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Mailing List Archive

Subject Sender Date
Volunteers (Java / Adopt OpenJDK) needed for Women Who Code meetup - Hi all, I'm forwarding a message from Kanke who's one of the volunteers at Women Who Code.  She's organising a similar Hackday to our AdoptOpenJDK regular monthly event at Salesforce. Martijn V. Feb 10, 2016 8:00 AM
Fwd: [vJUG] vJUG January Roundup and a full packed February! - Here's a January round up from the vJUG, including a link to the latest episode of The Java Council -- Enjoy! I'd pay particular attention t Simon M. Feb 8, 2016 5:40 PM
Events from our Partners - LJC - Maggie C. Feb 7, 2016 3:14 PM
Events from our Partners - LJC - Maggie C. Jan 18, 2016 11:32 AM
Winner Announcement - 48HR RAFFLE: 1 ticket Monki Gras Conference (London - 28/29 January 2016) - Anji C. Jan 13, 2016 1:10 PM
RE: Adopt OpenJDK and the Java Community - Mani Dec 23, 2015 8:54 PM
FW: Free ebook - Java: The Legend - Preview not available Mani Dec 23, 2015 8:50 PM
Re: LJC OpenConf 2015 - a big THANK YOU! - Hello everyone! Yeah, it's me again :) If you didn't attend the OpenConf, you can stop reading now :P I was looking at the feedback provided through the survey and Abraham Marín P. Dec 16, 2015 5:25 PM
Open conference lightning talk on 3D imaging on JVM? - Maggie C. Dec 14, 2015 9:30 AM
Fwd: Aimar Foundation - volunteers needed for install day (18th December) - Hi all, Crisis at Xmas is still looking for volunteers to help out with the installation and tear down of the various sites.  Here's the det Martijn V. Dec 8, 2015 12:31 PM
LJC OpenConf 2015 - a big THANK YOU! - Hello everyone! I just wanted to say, on behalf of all the people behind the LJC Open Conference, massive thanks for making it a success. As I mentioned during the conference itself, the key to an unconference is the atte Abraham Marín P. Dec 7, 2015 11:00 PM
Fwd: [vJUG] vJUG November roundup, plus Mutation testing and XText - Talks in November included one from Trisha Gee and one from John Davies. Enjoy. Thanks -- Simon ---------- Forwarded message ---------- From: Simon M. Dec 4, 2015 12:38 PM
Adopt OpenJDK and the Java Community - Mani Dec 2, 2015 9:37 PM
Re: [ljc] Upcoming free dev event - specifically wants participation from the wider community - Hi Ben, I'll  announce it to our members at Women Who Code London when I next send a broadcast out. Best, Gen Gen A. Dec 2, 2015 3:44 PM
Re: [ljc] Upcoming free dev event - specifically wants participation from the wider community - Sounds pretty awesome. If it wasn't because that day is my girlfriend birthday's celebration, I would go. If you can, you should :) 2 Abraham Marín P. Dec 2, 2015 10:04 AM
Upcoming free dev event - specifically wants participation from the wider community - Hi, Bit of an unusual one, this. Some old friends at the London Perl usergoup (London.pm) are holding their annual "London Perl Workshop" (their equivalent of our Open Conference) on Dec 12th. This year, one of their conscious themes is to invi Ben E. Dec 1, 2015 4:13 PM
Winner Announcement - 48HR RAFFLE: 2 tickets, ThingMonk conference, Dalston, London (Dec 3 -[masked]) - Anji C. Dec 1, 2015 4:07 PM
Events from our Partners - LJC - Hi guys I hop Maggie C. Dec 1, 2015 2:49 PM
REMINDER: Live stream of LJC Open Conf TODAY! :) - Hey, Sorry for partly shouting, but this is important ;o) Catch the live stream of Simon Ritter and Steve Elliott talking about the last 20 years of Java t oday at 1 Simon M. Nov 28, 2015 7:15 AM
Re: [ljc] LJC Open Conf Keynote -- Live Streamed - Thanks for the details Simon: this is great news. I can’t Maggie C. Nov 27, 2015 1:28 PM
LJC Open Conf Keynote -- Live Streamed - Hey folks, Whether or not you got a ticket for tomorrow's conference of not, the keynote "20 years of Java", by Simon Ritter and Steve Elliott, will be streamed live on a new Simon M. Nov 27, 2015 1:18 PM
Re: [ljc] OpenConf 2015: only 3 tickets remaining - 1 little ticket left! QUIIICK :D On 27 November 2015 at 11:41, Abraham Marín Pérez < abraham.m Simon M. Nov 27, 2015 12:44 PM
OpenConf 2015: only 3 tickets remaining - Hello everyone! I don't know if you can be as excited as I am about the Open Conference tomorrow, but I really hope you are :D. At the moment of writing this email there are only 4... wait, 3 Abraham Marín P. Nov 27, 2015 9:38 AM
Only 5 more open conf tickets left! (This Saturday!) - When they're gone, they're gone! https://sites.google.com/site/­ljcopenconference/ljc-conferen­ce-2015 Simon. Simon M. Nov 26, 2015 3:24 PM
Re: [ljc] Fwd: Nomination for JCP EC Elections for 2015 - Call on November 6 at 10 am PST - That’s brilliant news, a big “well done" for all the hard work!! Mike Burton [address removed] > On 24 Nov 2015, at 17:09, Martijn Verburg wrote: > > Hi all, > > Congratulations! Once more the community ha Mike B. Nov 24, 2015 8:18 PM
Fwd: Nomination for JCP EC Elections for 2015 - Call on November 6 at 10 am PST - Hi all, Congratulations! Once more the community has asked us to represent developers at the Java stds body and we almost bear Eclipse to the top spot this time as well :-) Martijn V. Nov 24, 2015 5:05 PM
Just 14 tickets left for LJC Open Conf - Buy one now! https://www.eventbrite.co.uk/e­/ljc-open-conference-2015-tick­ets-19112989466 Thanks -- Simon Simon M. Nov 24, 2015 12:12 PM
Re: [ljc] LJC Open Conference - 28th of November - here we go!! - For anyone interested in signing up to the slack group - if you Barry C. Nov 20, 2015 1:11 PM
Re: [ljc] LJC Open Conference - 28th of November - here we go!! - Yep  londonjavacommunity.slack.com Cheers, Martijn On 20 Novembe Martijn V. Nov 20, 2015 12:55 PM
Re: [ljc] LJC Open Conference - 28th of November - here we go!! - I'd be interested too. :) Also, we have a Slack channel? :o On Wed, 18 Nov[masked]:59 Marius Filip < marius.filip.self@gmai Navin S. Nov 20, 2015 11:02 AM
Re: [ljc] LJC Open Conference - 28th of November - here we go!! - Lee I am interested in the topic of decompilation that you mention. Regards, Marius On 17 Nov[masked]:47, "Lee Benfield" < lee@be Marius F. Nov 18, 2015 1:31 PM
Re: [ljc] LJC Open Conference - 28th of November - here we go!! - Or do what I'm going to do - spend a couple of hours thinking about it and writing notes, then just wing the rest of it ;-) On Wed, Nov 18, 2015 at 9:41 AM, Simon Maple Colin V. Nov 18, 2015 11:02 AM
Re: [ljc] Java 8 Stream filter & Predicate negate - Be careful with conciseness, it can very quickly turn into obscurity ;-) In any case, and as Richard pointed out, I think it's very subjective, a debate nearly akin to spaces vs. tabs, each person / team will have a p Abraham Marín P. Nov 18, 2015 10:14 AM
Re: [ljc] LJC Open Conference - 28th of November - here we go!! - First of all, we tend to have more slots than sessions, but this tends to only be by a couple, so the chances are, if you submit, you present :) Secondly, it's your session so you can structure it how you choose. If it Simon M. Nov 18, 2015 9:38 AM
Re: [ljc] LJC Open Conference - 28th of November - here we go!! - You could throw it out on the Slack group to see if there's interest? On Tue, Nov 17, 2015 at 1:47 PM, Lee Benfield < Colin V. Nov 17, 2015 3:00 PM
Winner Announcement - 48HR RAFFLE: 1 ticket, ContainerSched conference, Skills Matter, London (Nov15) - Anji C. Nov 17, 2015 1:46 PM
Re: [ljc] LJC Open Conference - 28th of November - here we go!! - Hi All -  It'd be great if the proposals page had an 'I'd be interested in that' section.... In the true spirit of Lazy Development (of presentations) - I've added a Lee B. Nov 17, 2015 1:13 PM
Re: [ljc] Java 8 Stream filter & Predicate negate - Talking of method references, I should mention that they have a bug in some JDK versions when combined with bounded types. Brian Goetz did confirm it as a bug.  Check this SO thread out. Sleiman J. Nov 17, 2015 12:39 PM
Re: [ljc] Java 8 Stream filter & Predicate negate - Method references, where available, are definitely more concise - and you don’t need the extra ceremony of introducing a name for the value within the lambda.  It’s also very believable that a future release of java/javac could emit mo Kevin W. Nov 17, 2015 9:48 AM
Re: [ljc] Java 8 Stream filter & Predicate negate - Preview not available Barry C. Nov 16, 2015 3:15 PM
Events fro our Partners - LJC - Maggie C. Nov 16, 2015 3:07 PM
Re: [ljc] Java 8 Stream filter & Predicate negate - Hi Sleiman, Richard W. Nov 16, 2015 3:02 PM
Re: [ljc] Java 8 Stream filter & Predicate negate - Hi Mike, Richard W. Nov 16, 2015 2:52 PM
Re: [ljc] Java 8 Stream filter & Predicate negate - +1 on that. Another thing is when you use a method reference and want the IDE to create the method (TDD right?), IDEA creates this as a static method with the object as the first argument.  Going the Warburton way avoids Colin V. Nov 16, 2015 2:42 PM
Re: [ljc] Java 8 Stream filter & Predicate negate - Could you elaborate more Richard, why do you prefer the lambda approach?  Sleiman On Mon, Nov 16, 2015 at 12:30 PM, Mike Burton < Sleiman J. Nov 16, 2015 1:04 PM
Re: [ljc] Java 8 Stream filter & Predicate negate - FWIW, on my Java 8 best practices:   http://www.slideshare.net/scol­ebourne/java-se-8-best-practic­es-53975908 I argue that method ref Stephen Nov 16, 2015 12:56 PM
Re: [ljc] Java 8 Stream filter & Predicate negate - Hi Richard, I would have agreed with you until I read Heinz Kabutz's "Lamb Mike B. Nov 16, 2015 10:02 AM
Looking for a few reviewers for my second technical book: Digital Java EE 7 - Hi all Here something for the London Java Community I am looking for reviewers for my second technical book Digital Java EE 7 Web Application Developer by Packt Publishing Peter P. Nov 16, 2015 9:44 AM
RE: [ljc] FOSDEM & Snowboarding - You c Mani Nov 14, 2015 9:48 PM
Re: [ljc] Java 8 Stream filter & Predicate negate - Hi John, Richard W. Nov 13, 2015 8:03 PM
Have you had problems getting your messages to the LJC mailing list? - Hi guys I’v Maggie C. Nov 13, 2015 9:32 AM
Re: [ljc] Java 8 Stream filter & Predicate negate - There is not a cleaner way due to the limitation of type inference in Java. so you have to "down-cast" the infered lambda ex: Stream.of(1, 2, 3, 4, 5, 6, 7).filter(((Predicate<Integ­er>) c->c%2==0). Sleiman J. Nov 12, 2015 1:48 PM
Re: [ljc] Java 8 Stream filter & Predicate negate - You have to write a utility method: https://github.com/OpenGamma/S­trata/blob/master/modules/ Stephen Nov 12, 2015 1:46 PM
Re: [ljc] Java 8 Stream filter & Predicate negate - You could use an identity function to convert the method reference to a Predicate in order to access methods on the Predicate inline. Or you could create a special case helper for negate. Benji W. Nov 12, 2015 1:34 PM
Re: [ljc] FOSDEM & Snowboarding - No skiers allowed? :P On 12. nov. [masked]:54, Ben Evans wrote: > Hi, > > The FOSDEM arrangements are proceeding apace. See > https://fosdem.org/2016/ for details - it's in Brussels, it's Jan 30 & > 31st and it's free. > > The Java room is still Gareth W. Nov 12, 2015 1:25 PM
Re: [ljc] FOSDEM & Snowboarding - see you at Fosdem, still trying to work out what topic I could do a talk that people would want to attend... John On 12 November 2015 at 11:54, Ben Evans John P. Nov 12, 2015 12:39 PM
Java 8 Stream filter & Predicate negate - afternoon, I'm still getting use to Java 8, so thought I'ld ask. Has anyone found a good/clean way using .filter and accessing the Predicate negate() John P. Nov 12, 2015 12:27 PM
FOSDEM & Snowboarding - Hi, The FOSDEM arrangements are proceeding apace. See https://fosdem.org/2016/ for details - it's in Brussels, it's Jan 30 & 31st and it's free. The Java room is still accepting proposals until Dec 1st - so please think about submitting a talk. A Ben E. Nov 12, 2015 11:52 AM
How to become a Mentor - Hi guys Earli Maggie C. Nov 12, 2015 8:52 AM
Re: [ljc] LJC Open Conference - 28th of November - here we go!! - +1 to Abraham's words. Many of us from London that are now on the conference circuit have honed our s Daniel B. Nov 11, 2015 10:23 AM
JCP Elections 2015 - Hi all, For those of you who are fully signed up JCP members, you'll have received instructions on voting in the elections. We're on the ballot, assuming you continue to agree with the wor Martijn V. Nov 10, 2015 7:46 PM
Open conf tickets selling fast! - About 100 have already been sold in just a few days. Only 75 left on sale - Snap one up so you don't miss out! https://sites.google.com/site/­ljco Simon M. Nov 10, 2015 2:24 PM
Do you know a tech student? Tell them about Meet a Mentor events - Hi guys Maggie C. Nov 10, 2015 1:45 PM
Re: [ljc] LJC Open Conference - 28th of November - here we go!! - I just bought my ticket too :) BTW, I'd like to remind everyone at the LJC that the OpenConference is not just about attending some really cool talks, but also about giving talks. You may think that you're Abraham Marín P. Nov 9, 2015 10:59 AM
RE: [ljc] Fwd: [jug-leaders] Java Community Keynote Now Available - Mani Nov 6, 2015 11:10 PM
Fwd: [jug-leaders] Java Community Keynote Now Available - ---------- Forwarded message ---------- From: Margo Davis < [address removed] > Date: Friday, 6 November 2015 Subject: [jug-leaders] Java Community Keynote Now Available To: Martijn V. Nov 6, 2015 9:28 AM
Crisis at Xmas - the LJC's charitible work with the Aimar Foundation - Hi all, For the past two years the LJC has contributed hugely to the Aimar Foundation's mission to make Xmas for the home Martijn V. Nov 5, 2015 7:29 PM
Re: [ljc] Javaone sessions - Awesome, thanks Martijn! And if you're looking to build microservices with Java, can I Daniel B. Nov 5, 2015 2:33 PM
Bug in method references - Hi guys. Just wanted to warn about a serious bug in some versions of jdk 1.8 related to intersection types being resolved in method references  check this question on S Sleiman J. Nov 5, 2015 11:03 AM
Re: [ljc] LJC Open Conference - 28th of November - here we go!! - £25 rather than $25 :) But worth every penny! Like Martijn says EVERY YEAR we sell out, and EVERY YEAR we have a waiting list. If you want a ticket... buy a ticket :) I've bought mine, see you t Simon M. Nov 5, 2015 9:54 AM
LJC Open Conference - 28th of November - here we go!! - Hi all, OK, we're live here  https://sites.google.com/site/­ljcopenconfer Martijn V. Nov 5, 2015 9:39 AM
Fwd: [ec] [Fwd: JCP EC Meet the Candidates Call this Friday] - Hi all, We're up for election again for the Java Community Process ( JCP ) aka the Java standards body.  It's worth jumping on this call to hear what the fellow conte Martijn V. Nov 5, 2015 7:56 AM
Javaone sessions - Hi all, A list of the videos can be found here: https://www.reddit.com/r/java/­comments/3requx/javaone_2015_s­essions/ Martijn V. Nov 5, 2015 7:51 AM
Events from our Partners - LJC - Maggie C. Nov 4, 2015 9:01 AM
Fwd: [ANN] Apache Maven JDeps Plugin 3.0.0 Released - Please share the news below with your teams!  Every Maven based Java project should run this as a matter of course.  It'll help avoid a whole lot of pain for adopting Java 9 :-). Martijn V. Oct 30, 2015 8:07 PM
Fwd: [jc-user] Foods 2015 CFP now open - Hi all, FOSDEM is the largest and craziest Open Source conference in the world and the Free Java room has two days.  Talks tend to be Free Software community or deep dive t Martijn V. Oct 28, 2015 6:30 PM
New Android development report - Just to let you know there's a new Android report that has just been released by RebelLabs. Two of the authors are LJCers, including Isra Boza Rodreguez a Simon M. Oct 23, 2015 1:26 PM
LJC Open Conference 2015 - Abraham Marín P. Oct 23, 2015 9:49 AM
Fwd: Newsletter roundup & the vJUG at JavaOne! - Hello, Here's the (late) vJUG roundup with session replays. Note that next week our vJUG podcast, the Java Council will be live streamed from Java one, including interviews with Brian Goetz and more. Simon M. Oct 22, 2015 12:16 PM
Re: Re: [ljc] Leaking file handles against a directory - It looks like something a @StreamRequiresClosing annotation on the API could be useful. On Thu, 22 Oct 2015 at 09:24, Tom Johnson < [address removed] > wro Ged B. Oct 22, 2015 12:09 PM
Re: Re: [ljc] Leaking file handles against a directory - We hit exactly this problem a couple of months ago - it started with leaking file handles, and it turned out to be a good illustration of some broader principles. Someone at work suggested I write a blog post about the experience, and this Tom J. Oct 21, 2015 6:54 PM
Re: [ljc] Java 8 Files.walk Stream and issues with Windows Security/Symlinks - cheers for the insight sam any rough guidance on how i could potentially fix Files.walk? should i get it not to enter hidden directories? check for x attribute before navigating into a directory? John P. Oct 21, 2015 10:42 AM
Re: [ljc] Java 8 Files.walk Stream and issues with Windows Security/Symlinks - "C:\Users\Any User\AppData\Local\Application­ Data" is actually a junction in Windows. A junction is a type of reparse point in NTFS, the file system used by Windows. This is a f Sam Oct 20, 2015 3:11 PM
Re: [ljc] Leaking file handles against a directory - On 20 October 2015 at 10:19, Jordan Stewart < Adam R. Oct 20, 2015 1:03 PM
Re: [ljc] Leaking file handles against a directory - Thanks for confirming Martjin, your help is much appreciated. On 20 October 2015 at 10:16, Martijn Verburg < Adam R. Oct 20, 2015 12:57 PM
Re: [ljc] Leaking file handles against a directory - Ah okay! Thank you very much :-) So I had naively assumed that you didn't need to close streams, I had rather assumed that when they are consumed they would be closed. I should have read the d Adam R. Oct 20, 2015 12:56 PM
Re: [ljc] Java 8 Files.walk Stream and issues with Windows Security/Symlinks - I can't confirm or deny but you can look in the Java bug database for any open issues on this.   https://bugs.openjdk.java.net/­ I can only imagine you're falling foul of the W Martijn V. Oct 20, 2015 12:55 PM
Re: [ljc] Java 8 Files.walk Stream and issues with Windows Security/Symlinks - Originally I was mixing and matching users and folder permissions but the last test was a regular user, launching their own standing command prompt, trying to walk his own home directory. I've tried this John P. Oct 20, 2015 10:54 AM
Re: [ljc] Leaking file handles against a directory - Yep - that's them.  I got a short code sample to leak on my Mac as well On Tuesday, 20 October 2015, Jordan Stewart < [address removed] > wrote: Martijn V. Oct 20, 2015 10:14 AM
Re: [ljc] Java 8 Files.walk Stream and issues with Windows Security/Symlinks - Is this simply not a case where the user running the java process doesn't have permission to read some files/dirs? On Tuesday, 20 October 2015, John Patrick < [address removed] > wrote: Martijn V. Oct 20, 2015 10:11 AM
Re: [ljc] Leaking file handles against a directory - If you're interested in why streams are not closed after a terminal op Brian Goetz explains here: Jordan S. Oct 20, 2015 9:50 AM
Re: [ljc] Java 8 Files.walk Stream and issues with Windows Security/Symlinks - evening all, I've progressed sligtly but still appear to have a werid execution issue with Files.walk with a Windows User's Home Drive. This is a bog standard windows command prompt, no &qu John P. Oct 19, 2015 10:18 PM
ACCU 2016 conference - The annual ACCU conference is being held in Bristol, UK for 2016. The call for sessions is currently open, to close[masked] (yes, it is a Friday :-) Although ACCU originates from a C and C++ background, and there is a strong C++ flavour still, it Russel W. Oct 19, 2015 5:44 PM
Re: [ljc] Leaking file handles against a directory - The most common cause of external resource leaks I have seen in recent years is combining threadlocals with threadpools see  https://plumbr.eu/b Dexter L. Oct 19, 2015 5:14 PM
Re: [ljc] Leaking file handles against a directory - Yeah, looks like there are a few places in the project that Files.list(..) streams aren't being closed - https://github.com/exist-db/ex­ist/search?q=%22files.list%22&­am Jordan S. Oct 19, 2015 2:56 PM
Re: [ljc] Leaking file handles against a directory - Adam R. Oct 19, 2015 2:15 PM
Re: [ljc] Leaking file handles against a directory - Are you using any of the streaming methods and not explicitly closing the stream? Eg Files.list(path) Terminal ops like foreach don't close streams, which seems an odd decision given that the stream is not usable afterwards. Jordan S. Oct 19, 2015 1:35 PM
Winner Announcement - 48 HR RAFFLE: 1 free ticket to London Big Data Conference (25 Nov 2015) - Anji C. Oct 19, 2015 1:15 PM
Re: [ljc] Leaking file handles against a directory - Hi Adam, On 19 October 2015 at 09:07, Adam Retter < [address removed] > Martijn V. Oct 19, 2015 12:53 PM
Events from our Partners - LJC - Good morning! Maggie C. Oct 19, 2015 11:14 AM

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