Re: [ljc] When to adopt Java 8
| From: | Alex B. |
| Sent on: | Thursday, August 20, 2015, 9:57 AM |
There isn't an OpenJDK 8, only an OracleJDK 8. There are commercial features in OracleJDK 8 (flight recorder) which aren't present in an OpenJDK build. If you don't have them you can't use them accidentally. Alex Sent from my iPhat 6 > On 20 Aug 2015, at 08:49, Ingo Hoffmann <[address removed]> wrote: > > What does Azul OpenJDK brings that the original OpenJDK doesn't? > >> On 19/08/[masked]:46 , Ben Evans wrote: >> Hi Gemma, >> >> You should download & use the Azul Zulu OpenJDK images: >> https://www.azulsy... >> >> Unfortunately, the Ubuntu project just imports packages directly from >> Debian, and the Debian maintainers have an extremely unhelpful and >> unprofessional attitude towards OpenJDK. >> >> The Debian & Ubuntu images are not to be relied upon, and should not be >> used. If you encounter problems with them, it will be almost impossible >> to diagnose bugs in the images, and you will find it extremely difficult >> to get support and help for your problems. >> >> tldr; >> >> Use Zulu OpenJDK for all new Java projects on Linux - especially if you >> are planning to use Docker. >> >> Thanks, >> >> Ben >> >> >> On Wed, Aug 19, 2015 at 7:38 PM, Gemma <[address removed] >> <mailto:[address removed]>> wrote: >> >> Hi, >> >> May I ask if anyone has installed openjdk 1.8 in an Ubuntu LTS >> machine? And if so,if there is a trusty ppa (or not ppa) repository? >> >> I can find things like the following >> >> https://askubuntu.... >> https://www.webupd... >> https://ubuntuhand... >> >> https://column80.c... >> >> but it seems there is no official repository for it. I found it a >> bit strange after one year release it's quite a usual case for >> production so thought it would be worth asking just in case I'm >> missing something. >> >> >> Best regards, >> Gemma >> >> >> On 21 February 2014 at 08:37, Mani <[address removed] >> <mailto:[address removed]>> wrote: >> >> All you now need a mind-map of the various paths from your >> current situation to where you want to be - after collating all >> the threads of conversations to your query (including your own >> plans)! >> >> I'm guessing it will be an interesting mind-map, share with us >> if you get a chance ;)! >> >> Cheers, >> Mani >> >> -- >> @theNeomatrix369 <https://twitter.co...;* | Blog >> <https://neomatrix3...;**| *LJC Associate & LJC >> Advocate(@adoptopenjdk & @adoptajsr) >> *Meet-a-Project:*https://github.com... >> *Bitbucket:*https://bitbucket.... >> ***Github:*https://github.com... >> <https://github.com...; >> *LinkedIn:*https://uk.linkedi... >> *Come to Devoxx UK 2014: *https://www.devoxx... >> <https://www.devoxx...; >> ** >> >> >> ------------------------------------------------------------------------ >> From: [address removed] <mailto:[address removed]> >> To: [address removed] <mailto:[address removed]> >> Subject: Re: [ljc] When to adopt Java 8 >> Date: Thu, 20 Feb[masked]:02:55 -0500 >> >> Hi all, >> >> I'm overwhelmed with joy for all your answers. It really helps >> me to know what's the right aim is and how to go about it if I >> ever have the opportunity to contribute positively on what we >> are doing. >> >> >> Many thanks for taking the time to answer, >> Gemma >> >> >> On 20 February[masked]:01, Mani <[address removed] >> <mailto:[address removed]>> wrote: >> >> Gemma, >> >> As one of Martijn's suggestions to go through the Adopt >> OpenJDK route (see a similar test project - >> https://adopt-open...). >> >> You could clone your code base that builds and runs tests >> using the JDK8 EA or OpenJDK (via Jenkis) and slowly migrate >> to the newer version, whilst having your production version >> still build and run on the existing JDK 1.7. >> >> I appreciate you have to nurture the two code bases at the >> same time but you will get an idea after sometime if its >> time for you to migrate or not - this is subject to business >> needs. >> >> As many are suggesting don't migrate immediately but >> gradually - just my 2p. >> >> Cheers, >> Mani >> >> -- >> @theNeomatrix369 <https://twitter.co...;* | >> Blog <https://neomatrix3...;**| *LJC Associate & >> LJC Advocate(@adoptopenjdk & @adoptajsr) >> *Meet-a-Project:*https://github.com... >> *Bitbucket:*https://bitbucket.... >> ***Github:*https://github.com... >> <https://github.com...; >> *LinkedIn:*https://uk.linkedi... >> *Come to Devoxx UK 2014: *https://www.devoxx... >> <https://www.devoxx...; >> ** >> >> >> ------------------------------------------------------------------------ >> Subject: Re: [ljc] When to adopt Java 8 >> From: [address removed] <mailto:[address removed]> >> To: [address removed] <mailto:[address removed]> >> Date: Wed, 19 Feb[masked]:46:25 -0500 >> >> Hi Gemma, >> >> On 19 February[masked]:59, Gemma <[address removed] >> <mailto:[address removed]>> wrote: >> >> Hi, >> >> I'm working on a product where we were evaluating what >> version of Java we should adopt for one of our projects. >> The prototype has worked so far with Java 7 and a >> productionised version needs to be up in few months. >> Among different libraries we use Jaxb, lucene, spring, >> and maybe planning to use the set of libraries that >> comes with Dropwizard or Apache Camel to engineer some >> web services. Since we also work in Python for different >> projects we may need to consider the compatibility with >> JPython too. >> >> After a short discussion the opinion from the majority >> of the group was that the risk to find incompatibilities >> with market libraries was too high versus the benefits >> of the new release (which was highlighted is not there >> yet, despite few weeks left). The conclusion then seems >> to adopt Java 8 later rather than now. >> >> >> I would certainly wait a few weeks until after GA (March >> 18th?) to make sure there are no show-stoppers, but apart >> from that I'd say test a RC early and then go for it! >> >> I've experienced both the problems that upgrading and >> not upgrading a new Java release. I would like to >> understand better when is the right time depending on >> the context. In order to do that I've got some questions >> in my head: >> -- How do we solve forward compatibility? How much >> time that can take up to? >> -- What are the main benefits that this particular >> release brings (apart the so obvious Lambda 8)? I would >> like to hear opinions from a business perspective too. >> >> >> * Date and Time work can now be done accurately and safely >> including all of the fun timezone variations etc. >> * The G1 Garbage Collector is certainly worth taking for a >> spin with regards to having less pauses in your application >> * There are a host of small performance and under the hood >> improvements in Java 8. *generally* speaking, many apps will >> get a speed boost out of the box (usual caveats apply) >> * Lambdas will definitely increase developer productivity >> (once the initial learning curve is sorted) >> * You'll be able to use compact profiles for a smaller >> server side footprint. >> >> -- Is there any option where you can write code in >> Java 8 and generate bytecode in Java 7? (e.g. Python 3 >> running in a python 2 interpreter) >> >> >> You mean writing Java 8 Lambdas and running them on a Java 7 >> runtime? That wont work no. >> >> -- How time and budget restrictions affects risks. Is >> there any way of mitigating the risk of an early adoption? >> >> >> Absolutely! You can: >> >> 1.) Try the release candidate now on a test box. >> (https://jdk8.java....) >> 2.) Join the Adopt OpenJDK programme that we run >> (adoptopenjdk.java.net <https://adoptopenj...;) - a >> community of early adopters >> >> I'm trying to answer the questions myself by reading and >> playing around with Java 8 but I thought asking this >> community for their knowledge and experiences would be >> very helpful too. >> >> >> Hope that helps! >> >> Cheers, >> Martijn >> >> >> >> Many thanks in advance, >> Gemma >> >> >> >> >> -- >> Please Note: If you hit "*REPLY*", your message will be >> sent to *everyone* on this mailing list >> ([address removed] <mailto:[address removed]>) >> This message was sent by Gemma ([address removed] >> <mailto:[address removed]>) from LJC - London Java >> Community <https://www.meetup...;. >> To learn more about Gemma, visit his/her member profile >> <https://www.meetup...; >> To report this message or block the sender, please click >> here >> <https://www.meetup...; >> Set my mailing list to email me As they are sent >> <https://www.meetup...; >> | In one daily email >> <https://www.meetup...; >> | Don't send me mailing list messages >> <https://www.meetup...; >> >> >> Meetup, POB 4668 #37895 NY NY USA 10163 >> <#14f47412adae369b_[masked]c4ea2bc7_1444e87b3f3a6fb0_1444a3ac7d00875f_> >> | [address removed] <mailto:[address removed]> >> >> >> >> >> >> >> -- >> Please Note: If you hit "*REPLY*", your message will be sent >> to *everyone* on this mailing list ([address removed] >> <mailto:[address removed]>) >> This message was sent by Martijn Verburg >> ([address removed] <mailto:[address removed]>) >> from LJC - London Java Community >> <https://www.meetup...;. >> To learn more about Martijn Verburg, visit his/her member >> profile >> <https://www.meetup...; >> >> To report this message or block the sender, please click >> here >> <https://www.meetup...; >> Set my mailing list to email me As they are sent >> <https://www.meetup...; >> | In one daily email >> <https://www.meetup...; >> | Don't send me mailing list messages >> <https://www.meetup...; >> >> Meetup, POB 4668 #37895 NY NY USA 10163 >> <#14f47412adae369b_[masked]c4ea2bc7_1444e87b3f3a6fb0_> | >> [address removed] <mailto:[address removed]> >> >> >> >> >> -- >> Please Note: If you hit "*REPLY*", your message will be sent >> to *everyone* on this mailing list ([address removed] >> <mailto:[address removed]>) >> This message was sent by Mani ([address removed] >> <mailto:[address removed]>) from LJC - London Java >> Community <https://www.meetup...;. >> To learn more about Mani , visit his/her member profile >> <https://www.meetup...; >> >> To report this message or block the sender, please click >> here >> <https://www.meetup...; >> Set my mailing list to email me As they are sent >> <https://www.meetup...; >> | In one daily email >> <https://www.meetup...; >> | Don't send me mailing list messages >> <https://www.meetup...; >> >> Meetup, POB 4668 #37895 NY NY USA 10163 >> <#14f47412adae369b_[masked]c4ea2bc7_1444e87b3f3a6fb0_> | >> [address removed] <mailto:[address removed]> >> >> >> >> >> >> >> -- >> Please Note: If you hit "*REPLY*", your message will be sent to >> *everyone* on this mailing list ([address removed] >> <mailto:[address removed]>) >> This message was sent by Gemma ([address removed] >> <mailto:[address removed]>) from LJC - London Java Community >> <https://www.meetup...;. >> To learn more about Gemma, visit his/her member profile >> <https://www.meetup...; >> To report this message or block the sender, please click here >> <https://www.meetup...; >> Set my mailing list to email me As they are sent >> <https://www.meetup...; | >> In one daily email >> <https://www.meetup...; | >> Don't send me mailing list messages >> <https://www.meetup...; >> >> Meetup, POB 4668 #37895 NY NY USA 10163 >> <#14f47412adae369b_[masked]c4ea2bc7_> | [address removed] >> <mailto:[address removed]> >> >> >> >> >> -- >> Please Note: If you hit "*REPLY*", your message will be sent to >> *everyone* on this mailing list ([address removed] >> <mailto:[address removed]>) >> This message was sent by Mani ([address removed] >> <mailto:[address removed]>) from LJC - London Java >> Community <https://www.meetup...;. >> To learn more about Mani , visit his/her member profile >> <https://www.meetup...; >> To report this message or block the sender, please click here >> <https://www.meetup...; >> Set my mailing list to email me As they are sent >> <https://www.meetup...; | >> In one daily email >> <https://www.meetup...; | >> Don't send me mailing list messages >> <https://www.meetup...; >> >> Meetup, POB 4668 #37895 NY NY USA 10163 >> <#14f47412adae369b_[masked]c4ea2bc7_> | [address removed] >> <mailto:[address removed]> >> >> >> >> >> >> >> -- >> Please Note: If you hit "*REPLY*", your message will be sent to >> *everyone* on this mailing list ([address removed] >> <mailto:[address removed]>) >> This message was sent by Meetup on behalf of Gemma >> <https://www.meetup...; from >> LJC - London Java Community >> <https://www.meetup...;. >> To report this message or block the sender, please click here >> <https://www.meetup...; >> Set my mailing list to email me As they are sent >> <https://www.meetup...; | In >> one daily email >> <https://www.meetup...; | >> Don't send me mailing list messages >> <https://www.meetup...; >> >> Meetup, POB 4668 #37895 NY NY USA 10163 <#14f47412adae369b_> | >> [address removed] <mailto:[address removed]> >> >> >> >> >> >> >> -- >> Please Note: If you hit "*REPLY*", your message will be sent to >> *everyone* on this mailing list ([address removed] >> <mailto:[address removed]>) >> This message was sent by Meetup on behalf of Ben Evans >> <https://www.meetup...; from LJC - >> London Java Community <https://www.meetup...;. >> To report this message or block the sender, please click here >> <https://www.meetup...; >> Set my mailing list to email me As they are sent >> <https://www.meetup...; | In one >> daily email >> <https://www.meetup...; | Don't >> send me mailing list messages >> <https://www.meetup...; >> >> Meetup, POB 4668 #37895 NY NY USA 10163 <#> | [address removed] > > > > > -- > Please Note: If you hit "REPLY", your message will be sent to everyone on this mailing list ([address removed]) > https://www.meetup... > This message was sent by Meetup on behalf of Ingo Hoffmann (https://www.meetup...) from LJC - London Java Community. > Set my mailing list to email me > > As they are sent > https://www.meetup... > > In one daily email > https://www.meetup... > > Don't send me mailing list messages > https://www.meetup... > Meetup, POB 4668 #37895 NY NY USA 10163 | [address removed] >
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