java-programmer >>load JNI from resource file?

load JNI from resource file?

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- 2
  - Eclipse IDE Javadoc TooltipsHi:
    
    I'm using the Eclipse IDE for Java development, but am running into
    some problems with the "Content\Code Assist" feature. Normally, when I
    partially enter the name of a particular class of package, the IDE
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    I know that this feature is enabled because it is able to show me the
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    I have set the Javadoc location for that project to the following
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    Can anyone help out?
    
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  - YourKit Java Profiler 2.1 Beta 2 ReleasedChanges in build 304:
    - IDE integration: Eclipse is supported under Linux
    - New agent parameter 'onexit' allows to automatically capture
    snapshots on profiled application exit. See bundled documentation for
    details.
    - New agent parameter 'debugcompat' added as a workaround for JVM bug
    that causes hangup of profiled application launched in remote debug
    mode (happens, for example, when Debug is used in IntelliJ IDEA 4.x).
    See bundled documentation for details.
    - Percents as well as absolute values are shown in CPU and memory
    views
    - IDE integration: navigation to source code is supported for Eclipse
    (if you have previous build installed, please run 'Tools | Integrate
    with IDE...' again to install the new plugin)
    
    The list of all improvements and features planned for 2.1 can be found
    at
    http://www.yourkit.com/preview/index.jsp
    
    We welcome your feedback at email***@***.com
    
    Best regards,
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    thru web services. we are able to connect EJB and get the response
    from websphere server using web services. The below code is in EJB as
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    public Vector getData(){
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    for(int i=0;i<20000;i++)
    v.add("String");
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    I use SOAP RPC encoding and in the client side i use SOAP.jar to
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    but it takes around 8 seconds to get the response.
    
    at the same time, i used below code in EJB as business method
    
    public Vector getData(){
    Vector v = new Vector();
    for(int i=0;i<20000;i++)
    v.add(new DataObject("String"));
    return v;
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    public class DataObject{
    String str = null;
    public DataObject(String data){
    str = data;
    }
    
    public String getData(){
    return str;
    }
    
    public void setData(String data){
    this.data = data;
    }
    
    }
    
    here, i create object for my own DataObject class.
    
    now i connect to this EJB, it takes double the amount of time to get
    the response.
    
    Please help me, Is there any other way to increase the performance of
    web services?
    
    Thanks,
    Raja
- 4
  - Java 1.5 and system fontsHi,
    
    I don't know if this is the right group to ask this (if not, where
    should I post?), but here we go: I have two machines, both running
    Debian, and installed the official Sun JDK (1.5.0_05) on both. Here's
    the question: on one machine, Java applications find all fonts that
    have been installed on the system; on the other, Java applications only
    find a very small set of standard fonts.
    
    Obviously, there must a difference between the two systems (they are
    certainly not identical, although they are pretty similar) -- but I
    can't think what it could be. It is certainly not a configuration in
    the JDK itself, because the two installations on both machines are
    identical (I even diff-ed both directories to be sure :-) What I don't
    know is how to make fonts available to the JVM - or, what I have done
    wrong/correct on either machine. I know the fonts have been installed,
    because running Gimp (for instance) on either machine finds all the
    fonts. The fontconfig configuration in /etc/fonts is also identifical
    as far as I can see (I don't know if that has anything to do with
    anything, but I checked anyway :) Also, both systems are running defoma
    (the Debian font manager), but I don't know if that can help in any way
    here.
    
    Any pointers or hints would be appreciated,
    
    Thanks,
    
    Edsko
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  - Screen Fonts in SwingHello everybody;
    
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- 7
  - Quick questionI am not sure if this is the group i should post this question so
    maybe you can point me in the right direction.
    
    I have a computer and when I install the java runtime environment it
    installs but when i try to access a page that uses java the screen
    freezes and some times turnes scrambles with blue colors. I have
    never seen anything like this. The OS works fine otherwise. I have
    tryed to uninstall and reinstall. The web site I go to needs it and
    if you don't have it installed it begins an installation for you.
    Thanks for any help you can give me
    Ben Dunning
- 7
  - Converting byte array to stringHi,
    I am trying to convert a byte array to a string. I am using the
    possible ways
    but not getting the result.
    
    DatagramPacket dgram = new DatagramPacket(buf, buf.length);
    ByteArrayInputStream byteIn = new ByteArrayInputStream (dgram.getData
    (), 0, dgram.getLength ());
    
    ObjectInputStream oin = new ObjectInputStream(byteIn);
    Object obj = oin.readObject();
    String recvString = obj.toString();
    DataInputStream dataIn = new DataInputStream (byteIn);
    String recvString = dataIn.readLine();
    
    String recvString = new String(dgram.getData(),0,dgram.getLength());
    String recvString = dataIn.readLine();
    
    I am trying all these to convert my byte array to a string
    But I am getting exception as invalid header.
    
    Can anybody please suggest me.
    
    Regards,
    Hari.
- 7
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    I understand that if it's non gui then i should not involve gui classes.
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- 7
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    I'm working in an environment with many class loaders. A code in some
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    the data came from one jar, I could just keep the url to that jar. But,
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    class loader, so it has reference to 3rd party libraries), then how can
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    Thanx,
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  - visit http://www.real-article.com/java/index.phpThe www.real-article.com website provides a ton of information about
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- 8
  - java access to USB MAC OS XI have a simple requirement at this point an Apple MAC OS X - that is
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    I have read about JSR 80, javax.usb, jUSB and all indicate not
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    I also know that in linux, I can do a "cat /proc/bus/usb/devices" and
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    Any suggestions on how to get the presence or lack of a USB device
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- 15
  - stability problems under eclipse on amd64 platform
    
    I would like the following patch file to be tested and committed to the
    java/jdk15 port until patch 6 is released on FreeBSD. This patch has
    eliminated crashes for me and has made a significant difference in the
    stability of eclipse.
    
    Cheers,
    Sean
- 15
  - question about DES APIHello All,
    
    The following is the code I wrote to do DES encryption.
    public byte[] run ()throws Exception
    {
    // TODO Auto-generated method stub
    byte[] re = null;
    byte[]re1 = null;
    if (key.length != 8){
    throw new DesException("Invalid Key!!!");
    }
    KeyGenerator kg = KeyGenerator.getInstance("DES");
    SecretKey sk = kg.generateKey();
    SecretKeySpec desKey = new SecretKeySpec(key, "DES");
    Cipher des = Cipher.getInstance("DES");
    if ((comm == Cipher.DECRYPT_MODE) && (data.length != 8)){
    throw new DesException("Invalid Key!!!");
    }
    des.init(Cipher.ENCRYPT_MODE, desKey);
    int l = des.getOutputSize(8);
    re = des.doFinal(data);
    
    des.init(Cipher.DECRYPT_MODE, desKey);
    l = des.getOutputSize(16);
    re1 = des.doFinal(re);
    return re;
    }
    
    I don't understand why I try entrypt 8 bytes data, the the length of
    return value is 16 bytes, the first 8 bytes are what I want, what are
    last 8 bytes? as far as I know, for des, the input block is 8 bytes,
    output block is 8 bytes too. I use this return value to decrypt, I got
    correct value.
    
    If I just input first 8bytes to decrypt I got exception.
    
    Anyone can explain this to me or recommend any detail document about
    these API?
    
    Thanks a lot.

Author

Message

Mike Suchoff

Posted: 2003-11-15 1:38:00

Top

java-programmer, load JNI from resource file? I am able to write a C native interface and load it using the
System.loadLibrary() routine.

Is there anyway to store the native interface library (say
"hello.dll") into a jar and then load the file from the jar?

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- 1
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    JSP and java servlets, that interact with paypal. They also use JCE
    and Javamail.
    
    Im currently hosted with godaddy, but I think I need to jump away from
    them because they dont allow me to interact with paypal from a java
    servlet.
    
    I was wondering if anyone has had any good experiences with ANY hosting
    company for these issues, specifically
    
    http://www.adsinmedia.com/JSP-Servelets-Hosting-India.html
    http://www.visionwebhosting.net/
    http://www.belahost.com/pp/index.php
    
    thanks for any feedback!
- 14
  - Java ArchitectDoes this forum have an experienced Java Architect? I would like to
    bounce a few questions to someone with some industry experience. I am
    the project manager for a new software app. I would like some advice on
    java architecture and technologies. Appreciate this is all high-level,
    but if certain technologies jump out to you then please let me know.
    
    Scenario: Message brokering of news items over a LAN
    
    User view is a java applet or could be java enabled web page (some kind
    of smart console running on their PC desktop)
    
    For now the application will have 50 users all on the same internal
    network.
    
    Central Oracle/SQL Server Repository - holding messages.
    
    All clients communicate with central database that holds messages and
    configuration information.
    
    Based on the config. found each java client will dynamically build drag
    and drop lists/trees of this information.
    
    Ability to screen capture based on a user selection and upload the
    image to a DB repository
    
    Each client will be able to post new messages to the server which will
    need to alert the other clients.
    
    An author of a message can see if messages have been read by the
    consumers. If the user has not read the author can send a warning to
    that particular user.
    
    Licensing needs to be built in to restrict to 50 concurrent users.
    
    Security login screens are required. Use central db server to
    authenticate.
    
    Scenario2: This is where it gets interesting. How would this change in
    a WAN scenario? - Could this even work using zero front print java?
    
    Also if you live in/near London then please let me know.
    Andy
- 15
  - Data entry applicationHi,
    I am an intermediate computer science student and I am in need of a "macro
    type" tool/language that will let me automate a data entry process. The
    data entry is rather simple but requires connecting to a server in between
    data inputs, which ends up taking a lot of time per entry (about 10 minutes
    per complete entry). On average, there are 50 - 100 entries to be made (10
    min * 50 entries = one hell of a boring day.) The data that is to be
    entered is in Excel, and then I (or some other unlucky person) must enter
    the data manually into a prompt/DOS-like program run in the Windows (2000)
    environment.
    
    Would you know of anything that could help? Is there a way to do something
    like this with any language? What would be required to setup the automation
    (in the Windows environment)? I am pondering if a simple Windows
    application that replicates key-strokes and has a timer capability would do
    the trick (although I doubt it would be able to read the spreadsheets)?
    
    Please let me know if you have any suggestions or comments. My thanks in
    advance for any help.
    
    email***@***.com