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• What might be the future of CSS? [closed]

  - by Starx

  As we all know css is now more powerful than ever. The possibility of a Web Design is countless in CSS3. This keeps me wondering, what might future holds for CSS? What is your opinion?

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• Coming up with manageable game ideas as a hobbyist game developer

  - by Kragen

  I'm trying to come up with ideas for games to develop - as per the advice on this question I've started jotting down and brainstorming my ideas as I get them, and it has worked relatively well - I now have a growing collection of ideas that I think are relatively original. The trouble is that I'm a solo hobbyist developer so my time is limited (and I have short attention span!) I've decided to set myself a limit of 1 working week (i.e. 35-40 hours) to develop / prototype my game, but all of the ideas that really spark my imagination are far too complex to be achievable in that sort of time (e.g. RTS or RPG style gameplay), and none of my simpler ideas really strike me as being that good (and whenever I get a flash of inspiration I invariably end up making things more complicated!) Am I being too picky - should I just take one of my simpler ideas and have a go?

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• How to study for 70-573 Microsoft SharePoint 2010, Application Development

  - by ybbest

  I just passed my 70-573 exam today and would like to Share my experience on learning SharePoint 2010 as a beginner. 1. Book Microsoft SharePoint 2010: Building Solutions for SharePoint 2010 by Sahil Malik http://apress.com/book/view/1430228652 Sahil is an expert and MVP in SharePoint 2010.He certainly know his field and the book is well written. More importantly Sahil has got very good sense of humor in delivering the knowledge. 2.A development machine It is of great importance to have a dev machine , you cannot learn a new technology by just reading a book nor by watching some training videos. You need get your hands dirty with SharePoint a lot. 3.Training videos Since I have one year subscription with learndev , I use them as my learning resources. It is quite cheap , only cost US $99 for a year subscription and you will get not only the SharePoint training but the whole training library .The videos are from Appdev . Appdev training is of high quality. http://www.appdev.com/ http://www.learndevnow.com/ You can also get the videos from Microsoft SharePoint site. They are pretty good too. But bear in mind , by just watching these videos you will not learn much , you need to build a SharePoint 2010 machine and play with it .Try to write the sample code yourself and not just copy and paste. 4. Write blogs about your learning. This will motive you in your long journey with SharePoint learning. 5. Do check out the patterns & practices SharePoint Guidance on codeplex. http://spg.codeplex.com/ 6.Thanks for Becky Bertram,who kindly put up all the exam requirements with links to MSDN http://blog.beckybertram.com/Lists/Exam%2070573%20Study%20Guide/AllItems.aspx

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• Professional Windows Phone 7 Game Development: Creating Games using XNA Game Studio 4

  - by Chris Williams

  In 24 short days*, my (along with the awesome George W. Clingerman) first book will be released:   Professional Windows Phone 7 Game Development: Creating Games using XNA Game Studio 4 (or as we like to call it, that damned 550 page monstrosity that nearly killed us) Weighing in at 552 pages and featuring a foreward by the legendary James Silva (Ska Studios, creator of The Dishwasher: Dead Samurai, The Dishwasher: Vampire Smile, I MAED A GAME W1TH Z0MB1ES 1NIT!!!1, and more...) this book gives thorough coverage of XNA 4.0 as it relates to Windows Phone 7. The book is written in a light, conversational tone, which means (unlike some books) you won't be compelled to gouge your eyes out with a rusty spork after reading the first few pages. At least, that’s the intent. If you do feel compelled to engage in some feats of eye-gouging sporkage, we (the authors of this book) would like to point out that we are not responsible and that seeking the help of a mental health professional might be advised. (We’re not qualified to dispense medical advice either.) The book is structured to introduce relevant material first, with code snippets and samples of how to use various phone features and XNA concepts, with helpful side notes along the way. After you've been exposed to a few chapters worth of concepts, you get the chance to bring them together by building a game that leverages those features. This book contains THREE (3!) complete games, including: Drive & Dodge (a racing game), Poker Dice (roll dice to make poker hand combinations) and Picture Puzzle (take a photo and turn it into a jigsaw puzzle.) Writing this book has been an incredible experience, and we hope reading it will be equally informative for all of you. We’re also happy to announce there will be a Kindle edition available, along with various other electronic media. Get your copy from Wiley.com, Amazon.com, Barnes & Noble, and anywhere else awesome books are sold. *more or less… some sites list the publication date as early march, but the official street date is 2/21/2011

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• Legal question.

  - by Kjow

  Hi all, a question bounces in my head from some time. Copyright laws are different by nation to nation, but generally which is the border line to break a copyright? Suppose to make a game that is very similar to an other come out in the past, e.g. a Pacman clone or a Space Invaders clone, but nothing from original titles are grabbed and maybe they're not made in 2d, but in 3d. The titles aren't "Pacman clone - the return" or "Space Invaders - they did it again", and not also "Pocman" or "Space Evaders" (maybe this last could be fun for some "creative financers" that need to escape from earth :D). Finally suppose to call these some thing like "Popcorn, fruit and ghosts" (or the acronym: "PFG") and "Kill all enemy" (or the acronym: "KAE"). In this case (not grab- all self-made) and no references to original titles, but with a game that feels very similar to "ispiration ones"... they could be sold to somewhere like "Valve's Steam"? Regards, Kjow

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• Avoid Memory Leaks in SharePoint2010 Development

  - by ybbest

  When you develop SharePoint solution using code, you need to Dispose SPWeb appropriately to avoid memory Leaks. The general guideline for this are: Dispose Not to dispose OpenWebEnumerating Webs or AllWebs ParentWebRootWeb SPWeb from SPContext There are more rules than the one list above and as a smart SharePoint developer, you do not have to memories all the rules .There is a tool called SharePoint Dispose Checker which can help you to find potential memory leak. To use SPDisposeChecker in you solution, you need to download the tool from MSDN Code Gallery and install it in your development machine as follow. 1. Run the installer with elevated privilege. 2. Accept the agreement and click next. 3. Select those two options and click next. 4. Select Everyone and click Next. 5. Go to Toolsà SharePoint Dispose Check to Configure the SPDisposeCheck. 6. You can change the Treat problems as Errors to Warnings. 7. after clicking Save, you are all set to use the tool.Recompile my project , I can get the result below. References: SharePoint 2007/2010 “Do Not Dispose Guidance” + SPDisposeCheck

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• ASP.Net or WPF(C#)?

  - by Rachel

  Our team is divided on this and I wanted to get some third-party opinions. We are building an application and cannot decide if we want to use .Net WPF Desktop Application with a WCF server, or ASP.Net web app using jQuery. I thought I'd ask the question here, with some specs, and see what the pros/cons of using either side would be. I have my own favorite and feel I am biased. Ideally we want to build the initial release of the software as fast as we can, then slow down and take time to build in the additional features/components we want later on. Above all we want the software to be fast. Users go through records all day long and delays in loading records or refreshing screens kills their productivity. Application Details: I'm estimating around 100 different screens for initial version, with plans for a lot of additional screens being added on later after the initial release. We are looking to use two-way communication for reminder and event systems Currently has to support around 100 users, although we've been told to allow for growth up to 500 users We have multiple locations Items to consider (maybe not initially in some cases but in future releases): Room for additional components to be added after initial release (there are a lot of of these... perhaps work here than the initial application) Keyboard navigation Performance is a must Production Speed to initial version Low maintenance overhead Future support Softphone/Scanner integration Our Developers: We have 1 programmer who has been learning WPF the past few months and was the one who suggested we use WPF for this. We have a 2nd programmer who is familiar with ASP.Net and who may help with the project in the future, although he will not be working on it much up until the initial release since his time is spent maintaining our current software. There is me, who has worked with both and am comfortable in either We have an outside company doing the project management, and they are an ASP.Net company. We plan on hiring 1-2 others, however we need to know what direction we are going in first Environment: General users are on Windows 2003 server with Terminal Services. They connect using WYSE thin-clients over an RDP connection. Admin staff has their own PCs with XP or higher. Users are allowed to specify their own resolution although they are limited to using IE as the web browser. Other locations connects to our network over a MPLS connection Based on that, what would you choose and why? I am asking here instead of SO because I am looking for opinions and not answers

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• Can LittleBigPlanet2's engine be used for other ?

  - by Bill

  LittleBigPlanet2 just came out. I've worked with the original LBP level editor a bit and really enjoyed it. I've read that LBP2's featureset in the game is much richer; is it possible to use these advanced features to create different sorts of game other than just a regular platformer? I imagine that something along the lines of a Breakout clone would definitely be manageable, but I'm interested in hearing more about the capabilities of the platform.

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• Silverlight 4 and Windows Phone Development

  - by Bobby Diaz

  There were a lot of announcements made during the keynote at MIX10 today, most notable were the releases of Silverlight 4 RC, Silverlight 4 Tools for Visual Studio 2010, Expression Blend 4 Beta and the Windows Phone 7 Developer Tools.  I was glad to see that developers will be able to use Silverlight to create awesome applications for Windows Phone 7 so we can reuse our WPF and Silverlight skills to target mobile devices! With so much information coming out of this conference, I wanted to be sure to save a list of links that I can quickly reference as I learn about these exciting new technologies: Silverlight 4 A guide to what has changed in the Silverlight 4 RC Silverlight 4 Beta – A guide to the new features WCF RIA Services Silverlight 4 Information Silverlight Toolkit  March 2010 Release  was still showing Nov09 at time of posting… Windows Phone 7 Getting Started with Silverlight and Windows Phone 7 Development Building your first Silverlight for Windows Phone Application Silverlight for Windows Phone Windows Phone for Developers Developing for Windows Phone 7 Series Whew, and that’s just from day 1!  Can’t wait to see what else comes out tomorrow.  Hopefully these links will give you a good starting point for Silverlight 4 and Windows Phone 7 information. Enjoy!

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• finite state machine used in mario like platform game

  - by juakob

  I dont understand how to use a finite state machine with the entity controlled by the player. For example i have a mario(2d platform) i can jump,run,walk,take damage,swim,etc so my first thought was to use this actions as states. But what happen when you are running when you take damage? or jumping taking damage and shooting at the same time? I just want to add functionalities(actions) to the player in a clean way(not using ifs for all the actions in the entity update)

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• PHP remote development workflow: git, symfony and hudson

  - by user2022

  I'm looking to develop a website and all the work will be done remotely (no local dev server). The reason for this is that my shared hosting company a2hosting has a specific configuration (symfony,mysql,git) that I don't want to spend time duplicating when I can just ssh and develop remotely or through netbeans remote editing features. My question is how can I use git to separate my site into three areas: live, staging and dev. Here's my initial thought: public_html (live site and git repo) testing: a mirror of the site used for visual tests (full git repo) dev/ticket# : git branches of public_html used for features and bug fixes (full git repo) Version Control with git: Initial setup: cd public_html git init git add * git commit -m ‘initial commit of the site’ cd .. git clone public_html testing mkdir dev Development: cd /dev git clone ../testing ticket# all work is done in ./dev/ticket#, then visit www.domain.com/dev/ticket# to visually test make granular commits as necessary until dev is done git push origin master:ticket# if the above fails: merge latest testing state into current dev work: git merge origin/master then try the push again mark ticket# as ready for integration integration and deployment process: cd ../../testing git merge ticket# -m "integration test for ticket# --no-ff (check for conflicts ) run hudson tests visit www.domain.com/testing for visual test if all tests pass: if this ticket marks the end of a big dev sprint: make a snapshot with git tag git push --tags origin else git push origin cd ../public_html git checkout -f (live site should have the latest dev from ticket#) else: revert the merge: git checkout master~1; git commit -m "reverting ticket#" update ticket# that testing failed with the failure details Snapshots: Each major deployment sprint should have a standard name and should be tracked. Method: git tag Naming convention: TBD Reverting site to previous state If something goes wrong, then revert to previous snapshot and debug the issue in dev with a new ticket#. Once the bug is fixed, follow the deployment process again. My questions: Does this workflow make sense, if not, any recommendations Is my approach for reverting correct or is there a better way to say 'revert to before x commit'

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• How to achieve highly accurate car physics such as Liveforspeed?

  - by Kim Jong Woo

  Liveforspeed is a racing simulator, there is amazing amount of realistic physics. for example, tires get warm, tire actually deforms when you turn corners. You need to play this game with a mouse at the minimum because it almost drives like the real thing. Anyhow, how does one achieve that level of physics simulation? Are there off-the-shelf solutions out there? If not, how does one start with simulating real world physics as close as possible. I would love to be able to work on an opensource car physics focused game. Imagine, more passionate developers, it could keep things going.

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• Step by Step screencasts to do Behavior Driven Development on WCF and UI using xUnit

  - by oazabir

  I am trying to encourage my team to get into Behavior Driven Development (BDD). So, I made two quick video tutorials to show how BDD can be done from early requirement collection stage to late integration tests. It explains breaking user stories into behaviors, and then developers and test engineers taking the behavior specs and writing a WCF service and unit test for it, in parallel, and then eventually integrating the WCF service and doing the integration tests. It introduces how mocking is done using the Moq library. Moreover, it shows a way how you can write test once and do both unit and integration tests at the flip of a config setting. Watch the screencast here: Doing BDD with xUnit, Subspec and on a WCF Service  Warning: you might hear some noise in the audio in some places. Something wrong with audio bit rate. I suggest you let the video download for a while and then play it. If you still get noise, go back couple of seconds earlier and then resume play. It eliminates the noise.  The next video tutorial is about doing BDD to do automated UI tests. It shows how test engineers can take behaviors and then write tests that tests a prototype UI in isolation (just like Service Contract) in order to ensure the prototype conforms to the expected behaviors, while developers can write the real code and build the real product in parallel. When the real stuff is done, the same test can test the real stuff and ensure the agreed behaviors are satisfied. I have used WatiN to automate UI and test UI for expected behaviors. Doing BDD with xUnit and WatiN on a ASP.NET webform Hope you like it!

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• Microsoft MVP Award &ndash; Data Platform Development

  - by Dane Morgridge

  For those who don't already know, yesterday I received my first Microsoft MVP Award in Data Platform Development.  With less than 5,000 MVPs in the world overall and about 20 in the Data Platform category, saying I am honored would be an understatement.  From the first time I spoke at a code camp, I was totally hooked and have had a blast travelling around the east coast speaking at code camps and users groups.  I'd like to take the time to thank Dani Diaz (@danidiaz) for the nomination and everyone who supported me, especially my wife Lisa for letting me travel and speak as much as I have and putting up with me for late nights and such.  Roska Digital, my employer, also deserves a shout out for supporting me and giving me the necessary time off to get to speaking engagements.  With any luck, the next year will be at least as fun if not more than the last one has.  I hope to see you at a code camp or user group meeting soon! I would also like to send a congratulations to the other new Philly Area MVPs: John Angelini (@johnangelini) & Ned Ames (@nedames) You can find out more about the Microsoft MVP Award at https://mvp.support.microsoft.com/

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• Windows Azure Database (SQL Azure) Development Tip

  - by BuckWoody

  When you create something in the cloud, it's real, and you're charged for it. There are free offerings, and you even get free resources with your Microsoft Developer Network (MSDN) subscription, but there are limits within those. Creating a 1 GB database - even with nothing in it - is a 1 GB Database. If you create it, drop it, and create it again 2 minutes later, that's 2 GB of space you've used for the month. Wait - how do I develop in this kind of situation? With Windows Azure, you can simply install the free Software Development Kit (SDK) and develop your entire application for free - you need never even log in to Windows Azure to code. Once you're done, you simply deploy the app and you start making money from the application as you're paying for it. Windows Azure Databases (The Artist Formerly Known As SQL Azure) is a bit different. It's not emulated in the SDK - because it doesn't have to be. It's just SQL Server, with some differences in feature set. To develop in this environment, you can use SQL Server, any edition. Be aware of the feature differences, of course, but just develop away - even in the free "Express" or LocalDB flavors - and then right-click in SQL Server Management Studio to script objects. Script the database, but change the "Advanced" selection to the Engine Type of "SQL Azure". Bing. Although most all T-SQL ports directly, one thing to keep in mind is that you need a Clustered Index on every table. Often the Primary Key (PK) is a good choice for that.

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• Is unit testing development or testing?

  - by Rubio

  I had a discussion with a testing manager about the role of unit and integration testing. She requested that developers report what they have unit and integration tested and how. My perspective is that unit and integration testing are part of the development process, not the testing process. Beyond semantics what I mean is that unit and integration tests should not be included in the testing reports and systems testers should not be concerned about them. My reasoning is based on two things. Unit and integration tests are planned and performed against an interface and a contract, always. Regardless of whether you use formalized contracts you still test what e.g. a method is supposed to do, i.e. a contract. In integration testing you test the interface between two distinct modules. The interface and the contract determine when the test passes. But you always test a limited part of the whole system. Systems testing on the other hand is planned and performed against the system specifications. The spec determines when the test passes. I don't see any value in communicating the breadth and depth of unit and integration tests to the (systems) tester. Suppose I write a report that lists what kind of unit tests are performed on a particular business layer class. What is he/she supposed to take away from that? Judging what should and shouldn't be tested from that is a false conclusion because the system may still not function the way the specs require even though all unit and integration tests pass. This might seem like useless academic discussion but if you work in a strictly formal environment as I do, it's actually important in determining how we do things. Anyway, am I totally wrong? (Sorry for the long post.)

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• ASP.NET MVC ....or.... PHP, Python, Ruby, Java...?

  - by Muaz Khan

  I’m using ASP.NET MVC in C# and jQuery as well as Ajax. A lot of other web technologies confuse me: PHP, Python, Ruby, Java (or C++) etc. What is your opinion about ASP.NET MVC? Should I choose something else? Today, everyone says, “PHP” is worldly used language..!! And that’s true!!! I’m confused, much confused about my future career. I’m worried I’m not going in right direction! Or for making my future brighter, whether I should choose something else other than ASP.NET MVC and C#. And what would that something else be? I want to be a web developer that can do everything with web (and for web). I’m worried if I’m wasting my time with ASP.NET MVC!!!

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• Android threads trouble wrapping my head around design

  - by semajhan

  I am having trouble wrapping my head around game design. On the android platform, I have an activity and set its content view with a custom surface view. The custom surface view acts as my panel and I create instances of all classes and do all the drawing and calculation in there. Question: Should I instead create the instances of other classes in my activity? Now I create a custom thread class that handles the game loop. Question: How do I use this one class in all my activities? Or do I have to create a separate instance of the extended thread class each time? In my previous game, I had multiple levels that had to create an instance of the thread class and in the thread class I had to set constructor methods for each separate level and in the loop use a switch statement to check which level it needs to render and update. Sorry if that sounds confusing. I just want to know if the method I am using is inefficient (which it probably is) and how to go about designing it the correct way. I have read many tutorials out there and I am still having lots of trouble with this particular topic. Maybe a link to a some tutorials that explain this? Thanks.

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• difference between Casini [IIS express] and VS Development server or Expression web

  - by anirudha

  MVC3 project can be run within Expression web and Visual studio as opened like a website not a project. they work same even if you open blogengine.net project in VS they take a time when you have more theme but expression web debug them in a second. well because theme design not matter for code. Expression web is a good because they save time for compile the code. even changes we make a little in design nothing in backend code.   i found a little difference between Casini and VS development server that if image putted in wrong way like <img src=”//img.png”/> instead of <img src=”/img.png”/> the error we make // instead of / that’s not worked in Expression web or Visual studio debugging but in Cassini it’s work fine.   Well i found that debug Blogengine.net in Expression web is a great thing because in VS they take a time like a minute to debug when you trying to debug first time. Expression Web save a time when we design themes within them and that’s much good option because web is also maked for design.   Well if you want to debug application faster then use casini but Expression web debugging is a good option when they take a long time to debug in Visual studio and EW debug them in a seconds.

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• Feasability of mobile 2D multiplayer RPG game with interactive bitmap background

  - by user2827214

  I'm looking to develop a 2D multiplayer RPG game for Android, with a bird's eye view similar to that of zelda/pokemon. The game is very simple in all ways since my intent is for thousands of players to occupy the same world which I imagine requires good performance. However, I am unsure about the performance requirements of two properties: the tile map that is used as a background is dynamic (interactive). For example, a player steps in the water, and the water turns black. Every tile in the game does this. the tile map is the same object used for all players, but it is displayed differently on each user's mobile device, even though the players exist in the same world. For example, the water that turned black is displayed as red on all other players' screens. I have knowledge of java, but almost none regarding game dev. tools. Is there a best process for these requirements? Should I develop in pure java, or use some tool like Slick2D etc.? How performance intensive are these properties, if even possible? Edit: There are no collisions in the game or difficult animations, I am imagining simply changing the colors of the tiles (like in the examples), and a client-server architecture

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• Development teams do not scale

  - by Matt Watson

  Recently I have been thinking about how development teams don't scale very well. The bigger a team and the product get, the more time the team spends fixing software bugs. This means they spend more time doing troubleshooting and debugging as the grow. The problem is that since developers don't typically have access to production servers, there is a bottleneck in the process when doing production troubleshooting.For a team that has 10 developers, I would guess than 0-2 of them have access to production servers. If that team grows to 20 people, it is probably the same 0-2 people that have production access still. This means that those 2 key people are a bottleneck and the team does not scale correctly as you add more resources. All those new developers want is to help track down and fix software bugs, but they don't have the visibility to do it. So they end up being less productive and frustrated because they really want to fix the problems. The people who do have production access end up spending too much of their time doing troubleshooting instead of working on new projects.The solution is to remove the bottlenecks and get those people working on more important tasks. Stackify can solve this problem by giving all the developers read only access to production servers. This allows them to access the information they need to do troubleshooting on their own.

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• Is the development of CLI apps considered "backward"?

  - by user61852

  I am a DBA fledgling with a lot of experience in programming. I have developed several CLI, non interactive apps that solve some daily repetitive tasks or eliminate the human error from more complex albeit not so daily tasks. These tools are now part of our tool box. I find CLI apps are great because you can include them in an automated workflow. Also the Unix philosophy of doing a single thing but doing it well, and letting the output of a process be the input of another, is a great way of building a set of tools than would consolidate into an strategic advantage. My boss recently commented that developing CLI tools is "backward", or constitutes a "regression". I told him I disagreed, because most CLI tools that exist now are not legacy but are live projects with improved versions being released all the time. Is this kind of development considered "backwards" in the market? Does it look bad on a rèsumè? I also considered all solutions whether they are web or desktop, should have command line, non-interactive options. Some people consider this a waste of programming resources. Is this goal a worthy one in a software project?

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• Difficulty / Process for mobile 2D multiplayer RPG game

  - by user2827214

  I'm looking to develop a 2D multiplayer RPG game for Android, with a bird's eye view similar to that of zelda/pokemon. The game is very simple in all ways since my intent is for thousands of players to occupy the same world which I imagine requires good performance. However, I am unsure about the performance requirements of two properties: the tile map that is used as a background is dynamic (interactive). For example, a player steps in the water, and the water turns black. Every tile in the game does this. the tile map is the same object used for all players, but it is displayed differently on each user's mobile device, even though the players exist in the same world. For example, the water that turned black is displayed as red on all other players' screens. I have knowledge of java, but almost none regarding game dev. tools. Is there a best process for these requirements? Should I develop in pure java, or use some tool like Slick2D etc.? How performance intensive are these properties, if even possible? Edit: There are no collisions in the game or difficult animations, I imagining simply changing colors of the tiles like in the examples, and a client-server architecture

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• any online service and/or application to develop a story line for an adventure game?

  - by Gajet

  I with a bunch of friend were talking about an adventure game. there will be too many possibilities in the game and the player can pick from wide varity of choices at each stage to do somthing. there will be consequences for each decision and they may or may not end the story. the result would be somthing like (picture from flashforward series S01E17)or if any of you watched hereos season 1 there is also similar time lines represented as strings in isaac mandez workshop. sorry for bad quality examples but right now I can't think of any better one. do you know any website or application which we can use to create the timeline? these features the least required ones: the ability to represent events as boxes. the ability to connect distant events to each other. the ability to move events on a scene freely the ability to expand the scene easily there should be some color options for the lines representing connections between events easily shareing the idea with one another it's much more better to have a WYSIWYG editor easily explore in the large scene of events in the end if you know any application which could let me create a board just like the one in my sample picture and share it whith other freinds it could help us a lot.

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• Mastering snow and Java development at jDays in Gothenburg

  - by JavaCecilia

  Last weekend, I took the train from Stockholm to Gothenburg to attend and present at the new Java developer conference jDays. It was professionally arranged in the Swedish exhibition hall close to the amusement park Liseberg and we got a great deal out of the top-level presenters and hallway discussions. Understanding and Improving Your Java Process Our main purpose was to spread information on JVM and our monitoring tools for Java processes, so I held a crash course in the most important terms and concepts if you want to affect the performance of your Java process. From the beginning - the JVM specification to interpretation of heap usage graphs. For correct analysis, you also need to understand something about process memory - you need space for the Java heap (-Xms for initial size and -Xmx for max heap size), but the process memory also contain the thread stacks (to a size of -Xss), JVM internal data structures used for keeping track of Java objects on the heap, method compilation/optimization, native libraries, etc. If you get long pause times, make sure to monitor your application, see the allocation rate and frequency of pause times.My colleague Klara Ward then held a presentation on the Java Mission Control product, the profiling and diagnostics tools suite for HotSpot, coming soon. The room was packed and very appreciated, Klara demonstrated four different scenarios, e.g. how to diagnose and fix latencies due to lock contention for logging.My German colleague, OpenJDK ambassador Dalibor Topic travelled to Sweden to do the second keynote on "Make the Future Java". He let us in on the coming features and roadmaps of Java, now delivering major versions on a two-year schedule (Java 7 2011, Java 8 2013, etc). Also letting us in on where to download early versions of 8, to report problems early on. Software Development in teams Being a scout leader, I'm drilled in different team building and workshop techniques, creating strong groups - of course, I had to attend Henrik Berglund's session on building successful teams. He spoke about the importance of clear goals, autonomy and agreed processes. Thomas Sundberg ended the conference by doing live remote pair programming with Alex in Rumania and a concrete tips for people wanting to try it out (for local collaboration, remember to wash and change clothes). Memory Master Keynote The conference keynote was delivered by the Swedish memory master Mattias Ribbing, showing off by remembering the order of a deck of cards he'd seen once. He made it interactive by forcing the audience to learn a memory mastering technique of remembering ten ordered things by heart, asking us to shout out the order backwards and we made it! I desperately need this - bought the book, will get back on the subject. Continuous Delivery The most impressive presenter was Axel Fontaine on Continuous Delivery. Very well prepared slides with key images of his message and moved about the stage like a rock star. The topic is of course highly interesting, how to create an infrastructure enabling immediate feedback to developers and ability to release your product several times per day. Tomek Kaczanowski delivered a funny and useful presentation on good and bad tests, providing comic relief with poorly written tests and the useful rules of thumb how to rewrite them. To conclude, we had a great time and hope to see you at jDays next year :)

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