java-programmer >>Execute jar in program code

Execute jar in program code

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- 1
  - Single Threaded EnvironmentHi,
    
    I know this might not be the best place to ask this but.. umm I know
    Java is a multithreaded environment. what do you call a single threaded
    environment where there are no multiple threads or scheduler? Please
    tell me because I can't seem to recall the term :( Is it just "single
    threaded environment"? Or is the term something else? Thanks!
    
    Rick
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  - OMLETv4: SPAM SPAM SPAM
    --
    Daniel A. Morgan
    University of Washington
    email***@***.com
    (replace 'x' with 'u' to respond)
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  - OutOfMemory on Sun Java 1.4.2 on LinuxHi all,
    My application (on JBoss) is experiencing strange problem on one of our
    environment - on Linux on Itanium 2 - Sun Java 1.4.2_07 and 64 bit.
    On all other platforms (windows, linux, 32 bit) is ok.
    After 2-3 http requests the OutOfMemory exception is thrown.
    Java is started with -Xmx1024M. In fact the bahaviour is exactly the
    same as -Xmx512M.
    'uname -a' shows unlimited resources for memory.
    There is plenty of free memory in the system (main and swap) - for
    example I can run 3 such java processes at the same time - but each is
    reporting out of memory after few requests as it is for one java spawned.
    'top' shows that java eats ~400M when the OutOfMemory is thrown.
    
    Where to look, what to check?
    taab
- 8
  - splitting up huge (1 GB) xml documentsDear all,
    
    I am facing the problem that have to handle XML documents of approx. 1
    GB. Do not ask me which sane architecture allows the creation of such
    files - I have no control over the creation and have to live with it.
    
    I need to split this massive document up into smaller chunks of valid
    XML:
    The structure of the XML is quite easy:
    
    <businessHeader>Bla, bla -> only about 10 tags</businessHeader>
    
    <businessInformation>info goes here</businessInformations>
    
    <businessInformation>info goes here</businessInformations>
    <businessFoolter>about 10 tags footer</businessFooter>
    
    My current approach is to use SAX to parse the document and write the
    businessInformation into different files. Before that the header gets
    inserted into each file and after that the footer.
    
    This obviously consumes quite a lot of time since the entire file is
    parsed sequentially.
    
    Can you think about a way of how to speed this process up ? I was
    thinking of jumping randomly into the <businessInformation>-section of
    the file (Random Access File) and then start parsing from there on with
    SAX (potentially in parallell by using threads) but I am not sure if
    this works.
    
    Any hint is appreciated.
    
    Cheers
    
    Torsten
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  - Java and MySql program example ?I am trying to learn Java and need an example program with MySql
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    I am sure there are many who have made an invoice program in Java with
    MySql database. The program must have routines that are similar to
    those an invoice program has: customers, orders, products. Screens
    like orders head and orderlines.
    Can you please send me a copy of the source files for such a program
    or a different program?
- 10
  - Where to find the Java source files?Hi,
    
    I remember Java source files are installed somewhere and I can take a
    look at them. For example, right now I hope to look at JFrame's file,
    JFrame.java. I forgot where to it is installed. Could you give me a hint?
    
    Thank you.
- 10
  - Two questions about jars1) I need to support installing a Java application from CD on both Windows
    AND on the Mac. I have figured out how autorun works on Windows. Is the
    method for doing this the same on the Mac as it is for Windows? I am
    thinking that what I'd do is create an install "program" (like the Setup
    program created by Install Shield on Windows), but make it as an executible
    jar file so that the Java VM on either can handle the install process. That
    way, a single CD should be able to accomodate both the Mac and Windows.
    
    2) I have found the process of making executible jar files a little
    problematic, and the documentation from Sun with the SDK a little lacking in
    examples: and the documentation with eclipse and Netbeans IDE is a bit of a
    maze (I'd have thought that both would make it easy to create executible
    jars, but I haven't found the relevant parts of their documentation yet, so
    I am still struggling with hat from Sun). I understand that to make a jar
    executible, I need to provide a manifest file, but I have yet to succeed in
    adding one. Can anyone point me to a simple example of making an executible
    jar containing a Swing application, or provide me with one (if that is
    simple enough)? (And/or provide a map pointing out the relevant parts of
    the documentation I have acquired) I need this jar to be self contained, so
    I do not need to worry about what version of the JRE the client machine has.
    
    I guess I ought to add a third question about whether or not either eclipse
    or netbean supports making a distribution as an executible jar file that
    will install the application on the client machine and create any necessary
    directories and icon on the desktop? I have found, though, a couple tools
    that should be able to do this, but I haven't been able to test them because
    I got stuck on the question of creating executible jar files.
    
    I am certain I can figure this out on my own, but the big problem is I am
    facing significant time pressure, so I ask for aide to help me get this
    figured out faster.
    
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  - Reference sitesDoes anyone have a list of reference websites that are running FreeBSD
    and Java?
    
    Or does anyone know of any high volume sites using FreeBSD and Java?
    
    Thanks,
    Todd
    
    _______________________________________________
    email***@***.com mailing list
    http://lists.freebsd.org/mailman/listinfo/freebsd-java
    To unsubscribe, send any mail to "email***@***.com"
- 11
  - Cigarette Girl ...Cigarette Girl
    
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- 11
  - Web Application Works on Windows, Not on Linux (Needs a file)I've been using a web application to find part numbers and info for an
    antique car I've been working on for a while. I used to go to the
    manufacturer's website, log in ($20 a year fee, otherwise I'd link to it),
    click on the link, and the program would run just fine under Linux.
    Recently I upgraded my system (from Ubuntu Edgy to Ubuntu Feisty) and now
    this app will run in Firefox on Windows XP but won't run on Linux. Now I
    get an error that it can't find the file hpwin32 in the java.library.path.
    (The full stack trace is below.)
    
    I searched my hard drives on the WinXP system and there's no trace of this
    file, so I'm guessing it's a file on their end that isn't loading. This
    worked fine when I was using Java 1.4.2 but won't work now, with Java 6
    installed.
    
    Any ideas on what I can do to make this work again? What other info would I
    need to provide that might help track this problem down? (The supplier
    doesn't officially support Linux, so I can't get help from them.)
    
    Hal
    --------------Stack Trace from Error Message--------------
    java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at
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    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.sun.javaws.Launcher.executeApplication(Launcher.java:1205)
    at com.sun.javaws.Launcher.executeMainClass(Launcher.java:1151)
    at com.sun.javaws.Launcher.doLaunchApp(Launcher.java:998)
    at com.sun.javaws.Launcher.run(Launcher.java:105)
    at java.lang.Thread.run(Thread.java:619)
    Caused by: java.lang.UnsatisfiedLinkError: no hpwin32 in java.library.path
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1682)
    at java.lang.Runtime.loadLibrary0(Runtime.java:823)
    at java.lang.System.loadLibrary(System.java:1030)
    at
    com.hp.tis.ewo.common.win32.Hpwin32DllLoader.loadLibrary(Hpwin32DllLoader.java:63)
    at com.hp.tis.ewo.common.win32.Environment.<clinit>(Environment.java:257)
    at com.hp.tis.ewo.setup.ContextController.<init>(ContextController.java:54)
    at
    com.hp.tis.ewo.setup.cookie.CookieEngine.getWorkshopID(CookieEngine.java:181)
    at
    com.hp.tis.ewo.clienttools.trigger.CookieTrigger.execute(CookieTrigger.java:89)
    at com.hp.tis.ewo.clienttools.trigger.TriggerLoop.run(TriggerLoop.java:82)
    at
    com.hp.tis.ewo.clienttools.connectivity.http.EwaHttpUrlConnection.getBaseHttpConnection(EwaHttpUrlConnection.java:312)
    at
    com.hp.tis.ewo.clienttools.connectivity.http.EwaHttpUrlConnection.<init>(EwaHttpUrlConnection.java:251)
    at
    com.hp.tis.ewo.clienttools.ServiceFactory.getConnection(ServiceFactory.java:165)
    at
    com.proquest.epc.view.bl.ServerConnectionBL.sendToAppServer(ServerConnectionBL.java:110)
    at
    com.proquest.epc.view.bl.ServerConnectionBL.sendRequest(ServerConnectionBL.java:65)
    at com.proquest.epc.view.rh.LoginRequestor.execute(LoginRequestor.java:24)
    at
    com.proquest.epc.view.impl.MBEPCApplication.main(MBEPCApplication.java:310)
    ... 9 more
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  - parseDouble return scientific computing numberif I use Double.parseDouble("0.0005"), it will return 5 E-4. How can I
    get 0.0005? Thanks,
    
    qq
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  - what the problem about this short code?import javax.media.Manager;
    
    import javax.media.bean.playerbean.MediaPlayer;
    import java.lang.String;
    
    public class Player1 {
    MediaPlayer mp1 = new MediaPlayer();
    public Player1(){
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    }
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    player1.mp1.start();
    }
    }
    
    it says that Cannot find a Player for :file:\d:\music\11.wma.what the
    problem?
- 16
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    hi
    
    I need to capture an image based on the URL of the image provided by
    the user and do the following things
    
    1. Create a thumbnail
    2. Resize the image
    
    I may have to store these two images locally or just recreate these two
    images and display it in the browse.
    
    What are the best tools to use to achieve this? I need a Linux/java
    based solution. Will Imagemagick.org do the magic?
    
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    I have a problem adding a JPanel to a JLayeredPane.
    The class ChartGraphics paints a system of coordinats / Chart on a
    JPanel
    using the paint() metode. When I add the ChartGraphics object directly
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    problems. But as I want to add some buttons on top of the Chart, I
    want to place it in a JLayeredPanel, and afterwards add the Jbuttons.
    The problem is that the Chart is'nt shown if it is placed in the
    JLayeredpane, why? The Button is displayed nicely.
    
    Can anybody tell me how to display my JPanel background from the
    JlayeredPane?
    
    /Thanks
    Kristian
    
    ******************ShowTrendsTest *******************
    
    public class ShowTrendsTest {
    
    public static void main(String[] args) {
    
    JFrame f = new JFrame("ShowTrends");
    ChartGraphics Chart = new ChartGraphics();//extends JPanel
    JButton button = button("TST"); //Just a JButton
    JLayeredPane layeredPane = new JLayeredPane();
    
    layeredPane.add(Chart, new Integer(0));
    layeredPane.add(button, new Integer(1));
    
    f.getContentPane().add(layeredPane);
    
    f.pack();
    f.show();
    }
    
    public static JButton button(String arg){
    JButton b1 = new JButton(arg);
    b1.setVerticalAlignment(JButton.TOP);
    b1.setHorizontalAlignment(JButton.CENTER);
    b1.setOpaque(true);
    b1.setBackground(Color.red);
    b1.setForeground(Color.black);
    b1.setBounds(100, 100, 140, 140);
    return b1;
    }
    }
    
    ********************************************
- 16
  - Mars Rescue Mission ChallengeA new challenge:
    
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    Have fun! Now you can win real prices.
    
    --
    Frank Bu? email***@***.com
    http://www.frank-buss.de, http://www.it4-systems.de

Author

Message

kclan

Posted: 2003-8-20 12:32:00

Top

java-programmer, Execute jar in program code I have a jar file, without source code, say abc.jar.
I have set it in the CLASSPATH
The main execute class in abc.jar is a.class.
In the command prompt, I can execute the program by
issuing "java a < someIOfile"

But I would be like to embed it in my program.
Can I create a "dynamic" instance from it?

Brad BARCLAY

Posted: 2003-8-20 13:34:00

Top

java-programmer >> Execute jar in program code Cyrus Lan wrote:
> I have a jar file, without source code, say abc.jar.
> I have set it in the CLASSPATH
> The main execute class in abc.jar is a.class.
> In the command prompt, I can execute the program by
> issuing "java a < someIOfile"
>
> But I would be like to embed it in my program.
> Can I create a "dynamic" instance from it?

Sure. Just call "a.main(params)". It's a static method no different
from any other Java method, so you can call it as you desire from within
any Java code.

Brad BARCLAY

--
=-=-=-=-=-=-=-=-=
From the OS/2 WARP v4.5 Desktop of Brad BARCLAY.
The jSyncManager Project: http://www.jsyncmanager.org

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