java-programmer >>JPEG manipulation

JPEG manipulation

Index ‹ java-programmer

Previous
- 2
  - Load default web browserHello,
    
    I want to load a default web browser from my swing application [using
    JApplet].
    
    Using Runtime.getRuntime.exec("RunDLL 32.exe
    shell32.dll,shellExec.RunDLL"+url);[for windows]
    default browser can be called.But it is working in normal class & with
    frames only.
    with Applet or in swing-JApplet
    it is showing error as :- java.security.AccessControlException:access
    denied(java.io.FilePermission<<All FILES>>)execute>.
    
    I want a plateform independent solution which will work in swing-JApplet.
    
    --
    Message posted via JavaKB.com
    http://www.javakb.com/Uwe/Forums.aspx/java-jvm/200505/1
- 3
  - tomcat's classpathsHi all.
    
    I have downloaded Tomcat 4.1.27 and I would like to create some JSPs. I took
    an earlier JSP app and put it on Tomcat, and I got a class not found
    exception. How do I set the classpaths for Tomcat?
    
    One more question, how do I change the web document root? For example, I
    want to change it to c:\testing.
    
    Thanks in advance.
- 4
  - create a bean on webapp startupHi,
    
    Unsuccessfully web browsing makes me come here.
    
    I wonder if it's possible to create a bean (used by <jsp:use-bean>) on
    startup, also through web.xml. I've seen it is possible to launch a
    servlet with <load-on-startup> xml element, but, as I believe I've
    understood, it is NOT a persistent object.
    
    So, i'm asking if :
    - is this possible to create a persistent object through a servlet
    lauched at startup ?
    - is there a different way ?
    
    Regards,
    
    --
    Mounir
- 5
  - help:hibernateit drive me crazy!
    where is the error?
    when i use hibernate to connect to the mySQL,some error happens,just
    like:
    net.sf.hibernate.PropertyNotFoundException: no appropriate constructor
    in class:
    
    but i have defined a constructor without parameters!
    
    it really block me,help!
- 5
  - code conventions - validationAnyone know of a code validator that follows this:
    
    http://java.sun.com/docs/codeconv/html/CodeConvTOC.doc.html
    
    TIA
    --
    Mike W
- 5
  - java/berkeley-db self-test hangHello!
    
    The newly updated port of java/berkeley-db hangs during self-tests on one of
    my machines:
    
    dual FreeBSD/i386 6.1-stable - no hang
    single FreeBSD/amd64 6.1-stable - no hang
    dual FreeBSD/amd64 6.2-prerelease - hangs
    
    There is little CPU use and all the process is doing, according to ktrace is
    the repeated:
    
    [...]
    13089 java CALL clock_gettime(0,0x7ffffeff3d00)
    13089 java RET clock_gettime 0
    13089 java CALL kse_release(0x654f20)
    13089 java RET kse_release 0
    13089 java CALL kse_release(0x511f20)
    13089 java RET kse_release 0
    13089 java CALL clock_gettime(0,0x7ffffeff3d00)
    13089 java RET clock_gettime 0
    13089 java CALL kse_release(0x654f20)
    13089 java RET kse_release 0
    13089 java CALL kse_release(0x511f20)
    [...]
    
    Rebuilding Java did not help... Would any Java and/or thread expert, please,
    try to build the port with self-testing enabled and analyze any hang? Thanks
    a lot!
    
    -mi
- 6
  - JTable emulate a HTML Table?Hi,
    
    I want to display a table of user inputted information as a table but I am
    having problems formatting the layout as I want it. I have a fixed cell
    width and want the cell height to adjust to fit the text entered by the
    user.
    I can set the widths but can only set a fixed height for a cell and am
    unable to get text to wrap within it,
    for example. Also with the fixed height, the single line cells would float
    to the vertical center of the cell, not stay at the top. Can alignments be
    set?
    
    [date textfield][item textfield][description textarea][idenifier
    textfield][cost textfield]
    [submit button]
    
    Date Item Description
    Identifier Cost
    12/12/03 Big Pan This is a description field that BPI420
    $60
    15:30 spans multiple lines an needs
    to wrap. The cell height
    should dynamically alter to
    accomodate the text.
    1/1/04 Aspirin This is a much shorter
    AS123 $20
    description
    
    Am I able to do this and if so how?
    Is there a better way to do this than with using a JTable? I tried doing it
    with a gridbag layout but the consecutive items wouldn't stay aligned.
    
    Please help!
    
    Cheers
    
    Xav
- 7
  - HashMap with primitive int keyDear All,
    
    I have a class like this:
    
    class CustomerOrder {
    int globalID;
    ...
    }
    
    I have an array of these.
    I'd like to store an index of globalIDs, so I can do:
    
    CustomerOrder o = index.get(123)
    
    I could modify my class to be:
    
    class CustomerOrder {
    Integer globalID;
    ...
    }
    
    Perhaps it is my C++ background, but the idea of allocating an object for every
    ID when I can just use an int bothers me.
    
    I figure a HashMap is the right tool of choice, e.g.:
    
    HashMap<Integer, CustomerOrder> index = new ...
    
    Has anyone out there already written a modified hashmap class that uses int as
    the key?
    
    Thanks for any tips :)
    
    Andrew
- 8
  - JTextArea SizeHello, I'm writing a java app for a pda and as the screen size is tiny I
    want to write a MiniDialog class. I only want a JTextArea and an OK button
    on it and I want the JTextArea to fit the size of the modal dialog.
    
    If I pass in a long line of text then the JTextArea appears to get wider and
    I have to scroll across the screen to see the text. I want it to wrap onto
    the second line etc.
    
    I must be doing something stupid!
    
    Thanks, Kevin.
    
    import javax.swing.*;
    import java.awt.*;
    import java.awt.event.*;
    
    public class MiniDialog {
    
    JDialog dialog=new JDialog(new JFrame(),"Info",true);
    
    public MiniDialog() { }
    
    public void show(String label) {
    Container c=dialog.getContentPane();
    
    JButton ok=new JButton("OK");
    dialog.getRootPane().setDefaultButton(ok);
    
    ok.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    dialog.dispose();
    }
    });
    
    JTextArea txt=new JTextArea(5,20);
    txt.setEditable(false);
    txt.append(label);
    
    JScrollPane scroll=new JScrollPane(txt);
    scroll.setSize(1,1);
    
    dialog.setSize(200,200);
    dialog.setLocation(20,40);
    c.add(scroll,BorderLayout.CENTER);
    c.add(ok,BorderLayout.SOUTH);
    dialog.show();
    }
    }
- 10
  - String comparision efficencyHI!
    I have an appliation that will need to parse a text of unkown length.
    I get the data as an array of strings (and thus I know then how much
    data it is)
    I want to do several things on each "row" (that is each element in the
    array) I want to
    1. look for a specific word (start) and count how many of them there
    are in total.
    2. Highlight the word alarm and append a short description to the end
    of the line
    
    my first thought was to use
    
    for(int i=0;i<data.length++){
    if(data[i].endsWith("start"){
    // do the work..
    }else if(data[i].startsWith("Alarm")){
    //do different work
    }
    }
    
    this seems to be rather inefficent as I get two (and possibly more, my
    employer did not seem think these few features were enough..)
    Is there a better way to do this.
    As the alarm line also contains an alarm code, I do not know what it
    looks like. Any suggestions?
    
    regards
    /daniel
- 12
  - GUI locking up, but code running fine.I'm using Netbeans 5.0 beta for an IDE, with swing components. The
    situation is something like this:
    
    The program is a board game - the user chooses a building from a panel,
    and then is supposed to get a message to choose what resource to pay
    for it with. Here's a trace of the code:
    
    Game (main object):
    ....
    board[i].activate():
    Game.game.setPlayer(worker);
    Game.game.playerMessage("Choose a wooden building
    from the building panel.");
    Game.game.waitForBuild(type) :
    built = false;
    state = type + Game.BuildWood -
    1;
    
    mainPanel.buildings.getBP().setSelectedIndex(type-1);
    while(!built)
    { Thread.yield(); }
    No problems yet. This works fine, unless a building that needs to call
    chooseResource is selected.
    So, the user clicks one of these buildings, which activates the
    following code, which is where the freeze occurs:
    
    String r = Game.game.chooseResource():
    state = Game.chooseResource;
    resource = "";
    while(resource.length()==0)
    Thread.yield();
    return resource;
    
    Now chooseResource does work in any other context - resource gets set
    by a mouseClicked event handler in a panel out there. But at this
    point, the GUI stops responding. The playerMessage never gets printed,
    and the click event never gets triggered. I did some investigating,
    printing out numbers inside the two inmost loops, and the
    chooseResource loop is continually running. I know the code's ugly,
    but even so, the cause of this behavior is beyond me. Any suggestions
    would be greatly appreciated!
- 13
  - Future of 3Djava
    
    Why comp.lang.java.3d doesn't exist ? If is not dead, for what purpose is
    using: games or some engineering tools ? Does java have a future in a
    gaming industry?
- 13
  - Convert XY position to GridBagLayoutI need a algorythm to convert xy position to gridbagconstrainst
    Has anyone seen a write-up on anything like this ?
    
    thanks
- 14
  - Where have all the wintrolls gone...
    "Phil Earnhardt" <email***@***.com> wrote in message
    news:email***@***.com...
    
    > >> >> No, Luke. Why don't *you* tell *us*: What would be the point of
    > >having
    > >> >> the language in 1441 and then doing *nothing* when Iraq was not
    in
    > >> >> compliance?
    > >> >
    > >> >There wouldn't be any point. You just beat the UN in doing
    something.
    > >>
    > >> The question is actually the opposite, Luke: given the French never
    > >> ever had any intent of enforcing the consequences spelled out in UN
    > >> 1441, why did they ever bother approving it in the first place? Why
    > >> not just be straight with the UN: "We will veto any measure to
    approve
    > >> UN military action against Iraq."
    > >
    > >Actually the sentence doesn't end here. If we put it into context (at
    > >the time) it should read:
    > >
    > >We will veto any measure to approve UN military action against Iraq
    if
    > >the potential approval is to be based on US intelligence (read:
    lies).
    >
    > But UN 1441 wasn't based on US intelligence.
    
    We're not talking about 1441. France didn't vote against 1441. We're
    talking about the invasion "warrant" US wanted to squeeze out of UNSC.
    France felt somewhat reluctant to sign that warrant because the
    evidence US intelligence (sic!) produced was not so very convincing. At
    the time. Later it turned out it was total bullshit. Dubya's setting up
    an investigation right now. In 50 years we might get to know the...
    conclusions.
    
    > The question remains: Iraq failed to comply with the terms of UN 1441.
    > What should have been the consequences of that?
    
    Again? Well, let's hope this time you get it: the terms should have been
    enforced. But not under US flag. Maybe (more than likely) under US boot.
    But the flag should have been the blue UN.
- 14
  - Curb Your Spam RageRoedy Green wrote:
    
    Leave it to good ol' Roeds to feel the spammers' pain.
    
    [snippysnipsnip]

Author

Message

placid

Posted: 2005-12-13 12:29:00

Top

java-programmer, JPEG manipulation Hi all,

I was just wondering if there is a way of changing a JPEG image in
Java, what i mean is, can i edit a JPEG (manipulate pixels in the
image) ?

Thanks in advance

Roedy Green

Posted: 2005-12-13 12:46:00

Top

java-programmer >> JPEG manipulation On 12 Dec 2005 20:29:10 -0800, "placid" <email***@***.com> wrote,
quoted or indirectly quoted someone who said :

>I was just wondering if there is a way of changing a JPEG image in
>Java, what i mean is, can i edit a JPEG (manipulate pixels in the
>image) ?

see http://mindprod.com/jgloss/jai.html
http://mindprod.com/jgloss/image.html
http://mindprod.com/jgloss/imageio.html
--
Canadian Mind Products, Roedy Green.
http://mindprod.com Java custom programming, consulting and coaching.

placid

Posted: 2005-12-13 12:56:00

Top

java-programmer >> JPEG manipulation
Roedy Green wrote:
> On 12 Dec 2005 20:29:10 -0800, "placid" <email***@***.com> wrote,
> quoted or indirectly quoted someone who said :
>
> >I was just wondering if there is a way of changing a JPEG image in
> >Java, what i mean is, can i edit a JPEG (manipulate pixels in the
> >image) ?
>
> see http://mindprod.com/jgloss/jai.html
> http://mindprod.com/jgloss/image.html
> http://mindprod.com/jgloss/imageio.html

sorry but the the links aren't working.

> --
> Canadian Mind Products, Roedy Green.
> http://mindprod.com Java custom programming, consulting and coaching.

Oliver Wong

Posted: 2005-12-13 23:04:00

Top

java-programmer >> JPEG manipulation
"placid" <email***@***.com> wrote in message
news:email***@***.com...
> Hi all,
>
> I was just wondering if there is a way of changing a JPEG image in
> Java, what i mean is, can i edit a JPEG (manipulate pixels in the
> image) ?

Yes.

Sun has libraries for reading JPEG images, from which you can get an
array of pixels. You can modify those pixels any way you like. And Sun also
has libraries for writing those pixels back to disk in JPEG format.

Roedy was trying to give you links, but if his site is down, you can
google for the topics: Lookup JAI which stands for Java Advanced Imaging,
and ImageIO.

- Oliver

Index ‹ java-programmer

Next
- 1
  - Software Development Kit 1.5Im starting with learning Java, and a book i got about it says i need
    Software Development Kit 1.4. If i download and install it, i build a
    java program and i try running it with command prompt.
    But, commandprompt says i need version 1.5... :( Does some1 know where
    i can download this or does some1 know another program to build Java
    programs with and where can i download it...
- 2
  - How to get the path of remotly run application by knowing the port numberHi,
    I am new to this group, and i request you all to help in solving the
    issues i have.
    Thank you for having this group.
    I need to know the path or install directory of an application,
    I am able to access the the application by port number.
    but i need to wright a java programe thr which i need to get the path
    or install directory of the application.
    Eg
    http://servername:2000/
    I request you all to help in the same.
- 3
  - message Driven bean problemhi,
    
    i am trying to design an EJB application using session , entity and
    message beans
    
    it's a messaging board , a user can add a message , reply to a
    message , and delete the message
    
    when glasfish is running more than one application,
    
    the board client side keeps calling the wrong jms\
    
    // the addTopic class
    package web;
    
    import ejb.Topic;
    import java.io.*;
    
    import java.util.Date;
    import javax.annotation.Resource;
    import javax.jms.Connection;
    import javax.jms.ConnectionFactory;
    import javax.jms.JMSException;
    import javax.jms.MessageProducer;
    import javax.jms.ObjectMessage;
    import javax.jms.Queue;
    import javax.jms.Session;
    import javax.servlet.*;
    import javax.servlet.http.*;
    
    public class AddTopic extends HttpServlet {
    
    @Resource(mappedName = "jms/BoardTopicFactory")
    private ConnectionFactory connectionFactorys = null;
    @Resource(mappedName = "jms/BoardTopic")
    private Queue queue = null;
    private Connection connection = null;
    private Session session = null;
    
    @Override
    protected void doGet(HttpServletRequest request,
    HttpServletResponse response)
    throws ServletException, IOException {
    
    try {
    try {
    // creating a connection
    connection = connectionFactorys.createConnection();
    session = connection.createSession(false,
    Session.AUTO_ACKNOWLEDGE);
    MessageProducer messageProducer =
    session.createProducer(queue);
    
    ObjectMessage message = session.createObjectMessage();
    
    Topic topic = new Topic();
    // getting and setting all attributes required for the
    topic
    topic.setTopicDate(new Date());
    // topic name validation , if empty , do not add it to
    the database
    if (request.getParameter("topicName").equals("")) {
    } else {
    
    topic.setTopicName(request.getParameter("topicName"));
    
    message.setObject(topic);
    messageProducer.send(message);
    
    messageProducer.close();
    // connection.close();
    }
    } finally {
    if (session != null) {
    session.close();
    }
    if (connection != null) {
    connection.close();
    }
    }
    } catch (JMSException ex) {
    ex.printStackTrace();
    }
    
    getServletConfig().getServletContext().getRequestDispatcher("/
    index.jsp").forward(request, response);
    }
    
    @Override
    protected void doPost(HttpServletRequest request,
    HttpServletResponse response)
    throws ServletException, IOException {
    doGet(request, response);
    }
    
    /**
    * Returns a short description of the servlet.
    */
    @Override
    public String getServletInfo() {
    return "Short description";
    }
    // </editor-fold>
    }
    
    ----------------------------------------------------------------------------------------------------
    ///the jms class
    
    package ejb;
    
    import javax.annotation.Resource;
    import javax.ejb.ActivationConfigProperty;
    import javax.ejb.MessageDriven;
    import javax.ejb.MessageDrivenContext;
    import javax.jms.JMSException;
    import javax.jms.Message;
    import javax.jms.MessageListener;
    import javax.jms.ObjectMessage;
    import javax.persistence.EntityManager;
    import javax.persistence.PersistenceContext;
    
    @MessageDriven(mappedName = "jms/BoardTopic", activationConfig = {
    @ActivationConfigProperty(propertyName = "acknowledgeMode",
    propertyValue = "Auto-acknowledge"),
    @ActivationConfigProperty(propertyName = "destinationType",
    propertyValue = "javax.jms.Queue")
    })
    public class BoardTopicBean implements MessageListener {
    
    @PersistenceContext
    private EntityManager em;
    @Resource
    MessageDrivenContext mdc;
    
    public BoardTopicBean() {
    }
    
    public void onMessage(Message message) {
    ObjectMessage msg = null;
    try {
    msg = (ObjectMessage) message;
    
    persist(msg.getObject());
    
    } catch (JMSException e) {
    e.printStackTrace();
    mdc.setRollbackOnly();
    } catch (Throwable te) {
    te.printStackTrace();
    }
    }
    
    public void persist(Object object) {
    
    // save the object (MessageTable or Topic)
    em.persist(object);
    
    // if the object is a MessageTable then add this newly created/
    persisted object to the list of messages in the topic
    if (object instanceof MessageTable) {
    MessageTable msg = (MessageTable) object;
    Topic topic = msg.getTopic();
    
    if (topic == null) {
    em.remove(msg);
    } else {
    topic = em.find(Topic.class, topic.getId());
    topic.getMessages().add(msg);
    em.merge(topic);
    }
    } else {
    System.out.println("Wrong type in
    merge..................");
    }
    }
    }
    ----------------------------------------------------------------------------------------------------------------------
    some of the exceptions thrown to the console
    
    DirectConsumer:Caught Exception delivering
    messagecom.sun.messaging.jmq.io.Packet cannot be cast to
    com.sun.messaging.jms.ra.DirectPacket
    MQJMSRA_DM4001: :Exception:ObjectMessage.getObject()DeSerializing
    object::message=ejb.Topic
    javax.jms.MessageFormatException:
    MQJMSRA_DM4001: :Exception:ObjectMessage.getObject()DeSerializing
    object::message=ejb.Topic
    at
    com.sun.messaging.jms.ra.DirectObjectPacket.getObject(DirectObjectPacket.java:
    169)
    at ejb.HockeyMessagesBean.onMessage(HockeyMessagesBean.java:
    34)
    at sun.reflect.GeneratedMethodAccessor140.invoke(Unknown
    Source)
    at
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
    25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at
    com.sun.enterprise.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:
    1067)
    at
    com.sun.enterprise.security.SecurityUtil.invoke(SecurityUtil.java:176)
    at
    com.sun.ejb.containers.BaseContainer.invokeTargetBeanMethod(BaseContainer.java:
    2895)
    at
    com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:
    3986)
    at
    com.sun.ejb.containers.MessageBeanContainer.deliverMessage(MessageBeanContainer.java:
    1111)
    at
    com.sun.ejb.containers.MessageBeanListenerImpl.deliverMessage(MessageBeanListenerImpl.java:
    74)
    at
    com.sun.enterprise.connectors.inflow.MessageEndpointInvocationHandler.invoke(MessageEndpointInvocationHandler.java:
    179)
    at $Proxy52.onMessage(Unknown Source)
    at
    com.sun.messaging.jms.ra.OnMessageRunner.run(OnMessageRunner.java:258)
    at
    com.sun.enterprise.connectors.work.OneWork.doWork(OneWork.java:76)
    at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl
    $WorkerThread.run(ThreadPoolImpl.java:555)
    Caused by: java.lang.ClassNotFoundException: ejb.Topic
    at
    com.sun.enterprise.loader.EJBClassLoader.findClassData(EJBClassLoader.java:
    718)
    at
    com.sun.enterprise.loader.EJBClassLoader.findClass(EJBClassLoader.java:
    631)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:
    319)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:247)
    at com.sun.messaging.jms.ra.DirectObjectPacket
    $ObjectInputStreamWithContextLoader.resolveClass(DirectObjectPacket.java:
    301)
    at
    java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:
    1575)
    at
    java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
    at
    java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
    1732)
    at
    java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:
    351)
    at
    com.sun.messaging.jms.ra.DirectObjectPacket.getObject(DirectObjectPacket.java:
    155)
    ... 15 more
    DirectConsumer:Caught Exception delivering
    messagecom.sun.messaging.jmq.io.Packet cannot be cast to
    com.sun.messaging.jms.ra.DirectPacket
    MQJMSRA_DM4001: :Exception:ObjectMessage.getObject()DeSerializing
    object::message=ejb.HockeyEntity
    javax.jms.MessageFormatException:
    MQJMSRA_DM4001: :Exception:ObjectMessage.getObject()DeSerializing
    object::message=ejb.HockeyEntity
    at
    com.sun.messaging.jms.ra.DirectObjectPacket.getObject(DirectObjectPacket.java:
    169)
    at ejb.BoardTopicBean.onMessage(BoardTopicBean.java:33)
    at sun.reflect.GeneratedMethodAccessor146.invoke(Unknown
    Source)
    at
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
    25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at
    com.sun.enterprise.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:
    1067)
    at
    com.sun.enterprise.security.SecurityUtil.invoke(SecurityUtil.java:176)
    at
    com.sun.ejb.containers.BaseContainer.invokeTargetBeanMethod(BaseContainer.java:
    2895)
    at
    com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:
    3986)
    at
    com.sun.ejb.containers.MessageBeanContainer.deliverMessage(MessageBeanContainer.java:
    1111)
    at
    com.sun.ejb.containers.MessageBeanListenerImpl.deliverMessage(MessageBeanListenerImpl.java:
    74)
    at
    com.sun.enterprise.connectors.inflow.MessageEndpointInvocationHandler.invoke(MessageEndpointInvocationHandler.java:
    179)
    at $Proxy56.onMessage(Unknown Source)
    at
    com.sun.messaging.jms.ra.OnMessageRunner.run(OnMessageRunner.java:258)
    at
    com.sun.enterprise.connectors.work.OneWork.doWork(OneWork.java:76)
    at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl
    $WorkerThread.run(ThreadPoolImpl.java:555)
    Caused by: java.lang.ClassNotFoundException: ejb.HockeyEntity
    at
    com.sun.enterprise.loader.EJBClassLoader.findClassData(EJBClassLoader.java:
    718)
    at
    com.sun.enterprise.loader.EJBClassLoader.findClass(EJBClassLoader.java:
    631)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:
    319)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:247)
    at com.sun.messaging.jms.ra.DirectObjectPacket
    $ObjectInputStreamWithContextLoader.resolveClass(DirectObjectPacket.java:
    301)
    at
    java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:
    1575)
    at
    java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
    at
    java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
    1732)
    at
    java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:
    351)
    at
    com.sun.messaging.jms.ra.DirectObjectPacket.getObject(DirectObjectPacket.java:
    155)
    ... 15 more
    DirectConsumer:Caught Exception delivering
    messagecom.sun.messaging.jmq.io.Packet cannot be cast to
    com.sun.messaging.jms.ra.DirectPacket
    MQJMSRA_DM4001: :Exception:ObjectMessage.getObject()DeSerializing
    object::message=ejb.HockeyEntity
    
    -----------------------
    
    any idea guys???
- 4
  - FYI: A new open source/free O/R mapping tool and server page frameworkAnnounce:
    
    A new open-source O/R mapping tool has just been released. There
    are many such programs out there...but this one is very
    special because it's simple (no xml configuration ! yay) and has
    been tested extensively with postgres (and a bit with mysql).
    
    This tool has been used in production enviroments so the
    generated code has most bugs squeezed out by now.
    
    If you have a minute, you can check it out at:
    
    http://www.mollypages.org/dbo/
    
    There's also a server-side page type thingy (like JSP) but with
    much cleaner syntax (and easy typing).
    
    Enjoy !
- 5
  - Eclipse bug?Eclipse bug? Using most recent version (as of a couple weeks ago,
    anyway), if it sits idle for a day or two in the taskbar, it stops
    responding -- or at least it is really sluggish if you try to use it
    again, and not just for a short time, but until you quit and restart it.
- 6
  - Dynamic page creation using swingHello,
    
    I have created a user interface using swing which takes a file as input
    from the user and has a button for submission purpose. Once the user
    clicks on the submit button i want the file to be fed to a particular
    server. How do i do this? Is there a way to use scripting languages
    like Perl, JavaScript with swing?
    
    Please give your suggestions.
    
    Thanks,
    nisha
- 7
  - Bug#438188: RFP: schemaspy -- Graphical Database Schema Metadata BrowserPackage: wnpp
    Severity: wishlist
    
    * Package name : schemaspy
    Version : 3.1.1
    Upstream Author : John Currier <email***@***.com>
    * URL : http://schemaspy.sourceforge.net/
    * License : LGPL
    Programming Lang: Java
    Description : Graphical Database Schema Metadata Browser
    
    SchemaSpy is a Java-based tool (requires Java 1.4 or higher) that
    analyzes the metadata of a schema in a database and generates a visual
    representation of it in a browser-displayable format. It lets you click
    through the hierarchy of database tables via child and parent table
    relationships. The browsing through relationships can occur though HTML
    links and/or though the graphical representation of the relationships.
    It's also designed to help resolve the obtuse errors that a database
    sometimes gives related to failures due to constraints.
    
    --
    To UNSUBSCRIBE, email to email***@***.com
    with a subject of "unsubscribe". Trouble? Contact email***@***.com
- 8
  - Using Unicode symbolsI'm trying to use some of the "Miscellaneous Symbols" from the Unicode
    character set in a program but getting absolutely nowhere. Can someone
    please point me in the right direction for starters?
    
    Thanks
    Jim
- 9
  - BZip2-Files & JavaOk two things:
    I'm trying to get the Apache BZip2 Library to work, but I always get a
    NullPointerException. My code looks like this:
    
    [CODE]
    void load(String filename) throws FileNotFoundException, IOException {
    FileInputStream fis = new FileInputStream(filename);
    CBZip2InputStream = new CBZip2InputStream(fis);
    }
    [/CODE]
    
    As soon as the creation of the CBZip2InputStream is reached, a
    NullpointerException is thrown. Why?
    Secondly: if the library is corrupted (e.g. doesn't work stable) is
    there an alternative to it (Googleing did not help me very much)?
    
    Snyke
- 10
  - any nerds doing nex gen XML/Semantic Web security?http://groups.yahoo.com/group/SandHillEC/
    
    Where MITs/Berkeleys/IITs/Caltechs/Xerox Parcs CSEEs
    hang when they want to fund the next big thing.
- 11
  - richtext componentIsn't there a richtext component available within java sdk? I know I don't
    see any in the pallette, is there a class where i can initiate one? or 3rd
    party?
- 12
  - Dynamic resizing of JPanelDear experts,
    
    I have the a JDesktopPane and a JPanel added to the CENTER and SOUTH
    position of a JFrame respectively.
    
    I would like to dynamically resize the JPanel upon mouseExited like the
    Windows TaskBar.
    
    On mouseExited of the JPanel i set the bounds of the JPanel to a new
    size. However, the sizes do not reflect visually. I have called
    invalidate(), validate(), repaint() and none seems to work.
    
    Other than using JSplitPane to create a resizable JPanel, how can I make
    this work?
    
    Others have suggested using LayoutManagers but which one and how?
    
    Thank you in advance.
- 13
  - wats the cluefrnds wen we connect with Oracle server from java,we use
    getConnection(oracledriver,IPadress of
    server,servername,username ,password);
    forgive me if they r not in the same order.now my question is wat is
    the server name if we use same system for server as well as
    client.Ofcourse the IP address is loop back address.
    
    Thanks in Advance.
    Srinivas Reddy Thatiparthy.
- 14
  - JCheckBox problem Please helpHi All
    
    My question is how to remove the border from inner rectangle of a
    JCheckBox.
    
    A JCheckBox has 2 rectangles,it is possible to remove the boder from the
    outside one ,but what about the rectangle where the user clicks.(I am
    referring this rectangle as inner rectangle)
    
    Hoping a quick reply
    
    Praveen
    
    --
    Message posted via http://www.javakb.com
- 15
  - How do you access your computer's time using Java?What is the way of getting your system's current time(as shown in the
    system tray in Windows) in Java?
    Thanks.