Problem with cz.dhl.ftp.Ftp.class

In order to bypass a nasty HTTP upload problem at my cheap hoster, I want to use a java ftp upload control. I've stumbled upon http://jvftp.sourceforge.net/ (which is LGPL-equived) but can't get it up and running.
I know a fair bit about js & ajax, but nexttonothing about java..
Hope you can help a bit..
First, i'm confused about which version to use. There's a plain jvFtp.jar, and a jvFtp-AWT.jar and a jvftplib.jar. The documentation (http://jvftp.sourceforge.net/docs/api/) isnt clear on what to use when, and how, from a browser perspective.
The current error i'm stuck at is
exception: java.lang.ClassCastException: dz.dhl.ftp.Ftp
my applet code reads
<applet code='cz/dhl/ftp/Ftp.class' archive='<?=MB_CODE_URL?>lib/jvftp.jar' codebase='.' style='width:400px; height:250px;'> </applet>
If you need any more info i'm happy to provide it..

Oh, the only other thing i could find on google about this, is an apparently incomplete and slightly buggy howto;
http://www.velocityreviews.com/forums/showpost.php?p=570401&postcount=6

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Media/Lacrosse-1-tiny.3gp
I can't find the file on your server.
They may also need to edit the .htaccess file to allow the .3gp file extension be used. Call them.

Problem with constructors and using public classes

Hi, I'm totally new to Java and I'm having a lot of problems with my program :(
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System.out.println(args[i] + " is not an integer");
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I've made changes and now my code looks like this:
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public class ESieveTest{
public static int max(int[] args) {
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int n; int i, j;
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Hello,
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Hello,
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Hi
I am using file adapter in my receiver communication channel. I dont know the physical existance of the system so i have created one business service. Under this business system i have created a file adapter with FTP protocol. I have given all the parameters. But when i am trying to execute my scenarion i am getting the following error in SXMB_MONI.
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Bouncing off the wall: Problems with passing/using pointers to classes

I have a mostly completed "msPaint" (=assigment) program that is driving me nuts!!!
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import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
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     private JPanel bottom;
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               top.add(next);
               top.add(previous);
               top.add(last);
               top.add(help);
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               oval.addActionListener(this);
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               line.addActionListener(this);
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               solid.addActionListener(this);
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               hollow.addActionListener(this);
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               left.add(oval);
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               left.add(solid);
               left.add(hollow);
               left.add(erase);
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               black.setPreferredSize(new Dimension(bsize,bsize));
               black.setOpaque(true);
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               darkgray.setPreferredSize(new Dimension(bsize,bsize));
               darkgray.setOpaque(true);
               darkgray.setBackground(new Color(70,70,70));
               darkgray.addActionListener(this);
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               darkred.setPreferredSize(new Dimension(bsize,bsize));
               darkred.setOpaque(true);
               darkred.setBackground(new Color(180,0,0));
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               darkblue.addActionListener(this);
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               darkgreen.setOpaque(true);
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               darkgreen.addActionListener(this);
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               bottommiddletop.add(darkred);
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               gray.setOpaque(true);
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               blue.addActionListener(this);
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               green.setPreferredSize(new Dimension(bsize,bsize));
               green.setOpaque(true);
               green.setBackground(new Color(0,255,0));
               green.addActionListener(this);
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               yellow.setPreferredSize(new Dimension(bsize,bsize));
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               yellow.setBackground(new Color(255,255,0));
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               orange.setPreferredSize(new Dimension(bsize,bsize));
               orange.setOpaque(true);
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               bottommiddle.add(gray);
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               bottommiddle.add(purple);
               bottommiddle.add(blue);
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               newshape.setColor(170,85,0);
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               newshape.setColor(0,0,255);
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               bottomleft.setBackground(new Color(255,0,0));
               newshape.setColor(255,0,0);
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               newshape.setColor(0,255,0);
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               line.setBackground(Color.blue);
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               newshape.setShape(2);
               oval.setBackground(Color.blue);
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               solid.setBackground(Color.blue);
               hollow.setBackground(Color.gray);
               newshape.setFill(1);
          if(e.getSource()==hollow)
               hollow.setBackground(Color.blue);
               solid.setBackground(Color.gray);
               newshape.setFill(0);
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          oval.setBackground(Color.gray);
          line.setBackground(Color.gray);
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          newshape=a;
          shapes=b;
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          draw=a;
     public void setLoc(int xt,int yt,int xb,int yb)
          xL=xt;
          yL=yt;
          xR=xb;
          yR=yb;
     public void setColor(int r,int b,int g)
          red=r;
          blue=b;
          green=g;
     public void setShape(int thisshape)
          shape=thisshape;
     public void setFill(int fil)
          fill=fil;
     public void drawShape(Graphics g)
          if(draw==true && setupshape==true)
               System.out.println("This shape setup");
               g.setColor(new Color(red,blue,green));
               switch(shape)
                    case 0: makeLine(g);break;
                    case 1: makeRect(g);break;
                    case 2: makeOval(g);break;
               setupshape=false;
          else if(draw==true)
               System.out.println("This shape redrawn");
               switch(shape)
                    case 0: drawLine(g);break;
                    case 1: drawRect(g);break;
                    case 2: drawOval(g);break;
     public void reset(boolean a)
          setupshape=a;
     public void drawLine(Graphics g)
          g.drawLine(xL,yL,xR,yR);
     public void drawRect(Graphics g)
          if(fill==0)
               g.drawRect(xL,yL,xR,yR);
          else
               g.fillRect(xL,yL,xR,yR);
     public void drawOval(Graphics g)
          if(fill==0)
               g.drawOval(xL,yL,xR,yR);
          else
               g.fillOval(xL,yL,xR,yR);
     public void makeLine(Graphics g)
          g.drawLine(xL,yL,xR,yR);
     public void makeRect(Graphics g)
          sortvalue();
          if(fill==0)
               g.drawRect(xL,yL,xR,yR);
          else
               g.fillRect(xL,yL,xR,yR);
     public void makeOval(Graphics g)
          sortvalue();
          if(fill==0)
               g.drawOval(xL,yL,xR,yR);
          else
               g.fillOval(xL,yL,xR,yR);
     public void sortvalue()
               if(xR<xL)
               int temp=xR;
               xR=xL;
               xL=temp;
          if(yR<yL)
               int temp=yR;
               yR=yL;
               yL=temp;
          yR=(yR-yL);
          xR=(xR-xL);

Sorry mate but you need a lot of work....
I like what you've done but (in my humble opinion) it needs a lot of reworking.
Your problem is you're not storing the shapes. You've set up an array but you never assign the shapes to it. I would reccomend using a vector. Heres a quick bit of pseudo code.
Listener class
mouseClicked method
if first click
get mouse x/y
if second click
get mouse x/y
create new MyShape(x1, y1, x2, y2)
call data.addShape(new MyShape)
Data class
constructor
this.myVector = new Vector()
addShape(MyShape shape) method
this.myVector.addElement(shape) -- add new shape
this.myVector.remove(0) -- remove bottom shape
drawAllShapes method
Enumeration enum= this.myVector.elements()
while(enum.hasMoreElements())
MyShape shape = (MyShape)enum.nextElement()
shape.draw()
Feel free to ask any questions.
Rob.

Problem with final variables and inner classes (JDK1.1.8)

When using JDK1.1.8, I came up with following:
public class Outer
    protected final int i;
    protected Inner inner = null;
    public Outer(int value)
        i = value;
        inner = new Inner();
        inner.foo();
    protected class Inner
        public void foo()
            System.out.println(i);
}causing this:
Outer.java:6: Blank final variable 'i' may not have been initialized. It must be assigned a value in an initializer, or in every constructor.
public Outer(int value)
^
1 error
With JDK 1.3 this works just fine, as it does with 1.1.8 if
1) I don't use inner class, or
2) I assign the value in initializer, or
3) I leave the keyword final away.
and none of these is actually an option for me, neither using a newer JDK, if only there is another way to solve this.
Reasons why I am trying to do this:
1) I can't use a newer JDK
2) I want to be able to assign the variables value in constructor
3) I want to prevent anyone (including myself ;)) from changing the value in other parts of the class (yes, the code above is just to give you the idea, not the whole code)
4) I must be able to use inner classes
So, does anyone have a suggestion how to solve this problem of mine? Or can someone say that this is a JDK 1.1.8 feature, and that I just have to live with it? In that case, sticking to solution 3 is probably the best alternative here, at least for me (and hope that no-one will change the variables value). Or is it crappy planning..?

You cannot use a final field if you do not
initialize it at the time of declaration. So yes,
your design is invalid.Sorry if I am being a bit too stubborn or something. :) I am just honestly a bit puzzled, since... If I cannot use a final field in an aforementioned situation, why does following work? (JDK 1.3.1 on Linux)
public class Outer {
        protected final String str;
        public Outer(String paramStr) {
                str = paramStr;
                Inner in = new Inner();
                in.foo();
        public void foo() {
                System.out.println("Outer.foo(): " + str);
        public static void main( String args[] ) {
                String param = new String("This is test.");
                Outer outer = new Outer(param);
                outer.foo();
        protected class Inner {
                public void foo() {
                        System.out.println("Inner.foo(): " + str);
} producing the following:
[1:39] % javac Outer.java
[1:39] % java Outer
Inner.foo(): This is test.
Outer.foo(): This is test.
Is this then an "undocumented feature", working even though it shouldn't work?
However, I assume you could
get by with eliminating the final field and simply
passing the value directly to the Inner class's
constructor. if not, you'll have to rethink larger
aspects of your design.I guess this is the way it must be done.
Jussi

Problem with file.listFiles() of File class??

Hi all friends,
Iam facing with one peculiar problem,Iam using [file.listfiles()] method of File class in my program and this method of file class introduced in Java2.Now when Iam runing on Mac OS classic(8 to 9)[it is my client requirement they can't change Mac OS classic to Mac OS X] it is giving me error file.listfiles() not found in java.io package coz in Mac classic I have used MRJ2.2.6(for runtime) and MRJ SDK2.2 which is based on jdk1.1.8 and this method[listfiles()] added in java2.But now for me I can't change this method in program coz it is a big code and I have to change lot of things in my program.Can any one plz tell me can i find any (java.io) package of java2 seperately in the from of .jar or .zip so that i can keep it in my MRJCLASSES folder and from there I can import it in my program.Eagerly waiting for reply.
Regards
Bikash

Just use File.list(). There are minor semantical differences but they are easy to work around.

Problems with data controls from java classes in JSF pages.

Hi! We have a problem in our Application that we are developing with JSF pages using Data Controls generated from facades java classes. When we running a page in debug mode and the page are loading, if we insert a breakpoint in the first line of method referenced in the data control, the execution enter two times in the method, and this is a problem for us. How to solve this?
We are using JDeveloper 11.1.1.2 with ADF faces.

You might need to play around with the refresh property of the action binding.
http://download.oracle.com/docs/cd/E15523_01/web.1111/b31974/adf_lifecycle.htm#BJECHBHF

Problem with lazy initialization in inhereted class

Hi. I have a strange problem. I have 2 classes CMRCommandInputPanel (view ) , class CommandInputFieldsModel (view's model) and 2 classes that inherets from them: CMRDerivitiveCommandInputPanel and DerivativeCommandInputFieldsModel.
the Views looks like:
public class FormPanel extends JPanel {
    protected AbstractFormDataModel mFormModel = null;
    public FormPanel(AbstractFormDataModel formModel) {
        super();
        initialize(formModel);
    private void initialize(AbstractFormDataModel formModel) {
        mFormModel = formModel;
public class CMRCommandInputPanel extends FormPanel {
     public CMRCommandInputPanel(AbstractFormDataModel formModel) {
          super(formModel);
          initialize();
     private void initialize() {
          initLocalModels();
        JPanel mainPanel = new JPanel () ;
         mainPanel.setLayout(new BorderLayout());
        mainPanel.add(getUpperButtonsPanel(), BorderLayout.NORTH);
        mainPanel.add(getFormPanel(), BorderLayout.CENTER);
        mainPanel.add(getDownButtonsPanelDefault(), BorderLayout.SOUTH);
        mainPanel.addMouseListener(new MouseAdapter(){
            public void mouseClicked(MouseEvent e) {
                 // set focus on the formPanel in order to set the entered value on mouse click.
                    getFormPanel().requestFocus();
        this.setLayout(new BorderLayout());
        this.add(mainPanel);
        this.setBorder(UIConstants.DEFAULT_PANEL_BORDER);
     protected CMRPanel getFormPanel() {
          if (mFormPanel == null) {
                adding editable TextFields to the panel.
         return mFormPanel;
     protected void initLocalModels(){
          new CommandInputFieldsModel(mFormModel,this);
public class CMRDerivitiveCommandInputPanel extends CMRCommandInputPanel {
     private JTitledTextField mRealizationPriceField = null;
     public CMRDerivitiveCommandInputPanel(AbstractFormDataModel formModel) {
          super(formModel);
// override of super method
     protected CMRPanel getFormPanel() {
          if (mFormPanel == null) {
                adding super classes editable TextFields to the panel and some new ones
          return mFormPanel;
     /* (non-Javadoc)
      * @see cmr.client.ui.CMRCommandInputPanel#initLocalModels()
     protected void initLocalModels() {
          new DerivativeCommandInputFieldsModel(mFormModel,this);
     public JTextField getRealizationDateField() {
          if (mRealizationDateField == null) {
               mRealizationDateField = new JTextField();
          return mRealizationDateField;
public class CommandInputFieldsModel extends AbstractFieldsDataModel {
     protected CMRCommonDataModel mFormModel = null;
     protected CMRCommandInputPanel mView = null;
     public CommandInputFieldsModel(CMRCommonDataModel data,CMRCommandInputPanel aView){
          mFormModel = data;
          mView = aView;
          mFormModel.registryModel(this,ExBaseDataController.META_KEY);
          mFormModel.registryModel(this,CompanyMessagesController.META_KEY);
          mFormModel.registryModel(this,DefaultFinancialValueController.META_KEY);
          mFormModel.registryModel(this,QuantityValueController.META_KEY);
          mFormModel.registryModel(this,RateForPercentController.META_KEY);
     /* (non-Javadoc)
      * @see cmr.client.ui.data.CMRUpdatable#updateData(java.lang.Object)
     public void updateData(Object aNewData) {
            updating relevant fields by using getters of View
public class DerivativeCommandInputFieldsModel extends CommandInputFieldsModel {
     public DerivativeCommandInputFieldsModel(CMRCommonDataModel data,CMRDerivitiveCommandInputPanel aView){
          super(data,aView);
     /* (non-Javadoc)
      * @see cmr.client.ui.data.CMRUpdatable#updateData(java.lang.Object)
     public void updateData(Object aNewData) {
          if (aNewData instanceof RealizationData){
               RealizationData realizationData = (RealizationData)aNewData;
               CMRDerivitiveCommandInputPanel theView = (CMRDerivitiveCommandInputPanel)mView;
               theView.getRealizationDateField().setValue(realizationData.getRealizationDate());
               theView.getRealizationPriceField().setValue(realizationData.getRealizationPrice());
          }else
               super.updateData(aNewData);
}The problem is , that when the field's getter of inhereted view's class is called from model for updating field,the fields are beeing initialized for second time. they simply somehow are equal to NULL again. I've checked reference to the view and it's the same,but only new fields still equals to NULL from model.
is someone can help me with that?

The only thing that springs to mind is that you're
exporting the newly created fields model object in
the superclass constructor (at least I assume that's
what the registry calls do).
That can cause problems, especially in a
multi-threaded environment (though it's often
tempting). Again there's a risk that the
partly-initialized object may be used.
Actually this is a bit of a weakness of Java as
opposed to C++. In C++ a new object has the virtual
method table set to the superclass VMT during
superclass initialisation. In Java it acquires its
ultimate class indentity immediately.
You'd be safer to extract all that kind of stuff from
the superclass constructor and have some kind of
init() method called after the object was
constructed.
In fact whenever you see a new whose result
you don't do anything with, then you should take it
as a warning.thank you for your replies. ;) I've managed to solve this matter. Simply fully redefined my panel with fields in child-class and added to it's constructor local initialization() method as well, which creates UI of child-class. Even that I initialize UI twice, but all fields are initialized with "lazy initialization" , so there is only once NEW will be called. but there is something weird going in constructors with ovverwritten methods.

Problem with File Upload using SmartUpload class.

Hello.
I need to get a file from client browser. I have HTML form that has mixed data, parameters and files submitted to server. I looked through the forum messages and got the, recommended by many, SmartUpload class. The problem is: when I call SmartUpload.upload() method my system hangs. It takes forever to download a file that is 20Kb. Below is the code from my source:
SmartUpload su = new SmartUpload();
su.initialize(getServletConfig(), req, res);
su.upload(); <--- It stops right here forever...
Enumeration enum = su.getRequest().getParameterNames();
I tried the com.oreilly.servlet.multipart.MultipartParser class, also mentioned in forum messages. I used exactly the same html page to submit the same file and other parameters. It worked just fine. The only reason I need SmartUpload class is because it has getParameterValues(�) method that returns String array of values.
Do you have any idea what is going on? If you know how to get array of values and file(s) without using SmartUpload from a html page, please help me with it.
Thank you for any suggestions.

I looked at MultipartRequest class before but the problems is that it saves upload file directly to disk (push technology). I need to save this file into an XML database, using InputStream, (the upload file is normally xml document or an image).

Problem with outer joins and the class indicator/discriminator

Hello,
I am having a problem defining a query in toplink (10.1.3.3).
In the workbench, I have created a parent and 2 child descriptors. The parent is "AbstractValue", the children are "DefaultValue", classified by the discriminator 'DEF', and "OverrideValue", classified by 'OVR', both located in the same table.
Another descriptor (containing a one-on-one mapping to both a "DefaultValue", and a "OverrideValue") needs to be queried for its 'value'.
The way the query should act is: If an override value (row) exists, this one applies for that object. If an override doesn't exist, return the default value.
The query then comes down to (as I have it now):
builder.getAllowingNull("OverrideValue").getAllowingNull("value").ifNull(builder.get("DefaultValue").get("value")).equal(builder.getParameter(VALUE_PARAM));
The problem is that toplink adds the distinction for the different kind of "values" in the where clause WITHOUT checking for null values e.g. it performs an outer join, but then still checks for the discriminator value thus
....t1.ovr_id = t2.id(+) AND t2.discriminator = 'OVR' AND ...
instead of
... LEFT JOIN values t2 ON (t1.ovr_id = t2.id AND t2.discriminator = 'OVR') ...
This leads to the behaviour that the query returns ONLY the objects that have override and default values.
An overview of the queries (simplified)
Toplink, at the moment, returns only results if both override and default values exists:
SELECT t1.id
t1.def_id,
t1.ovr_id
FROM values t2,
parameter t1,
values t0
WHERE nvl(t2.value, t0.value) = 15 AND
t1.ovr_id = t2.id(+) AND t2.discriminator = 'OVR' AND
t1.def_id = t0.id AND t0.discriminator = 'DEF'
Situation Wanted:
SELECT t1.id
t1.def_id,
t1.ovr_id
FROM parameter t1
LEFT JOIN values t2 ON (t1.ovr_id = t2.id AND t2.discriminator = 'OVR')
JOIN values t0 ON (t1.def_id = t0.id AND t0.discriminator = 'DEF')
WHERE nvl(t2.value, t0.value) = 15
Anyone know if there is some statement I am missing to allow an actual outer join on descriptors containing class indicators/discriminators? A possible rewrite?
Thanks in advance,
Rudy

This is a bug in TopLink's outer join support for Oracle. Currently the outer join is put in the where clause, instead of the from clause, as we do on other platforms. You might be able to fix it by changing your OraclePlatform to return false for shouldPrintOuterJoinInWhereClause().
Please log this bug on EclipseLink, or through Oracle technial support.
There is a workaround using,
descriptor.getInhertiancePolicy().setAlwaysUseOuterJoinForClassType(true);
James : http://www.eclipselink.org

Problem with final variables and inner classes

variables accessed by inner classes need to be final. Else it gives compilation error. Such clases work finw from prompt. But when I try to run such classes through webstart it gives me error/exception for those final variables being accessed from inner class.
Is there any solution to this?
Exception is:
java.lang.ClassFormatError: com/icorbroker/fx/client/screens/batchorder/BatchOrderFrame$2 (Illegal Variable name " val$l_table")
     at java.lang.ClassLoader.defineClass0(Native Method)
     at java.lang.ClassLoader.defineClass(ClassLoader.java:502)
     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
     at com.sun.jnlp.JNLPClassLoader.defineClass(Unknown Source)
     at com.sun.jnlp.JNLPClassLoader.access$1(Unknown Source)
     at com.sun.jnlp.JNLPClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
     at com.icorbroker.fx.client.screens.batchorder.BatchOrderFrame.<init>(BatchOrderFrame.java:217)
     at com.icorbroker.fx.client.screens.batchorder.BatchOrderViewController.createView(BatchOrderViewController.java:150)
     at com.icorbroker.fx.client.screens.RealTimeViewController.initialize(RealTimeViewController.java:23)
     at com.icorbroker.fx.client.screens.batchorder.BatchOrderViewController.<init>(BatchOrderViewController.java:62)
     at com.icorbroker.fx.client.screens.displayelements.DisplayPanel$3.mousePressed(DisplayPanel.java:267)
     at java.awt.Component.processMouseEvent(Component.java:5131)
     at java.awt.Component.processEvent(Component.java:4931)
     at java.awt.Container.processEvent(Container.java:1566)
     at java.awt.Component.dispatchEventImpl(Component.java:3639)
     at java.awt.Container.dispatchEventImpl(Container.java:1623)
     at java.awt.Component.dispatchEvent(Component.java:3480)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3450)
     at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3162)
     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3095)
     at java.awt.Container.dispatchEventImpl(Container.java:1609)
     at java.awt.Window.dispatchEventImpl(Window.java:1590)
     at java.awt.Component.dispatchEvent(Component.java:3480)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:450)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:197)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)

I've also been having the same problem. The only work-around seems to be to slightly change the code, recompile & hope it works. See http://forum.java.sun.com/thread.jsp?forum=38&thread=372291

Problem with cz.dhl.ftp.Ftp.class

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