---
title: WWDC2004 Session 614
framework: wwdc
role: article
path: wwdc/wwdc2004-614
---

# WWDC2004 Session 614

## Transcript

Kind: captions Language: en I'll sue so good a morning afternoon evening depending on where you are in the world welcome to session 614 deploying java applications for mac OS 10 as introduced on Carlos ooh i'm one of the session engineers or i'm starting some one of the java runtime engineers and I'll be your tour guide this afternoon alright so what are we going to talk about today well we're going to talk about the various ways that you can deploy Java on Mac OS 10 mostly will be talking about client-side java will touch briefly on server side but that's actually in a different session we'll talk about tools on how you can make that deployment easier development tools and you might think that's a little bit weird to be talking about that in a deployment session but it's not we feel that your job as an application developer is to write applications it's your job to make the code that people will run it's our job to make it as easy as possible for you to get that code to your customers that isn't anything that you should have to really worry about you shouldn't have to work on it we're going to try to make that a little bit easier for you we'll talk about which one of those deployment options the best one for your customers its best way for you to get your application to them and finally we'll take a little bit of a look into the future and see what's coming in the year ahead with Java one point five point zero I think it might have actually been renamed five-point oh but we'll have to see so this is the graphical overview where Apple we have to have a nice UI on everything one thing when you look at this you have to realize is that the job of VM is underneath it all and this actually is a little bit different from other platforms on other platform the JDK isn't always there you have to download it users have to find it or you have to bundle it with your own application that users end up with 15 copies of the runtime in their system ja apple provides the Java VM in the JDK as a system framework right it means you don't have to worry about it every mac OS 10 installation has a Java VM and a JD if the user has access to software update and is used it they have the most recent version this is a big relief on your part your applications can be small and they can depend on the jdk being there so what kind of applications can you have we start and the most obvious one the one that most users hit most users use and see our app works applets running in WebKit and applets running in Safari Safari of course is using app kit but Steve Jobs love Safari so it gets its own little box web start the next step it's a little bit beyond applets it's basically an application that's deployed as over the network all right it gives you a lot of the benefits being an applet and it gives you a lot of the benefits of being an application the next step past said of course is to be a bundled application I'm sure you've all seen them there are tons of them out there they look and they act pretty much like every other Mac os10 application the end user doesn't know any difference and yet they're in Java it's very nice all the way on the end it's the poster child for things we don't want to think about shell scripts and raw jars and class files you can run shell scripts all of these can be run from the finder all of these can be run from the terminal but you can't do anything with them really right they require either a remarkable amount of technical savvy on the part of the developer or I'm sorry on the part of the customer or they require that you need no configuration at all so generally we don't like that right we like things to look nice to behave nice for the end user so let's start by talking about applets applets on Mac OS 10 it's based on our plugin is basically based on sun's java plug-in like a lot of other things in java we try to maintain compatibility by frankly using as much of their code as we can get right 142 is available on any webkit-based application Safari uses it but if you happen to use WebKit then you can also use applets and we'll see a really interesting demo of that later our applets are cross-platform compatible anything that you can do in an applet on another platform you should be able to do on ours you know you shouldn't need to treat the Mac differently or if you're already on the Mac you shouldn't have to treat Windows any differently the bonus of that is that there's no download or installation it's totally clean right from the users point of view all they need is a browser they don't need anything else they don't need to download anything they don't need to install anything it's all there for you this isn't to say that applix don't have any mac OS 10 specific technology because they do they do take advantage of mac OS 10 technology when they can write they use the keychain to store certificates HTTP QPS client certificates and when you sign a jar all right they also take advantage of WebKit to do cookie management so a lot of this stuff is in there and it's done a little bit nicer we just released 14 to update 1 Developer Preview three and if you haven't tried it we would really appreciate it if you would try it and give us feedback we've greatly improved stability and performance and correctness and a large variety of applet in the update proxy support is greatly improved and by greatly improved I mean it works now all right and for those of you who are really picky you have your applets well organized into your site and bordered by things we now have support for dynamic resizing of applet that means when you set with equal to a percentage and you resize your page the applet will now resize your page won't suddenly look like a total disaster as soon as the developer decide where the user tries to resize the Safari window and new from last year life connect live Connect is the ability for Java and JavaScript to talk to each other this opens up a lot of things there were a lot of legacy sites that didn't work with Safari before that do now but it is a legacy technology and that means that there are a couple of limitations we don't talk to anything except for Java there's no talking between javascript and flash for instance there's no creation of new java objects in JavaScript on the other hand it means that because it's built in WebKit again any WebKit application should be able to use should be able to use live connect once again I have to plug our update it improves things dramatically in all areas so to talk about a little bit more about applet deployment and how you can use the dev tools to your best advantage Scott Co batch all right all right let's start off in demo one please and over here i'm running tiger and what we want to show you here is basically what the applets are going to look like on tiger now you're going to say well that's not very exciting you know they're just applets but what we want to show you is the improvements I'm actually mostly that the teaching folks have made but they're actually enhancements that you're in users are going to appreciate so here's my first example of an athlete pretty boring applet actually but as you can see you know it's Carl mentioned we work across platform all these are now the color of the text and the progress bar and all those things are all things that you sat in the HTML we pick those up they just work so here I have a security dialogue because I've signed this applet all right i'm sorry i find the jar in this applet and as you can see it's a self-signed applet now I did this myself you know through it together using a key tool and you know the alert is telling us that the company is not trusted well Apple wrote it it sounds like I'm making fun of our own company that you shouldn't trust us but the truth is that I'm over an applet pretending that Apple issued it well you know it's important that that's why we have this here is that so you can verify the contents of the certificate so your end users you know contrast of what you're deploying is actually from who who it says it's from all right let's close that and I'm going to always trust this applet as you can see when I did that my certificate just showed up here in the keychain I'm going to look at that certificate and we see up yep it's a self-signed certificate valid I can double click on it click on it and get a lot more useful information you're going to see an expansion of us using more of the public key infrastructure that's available on tiger and in the future but for right now you know this gives you an idea of what we support where we're and we're going to be taking this further let's also go back here and what's nice about this is that now the user can you know not only take a look at it they can delete the keep the certificate from the key chain as well if that's what they need to do and I'll click safari and launch it again and now even though I said all these we have to we have to trust it we have to try to trust it again all right and just for comparison sake i'm going to show you install anywhere and they also signed their installer they have a web-based web-based installer it was issued by thought day or thought rather and i'm going to always trust that and you'll see the difference over here as well expire but that's alright you know it's just put in 1 and 1 dot 5 this will be less of an issue because you'll be able to get around these problems but you know just what is the important thing here showing you what certificates going to look like in the keychain and leave now there's not much information there ok i thought was going to be able to show you a certificate chain but no alright so that's basically what you're looking at for applets as far as Tiger goes and Panther it's not a whole lot different but you know you were making it easier to manage certificates for the end user ok let's go to slide please all right now you've seen how easy it is for a sign applet to run on mac OS 10 how many out how many of you actually have had to write a signed applet at some point all right if you want to do an Xcode would you agree that it's somewhat of a pain I mean you have to get a shell script set up you have to do a shell script phase you have to get everything all set up and do mostly work outside of Xcode what would it be nice if I could have a basic Xcode I'm sorry I basic HTML file just created for me I could sign it as part of my build phase and build and deployment process and just do everything in Xcode once don't have to go back jump out the terminal you know set anything up for myself other than what Xcode will do for me well today we want to introduce a new project template we've been talking about an a lot this week and what we're going to introduce here is a new signed applet it's based on the ant application template and that it you know I started with that and built this bill out that build up the template we're going to take advantage of ant to do a lot of the automation for us we're going to start with an applet you know that you that we've got boilerplate code in here we're going to start with the applicants you've written and we also have a Java keystore that's got your certificate in it already and when we're all done we're going to produce final each tml sign jar and we're going to put it in a place where we can test it and try it out and we've also got provisions for deploying that to a final location won't actually show that but you'll be able to see how it's done in the in the build script I mention an we've talked about this a little bit aunt 161 is now part of the core java tools if you install the Developer Preview 3 developer tools you will get aunt 161 that version of aunt does work and it will run J unit and all external tools it's been installed a developer Java aunt completely separate from the j2ee tools that are out that we install it as an optional tool this is not meant to be a session to teach you how to learn to use aunt go to see a patch and apache org give you all the information you need on external tools tasks how to link all the stuff together what I am going to spend some time showing you is the important parts when you want to write your own ant script that links into Xcode the important parts that you need to to make sure that you do have so there'll everything work right all right so in this particular script i'm using aunt 4 in some of its deployment features aunt will do the jar you know the jar step for me but the it's got a nice feature called sign jar and it basically wraps up the the jar signer command line item pretty well what the signs are tap and we're also going to use it for its deployment features I've written into the script and ftp task and i'll be showing you how to use that and what extra what extra things you need to get that to work and as i said as i mentioned here it needs to third party jars we've got links on where you can get those very easy to do this yourself all right let's go to demo number two machine number two gritty oh wow okay okay here I've got Xcode and just to show you that I'm not making this up i'm going to show you that we've got an aunt based signed applet ready to go here in the assistant but i've already got one ready to go for you because I got the properties also set up so you can actually see this so here we can see that i made a new project called aunt signed applet and it filled in the archives so that i can filled in the archive item for me the code is the same as a project name and that's pretty boilerplate but the interesting thing here is the build.xml a file let's see here got a lot of setup you know you can look through this will have this available a sample code available for you by the end of the by the end of the week here's murdered i want to look here here's the jar step that puts everything together down here is the sign jar cask that's the interesting part for what I'm talking about right now we're going to we're going to sign the jar file that we created in a previous step and the way I've written it is that it uses my username as the alias into the default key store that's creative when you when you work with key tool so what you'll need to do before you do this is you'll need to make a key tool making you just to get up and running out of the box you'll need to do you need to do a one-time setup of setting up a key store for yourself but then you can change this in and do what ever you know use whatever certificate use to sign your jar files normally and it's going to dump it out and defined out jar file which puts it into the disc the disc folder and one step here that's interesting I have an install target actually before I show you this I want to I want to back up here and show you some of these targets that we've set up so we have a target name and install and a target name jar and a compiled target when you're integrating aunt with Xcode you need at least three targets in your aunt in your build that XML file to get it all to work together so you need a clean task and we have that down here which basically blows away my intermediate build in the distribution direct directories I also need a compile phase which is where I indicate you know what am I going to do to what do I need to build with this with this task and you also need for job you need a jar face and the jar phases is going to take care of well really you can have it do what you want but ultimately it should be doing a jar at some point along the way oh and the last one is the install phase if you go out to terminal and you do Xcode build install it will run this install target oh this install target not this one over this one and what i've done here is i've set up an ftp ftp task to get that to run you'll need to go to those locations that you see up there and the girls you'll need a 22 supporting jars to get the ftp to work and you know instead of writing it down just want to let you know that so you'll have to do this other piece of setup because we can't distribute these and I'll just build it here actually remember that so there we go we did a compile and we did a jar phase which should find my find my jar and did everything for me all at once and I'm going to do a run in the run task is going to open up safari because I use user been open and there we go I have my signed applet ready to go there's my security dialogue and just to prove to you that at the signing actually work I probably should have had it print out my username just for the heck of it but there you go so here we have a task for built for a I'm sorry an ant base template for building assigned applet you'll be able to get this is sample code and I believe that it's going to do it let's take it back to Carl thank you so that was a brief foray into the light vegetarian world of applets but now let's talk about something a little bit more meeting let's talk about java web start so java web start is basically a web-based deployment technique for applications and applets applets run inside of a browser or any WebKit app but they're running inside of another process sometimes it is and what you want right there inside of a sandbox even with the signing there's some limits and they can't they don't really look like real applications to the user so what java web start does is the user can go to a web page click on a link and that will essentially download and run an application onto their desktop you can it picks up where applets left off there are kind of halfway between applets and applications the second time you run it it will actually attempt to build a bundled application so to the user the second time they run it now they have this nice little application on their desktop or wherever that looks just like a regular application okay the nice thing about this is that it's still updates it still knows that it's a web start application so it will still go back out onto the web and check have I been updated do I need to download any new files this is perfect from an enterprise deployment scenario right you have users who can download these apps and they look like real apps so they feel comfortable with them they each run in a separate vm so if something freaks out Safari you don't lose everything and they're still talking across the network this means you can be sure that all of your users are running the same version of your application you don't have to run around badgering your users to upgrade to make sure that they're not talking to the database with the you know the version that corrupted it right the next time they run the app it'll come it'll grab the next version of the of the jars it's beautiful what's even better about java web start is that even though its platform neutral you can run this on any platform you want it's not totally platform ignorant you can you can customize what actually gets downloaded and run based on what operating system you are and what vm actually that it will be eventually run on and we'll talk a little bit more about that later before we talk about all this stuff in depth I just want to give you a quick update it's actually pretty sure right once again java web start we try to base it as much as possible on sons code it's just so we have to do less work because we're lazy engineers and 142 is available it's both available on Panther and Tiger same as applets it's all good and once again I'm going to have to kind of preach about the update one we'd love you to try it it should make everything better really there's a couple more updates they're basically marrying what son has done so let's talk a little bit more in depth about java web start okay some things that you can do you can use jni libraries that means that you can have your native code integration you can do things that are only possible on certain platforms and that means that you can customize your Java Web Store app for mac OS 10 or windows or whatever other platform you like the ability to create desktop shortcut applications in the bundled applications I talked about earlier looks great to an end user it makes them more comfortable with what's happening they don't have to keep going to a web page you know they only do it one and the next time it's all good we use your icons for the dock and the desktop will actually look in the jnlp file the file that you use to determine what actually happens what's downloaded and how its run and we can present it that way we don't have the generic Java icon from the users point of view it's starting to look more and more like an application and you can download custom jars just for Mac OS 10 and we'll take a quick look at how so the web star jnlp file this is the file that you use to basically say what's going to run when I click on this what's going to come down what's going to get downloaded what's actually going to run on the customers computer so the general p file specifies a couple of things it specifies resources resources can be jars for code or images or whatever you want or they can ramp native lips right this is what I was talking about earlier the neat thing about these resources is that there you can actually download them based on what architecture or what operating system that you're running on you can also make them lazy and this is really useful if you have a huge application you for right of reason you've decided to build your application this giant monolithic thing with a lot of different areas and particular users only use little bits at a time you can specify all of the ancillary jars to be lazy and they won't get downloads they won't eat bandwidth unless the user actually tries to use that functionality you can have multiple job of versions if you find that your application behaves differently on 13 verses 14 verses 15 you can actually in the journal p file you can specify particular settings you can say some resources are only downloaded on this version of the vm and a different resources downloaded on a different version of the vm you can specify heap settings if you find under one version the vm you need more or less memory than the other you can even have an installer if you have to install native libraries you can have something that the first time they run the web start app you'll run off and this another application will be run just that one time and you can finally have their their equivalent of shared libraries or whatever which is the component extensions if you have a bunch of jars and a lot of setup that shared between multiple applications you can pull that out into a separate jane LP file that's referenced and then you can do just less maintenance work you don't have to keep changing jam LP files across 20 different applications so to do another web start deployment demo back to Scott thank you again Carl okay let's say with demo to this time and right here i'm going to show you java web start and you know if you run web start on other platforms you know this should look pretty familiar to you don't get used to it will be talking about that in a little bit but the first thing i want to show you is actually a game that was deployed with java web start and if you've ever looked at this it's called puzzle pirates and what's interesting about it is that puzzle pirates is a believe over a 20 megabyte download and we're going to get it started up here and I hope I don't scare anybody in the back because it's changing the resolution because puzzle pirates runs in full screen mode and what we're showing off here is that full screen mode finally works works beautifully in DP three and you just show you what you can do with this have my own little pirate yes I taps with this application quite frequently and it's a massively multiplayer online game so I can wander over here and we can scroll into a different part of the village and we can head over here and see what's going on full screen mode very smooth it's you know a lot of good works gone on in improving the graphics of the graphics rendering in full screen and regular mode you know so I'm not going to spend too much time here you don't want to watch me play any games so I'll quit that and we take care of zipping back to what we had before now this is a more traditional application it's called oxygen which is an XML editor and again this thing is about 17 or 18 megabytes and here we got and I've already downloaded once but as you can see sorry in the cache it's ready to go actually a little story about this is that the first time I ran this had said Mac os10 is fully integrated with it with oxygen so I thought it was this I was hoping that would come up for you it couldn't control which one yeah hello anyway so what's interesting about this and the reason I pulled it out is that if you look at this this is a application that would look look pretty good looks right at home on Mac OS 10 I mean me they might want to have a you know look at the match the session on building great applications for the toolbar but overall it's pretty good and because it was it was fine for full permissions I can go on the desktop and I can just open a file here and I've got a great xml editor i've actually played with this is a very nice application this is a just to build out xml that i was playing with in doing some my development of the template you know cut copy paste work I mean this is a full application this is a great a great way to get this down to an end user and that's all I need to show here so the point of this demo know the whole reason I show this to you is that if you're writing a java application this is a great way to get it to an end user whether your in-house this came across the internet publicly available but you can easily make a full application that you can deploy to your end users in your organization if that's what you need to do okay so now for the demo so let's go through some code how many here have tried to write a java web start application we're using web start right would you agree it's a pain in the neck in general okay if you want to you want to start with usually what I ended up doing what I need to test this I have to go steal another jnlp file copy and yank out all the parts that I don't need fix all the bugs that occur from doing the copy in the pace and you know I got to deploy it somewhere because it's you you webstart will try to download it from someplace doesn't really have a good notion of running locally but so in order to you know make life easier for you as a developer we came up with this an Xcode template that is built on ant and let me check one thing sorry ok has it slides for one second please running thing than this week seems to be wouldn't it be great so wouldn't it be great if I could get a basic GOP file created for me it's a lot of it's a drudgery tasks you don't want to be bothering with it every time you need to do some work what would be great if I could deploy everything in my server to test it so I can do them all of my testing and you know where Apple we want you to use xcode wouldn't be great if we can just do this all on xcode well we've created another new project template which I was just getting ready to show you but I got ahead of myself the java web start application template the product much like the last the template i gave you is an HTML file a jnlp in a jar and we're going to deploy it's where you need it to be deployed for for your testing or your final development sort of the boilerplate set up we'll just put it in your home directory in your site that's that's probably going to be fine for your development all right now let's go back to mo to ok and once again just to show you that we're not pretending here actually I think you probably saw this before we have the web start application template they're ready to go I'm going to open up 1 i've already made for you and we've made a an HTML file that's going to download the jnlp for you we've got a basic jnlp where most of the information filled in for you you want to put a better title it'll put your organization name using the macro fill in at Xcode users for templates the HTML file that where it came from and you know all the standard things that you see in the jnlp file and one thing I want to call out here is that I've set this up to use 1 dot 4 plus which means we're going to use any vm at least 14 or better which means that if you know once we get 15 need to be up and running it'll pick 15 in this case Carl we'll talk about that in a little bit all right click on the build.xml actually is not a whole lot different than the sign Apple accomplice I'm not going to spend a whole lot of time on it but here we have the clean and the install phase a couple of gotchas I found while developing this so that you need to chmod all the everything that you actually deploy because if you don't it's going to set it up as read-only on for the user that put it there and nobody able to download it this depends flag is actually a very cool feature of the ftp test it'll look at what's on the server and it'll say oh that's newer than what I've got already or newer are the same so I won't upload anything or you built something newer I need to put that up on the server so it's very a very useful way to make sure you've only got what's the latest stuff on you on your server for testing and I'm going to run it because every template should be able to run and do something up what happened there ok seems to be a running theme today it's going to build it sign it and put it in the fight and I've set up my run phase to open it up with web start okay you know what let's do this so today is not a good day for demos around here what was supposed to happen is that the Apple would start up the application would start up in web start it would be signed so would ask for full permission and it was going to open up www com this will be cleaned up and you will be able to use it before too long thank you very much and let's go back to Carl thanks so I hope you missed me I'm back and I say hi these are applications so this is a really short slide because really applications have been changed that much use the bundler jar bundler and you make a little application is sort of the traditional way to deploy your application developers are sort of used to it and users are sort of used to it to it it's the thing to do the only thing I'm going to do is take a deep reef foray into the Java dictionary of the info.plist because people have asked so the Java dictionary is a dictionary that's embedded in the info.plist of your bundled application and what it is is basically a whole stack of information that we pass to the applicant to the running java app to the started java app you remain class that's sort of self-explanatory and obviously it's mandatory you have the Java VM version you have to specify which version of the vm but we prefer that you not be too specific about it Scott talked about it very briefly when he said 1.4 plus so what we'd like to do is we'd like to get people away from saying all I'm going to run on Java version 1.4 point2 because one point four point two may not be there later if we come out with say there's a monster security breach or a massive you know missing chunk of functionality or whatever and we put out one point four point three one point four point two won't be there anymore and your app will stop working right so we would much prefer that you use one point four star which means any one point for vm any minor version or 1.4 plus which means i'd like to run on any vm that least one point for these are good things try to do that this is the same thing that java web start uses in the jnlp file to specify which vm version to use ok specific Java properties these are the same properties that you access with system get and set properties so on and so forth arguments these are arguments passed directly the main you don't usually want to use these but it can be useful if you're wrapping somebody else's command line app if you have a Java program that you kind of that expects to have all this stuff passed to it as arguments you can pass them here the class path path the files obviously this is probably going to include at least one file that would be the one with your main class and vm options so there is a bit of a difference if you notice that the vm two options are all the options that you can have java web start doesn't have that option you can specify multiple vm but you can really only change the heat settings so the applications a little bit more flexible in that regard so i'm not going to go in depth about building applications that won't force Scott to come back up here and the reason is because there's an entire session on this or there was an entire session on this xcode for java development this morning you should be able to see it later at some point either on a DC TV or whatever we use if you have access to last year's DVDs there's also ship session 608 from back then so now we're on to the the sort of the part that we don't talk about the java deployment that will not be named and that's shell scripts and j2ee shell scripts you only if you really have to I mean if you're really really sure of who your deployment audience is go ahead you shell scripts it'll be ok but in a general sense we would prefer that you not use shell scripts to launch your app there are a couple reasons obviously they don't look familiar to users there aren't something that you know most users you can't tell them Oh to run my java app go to terminal and do this or that or this or when you double-click my java app this giant terminal window is going to open and do all this stuff they're not going to be happy with that but there's actually another reason the reason it's because there's no launch architecture surrounding him right you notice in java web start and in the application bundled application case you can give us hints as to what version of the vm you'd like to use when you run any terminal when you run with the shell script there's no way to do that unless you do it manually you either say java blah blah blah and we pick whatever we think is the most current version or you have to mark a full path use the system library frameworks java vm for emmerich versions blah blah blah you pick like 131 you know slash bin slash java and if that ever goes away your application just completely stops working even minor changes to that path if we move the framework or rename something your application stops working so try to avoid that if you can so j boston calm cat j2ee deployment isn't actually you know it's not bad it's just not what we're talking about today and there's a whole session on it so I wouldn't want to steal somebody else's Thunder Friday 9am how to deploy j-bot on jboss on Mac OS 10 server this is only available on server so unfortunately you can't count on it being in the client version so before we talk about which of these deployment options you might want to use let's talk about a couple of deployment gotchas things that aren't always readily apparent particularly if you're coming from another platform okay so where is Java home java home is library java home and you know the lib directory your sorcerer are all the stuff do you expect to be in Java home the in directory it's all there and it's sibling to the appropriate location so the obvious question is well where do extensions go extensions go into library Java extensions or the user's home directory library job expansions there is a something there's a little bit of a catch here which is that while Java home is symlink to the appropriate version so when you run Java one point four point two you get the job at one point four point two home all of the library java extensions are used by this all the different versions of the vm if you drop aunt jar and the library java extensions and jar is going to be available no matter what version of the vm you're running under okay so that's a little bit something to keeping track of its confused some people before one thing to keep in mind and I've talked about how web start and Apple bundled applications can try to pick which version of the vm applets don't have that luxury applets launch in whatever version of the vm their container has decided to use right so microsoft IE internet explorer uses 131 applets launch their use 131 they don't have a choice WebKit uses 142 applets lunched in their use 142 they don't have a choice so applets are limited not necessarily by the technology but with the knowledge that your deployment may have to be the lowest common denominator of what you think your users will be using so I'm going to harp again sorry about this but I've been asked to harp on it so I will don't use one point four point one and one point four point two is your jvm version when you write web start apps when you write bundled apps right it is Apple's policy that minor version updates will out right over right older previous older minor updates one point four point three if one if and when it comes out depending will totally crush one point for point to it will smoosh it out of existence okay so don't say one point for point to say one point four star or 1.4 plus please I'm begging you no really look thanks all right so at this point we've gone over all these options applets signed applets java web start bundled applications and you got to be wondering well why which one of these should i be using so applet applets are the lightest weight all right they have nice things they have built an SSL support they don't require downloads or install but they're the kind of limit is you can't choose the vm version and they're floating in somebody else's process and they're in a complete sandbox if all you need is to walk outside the sandbox pick a signed applet assigned out but you can get local disk you can get some restricted property access the next step up if you need native code but you still want that ability to talk over the network the ability to get frequent updates or you need control over the vm which vm you're using which resources get downloaded think about java web start you still get the ability to to to be dynamic in terms of what's running but you get a little bit more control over what's actually going to happen finally you have bundled applications this is if your apps really huge if you want to distribute it on a CD some way or you don't have the network bandwidth you know you you want to distribute it and you want to be done with it then you use a bundled application or if you're bundling an existing an existing tool that needs arguments Java VM options that are very specific all of those things have to be bundled apps okay let's look into the future we've talked about what's happened and let's talk about what's going to happen so we have the 1.5 point 0 Developer Preview one and we just released did it runs on tiger so sadly since I've just been talking about it there's no website or applic support in the developer preview it's an enterprise preview it will be coming and in the end result you have all the web start applet deployment goodness that you've come to love and expect from Apple okay so let's talk a little bit about what will be coming what's new well the applet plug-in and website have been combined think they just decided they're so similar why have them be separate there's a number of enterprise enhancements you can set a security model across an organization you can have deployment property specified in a URL and you can mark properties is either / idle or not over I dab'll by specific deployment HTTPS client authentication rears its wonderful head and then a set of things which are really interesting to me personally there's pack 200 compression for jars it's a new jar compression and it has the capability of hang your arse up to eight times smaller than they are compressed now this is great from a user's point of view it means when they hit your web page and they download an applet or when they click on the web start length and they start downloading your app it might it launches just like that it's much nicer and it starts bringing things like web start into the realm of being real desktop app replacement the next thing the fact that web start desktop apps can now have document types you can actually bind you can say I claim this particular document doc jln STW whatever you know your own personal little initials but now you can associate when they use your double clicks on that document you're bundled app is going to launch and that's awesome and finally an import facility one more step in the ability to make web start apps more and more like real desktop apps it with an import facility you can pre-populate the cash it's basically like an installer that sets a web startup app as if the user had already downloaded all the jars and built the app so you get all the niceness without that initial niggling startup you know the first couple times that the user has to click on things they can treat it like it was always a desktop application that just knows how to update itself all right part deux so let's go in a little bit more depth about what's changed so in particular the applet plug-in and Web Start have merged that means that they share a cash this is good it means that you're not likely that you're more likely to have whatever it is you're trying to run in cash it simplifies things considerably this means there's no more web start application there's a couple of new applications that take it place there's a plug-in settings and a cash viewer the rest of that functionality I think they rightly decided was to be pushed off into the browser so what's already there these are new to java 1.5 but frankly they're not new to the mac as always we've been on the leading edge so we've had these for a while java 1.5 has integration with keychain but even on one forum for one point four point two scott download it for you and we have auto detection of all installed vm this is a lot more important on platforms that don't provide the vm as a supported system framework which we do so we've talked about Java 1.5 in the future and actually we were going to end the session at this point but they announced tiger earlier this week and I was thinking about dashboard and I thought wow that's pretty cool i can write little widget but then I thought you know what I really hate JavaScript I don't like writing things in JavaScript yeah but if it's a real and then I went to the dashboard gadget session and they said you know what this is a real webview it's not just a JavaScript engine you know putting up custom graphics and then I thought way that could be really interesting so if I could switch to demo one please all right so and I thought to myself hey that's kind of funky look what I can do I can run java applet inside of dashboard so this is a completely different way for you to deploy your java applications you can write little desktop widgets for people to use at the touch of a finger tip and we'll leave you with that that's deploying java application on Mac OS 10 thank you and have a good evening [Applause] so we're going to do Q&A but first I get to do this whole thing look it's the reference library we have a ton of documentation some of it's ours some of it is son it's all very exciting it's gripping text you should read it it will enrich your life now if you have any complaints you can complain to him so if you have people to talk to you have questions comments feature requests bugs anything talk to allen samuels he's our java evangelist his email is up there Rob Fraser is our marketing person if you feel that we're not I don't know we're not marketing Java talk to Bob not actually sure and the java developer mailing list java developer mainland lease is great it's a place where people of all kinds of occupations and creeds can come together and well really flame each other about java know it's good it talk you know it talks about things and people hash out problems and they you know where a lot of the web i'm sorry a lot of the java engineers are on the java dev list so actually if you have issues you've questions how do i do this thing on the mac how do I make this app look better you know why does this behave differently on the max and other platforms join java dev and ask and somebody from the java team will try to answer your question but of course if you really think it's a problem you should file a bug always file bugs bugs are our friends because they keep us in business I mean that's my job I fix bugs