws.amazon.com/corretto/latest/corretto-8-ug/pa...

Re: Amazon Corretto JDK

#8

Post by iou » Sat, Oct 16, 2021, 11:23 PM UTC

iou wrote: post #7

Ironlink wrote: post #6

Earlier quoted context omitted.

According to their user guide, the only patch they have is the branding change: https://docs.aws.amazon.com/corretto/latest/corretto-17-ug/p... I'll keep using the OpenJDK Docker images.

They do list the additional patches they do here (for example) https://docs.aws.amazon.com/corretto/latest/corretto-8-ug/pa...

I guess v11 is a better link to share there https://docs.aws.amazon.com/corretto/latest/corretto-11-ug/p...

Re: Amazon Corretto JDK

#9

Post by [deleted] » Sat, Oct 16, 2021, 11:23 PM UTC

Ironlink wrote: post #6

hn_20591249 wrote: post #3

Could someone provide a TL;DR on the major patches/benefits that Corretto has over Adopt or other community driven JDK implementations? It is unclear from the documentation but I am assume they have some secret sauce for faster boot for their Firecracker VM instances.

According to their user guide, the only patch they have is the branding change: https://docs.aws.amazon.com/corretto/latest/corretto-17-ug/p... I'll keep using the OpenJDK Docker images.

[deleted]

Re: Amazon Corretto JDK

#10

Post by geofft » Sat, Oct 16, 2021, 11:29 PM UTC

iou wrote: post #8

iou wrote: post #7

Earlier quoted context omitted.

They do list the additional patches they do here (for example) https://docs.aws.amazon.com/corretto/latest/corretto-8-ug/pa...

I guess v11 is a better link to share there https://docs.aws.amazon.com/corretto/latest/corretto-11-ug/p...

Wow, that's awesome - 8 had a handful of custom patches and some backports, 11 had only backports, and 17 has nothing. This is kind of the best possible story for a distribution fork!