🚀 go-pugleaf

Martin Schou wrote:
> First off let me apologize for the crossposting and for the english post to
> a danish newsgroup.
> 
> Below is a stripped version of an applet, I've been trying to get to work
> for the last week or so.
> What it's supposed to do:
> 
> Get some images from the net (duh) and place them with pixel-precision.
> 
> I use the method
>     private Image ReadImageFromURL( String image )
> to return the apropriate image (we can't have inapropriate images in a
> decent program), which basically just uses
>     Applet.getImage(URL url, String name)
> to return the image. It forms the URL from the variables
>     String ImageHost, ImageDirectory
> 
> I can get this to work in AppletViewer, but I'll be a cross eyed monkey, if
> it will work in a browser. This is rather unfortunate, as I need this to
> work in a browser. I will gladly sacrifice my oldest child (at this point in
> time) to anyone who can get this to work in a browser; I will up the ante
> with my youngest child (at this point in time), if the same person can tell
> me why my puny attempt doesn't work like it's supposed to.
> 


What is the problem, except that "its doesn't work"?

Post a link that will run the applet.


> 
> /************************ start of applet ************************/
> /******************* beware forced line breaks *******************/
> import java.applet.Applet;
> 
> import java.awt.Graphics;
> import java.awt.Image;
> import java.awt.Label;
> 
> import java.io.InputStream;
> 
> import java.net.URL;
> 
> public class
> Applet_That_Will_Not_Work_No_Matter_What_I_Try_Which_Is_Why_I_Need_Your_Help
> extends Applet implements /*Helpless_Programmer, Annoying_Piece_Of_Shit*/
> Runnable
>   {
>     Thread RunningThread;
>     Image Buffer;
>     Graphics GraphicsBuffer;
> 
>     String ImageHost = "http://";
>     String ImageDirectory = "/img/";
>     Image Background;
> 
>     public void init()
>       {
>         ImageHost +=  getCodeBase().getHost();
>         setSize( 1013, 609 );
>         Buffer = createImage(size().width,size().height);
>         GraphicsBuffer = Buffer.getGraphics();
>         initImages();
>       }
> 
>     public void start()
>       {
>         if (RunningThread == null)
>           {
>             RunningThread = new Thread (this);
>             RunningThread.start();
>           }
>       }
> 
>     public void stop()
>       {
>         if (RunningThread != null)
>           {
>             RunningThread.stop();
>             RunningThread = null;
>           }
>       }
> 
>     public void run()
>       {
>         while(true)
>           {
>             drawImages();
>             repaint();
>             System.out.println("repaint()");
>             Sleep( 5000 );
>           }
>       }
> 
>     private void Sleep( int time )
>       {
>         try
>           {
>             RunningThread.sleep( time );
>           }
>         catch( InterruptedException e )
>           {
>             e = null;
>           }
>       }
> 
>     public void update(Graphics g)
>       {
>         paint(g);
>       }
> 
>     public void paint(Graphics g)
>       {
>         g.drawImage (Buffer,0,0, this);
>       }
> 
>     private Image ReadImageFromURL( String image )
>       {
>         try
>           {
>             return getImage( new URL( ImageHost ), ImageDirectory + image );
>           }
>         catch( Exception e )
>           {
>             e.printStackTrace();
>             e = null;
>           }
> 
>         return null;
>       }
> 
>     private void drawImage( Image ImageToManipulate, int x_coords, int
> y_coords, int width, int height )
>       {
>         GraphicsBuffer.drawImage(ImageToManipulate, x_coords, y_coords,
> width, height, null);
>       }
> 
>     private void drawImages()
>       {
>         drawImage( Background,               0, 0, 1013, 609 );
>       }
> 
>     private void initImages()
>       {
>         Background       = ReadImageFromURL( "ventilationsanlaeg.png" );
>       }
>   }
> /************************* end of applet *************************/
> 
> And in case you're wondering, no - I don't have any children, which is why
> I'm willing to sacrifice them only at this point in time.
> 
> Sincerely and frustrated
> Martin Schou
> 
> 
> 

Martin Schou wrote:
> First off let me apologize for the crossposting and for the english post to
> a danish newsgroup.
> 
> Below is a stripped version of an applet, I've been trying to get to work
> for the last week or so.
> What it's supposed to do:
> 
> Get some images from the net (duh) and place them with pixel-precision.
> 
> I use the method
>     private Image ReadImageFromURL( String image )
> to return the apropriate image (we can't have inapropriate images in a
> decent program), which basically just uses
>     Applet.getImage(URL url, String name)
> to return the image. It forms the URL from the variables
>     String ImageHost, ImageDirectory
> 
> I can get this to work in AppletViewer, but I'll be a cross eyed monkey, if
> it will work in a browser. This is rather unfortunate, as I need this to
> work in a browser. I will gladly sacrifice my oldest child (at this point in
> time) to anyone who can get this to work in a browser; I will up the ante
> with my youngest child (at this point in time), if the same person can tell
> me why my puny attempt doesn't work like it's supposed to.
> 


What is the problem, except that "its doesn't work"?

Post a link that will run the applet


> 
> /************************ start of applet ************************/
> /******************* beware forced line breaks *******************/
> import java.applet.Applet;
> 
> import java.awt.Graphics;
> import java.awt.Image;
> import java.awt.Label;
> 
> import java.io.InputStream;
> 
> import java.net.URL;
> 
> public class
> Applet_That_Will_Not_Work_No_Matter_What_I_Try_Which_Is_Why_I_Need_Your_Help
> extends Applet implements /*Helpless_Programmer, Annoying_Piece_Of_Shit*/
> Runnable
>   {
>     Thread RunningThread;
>     Image Buffer;
>     Graphics GraphicsBuffer;
> 
>     String ImageHost = "http://";
>     String ImageDirectory = "/img/";
>     Image Background;
> 
>     public void init()
>       {
>         ImageHost +=  getCodeBase().getHost();
>         setSize( 1013, 609 );
>         Buffer = createImage(size().width,size().height);
>         GraphicsBuffer = Buffer.getGraphics();
>         initImages();
>       }
> 
>     public void start()
>       {
>         if (RunningThread == null)
>           {
>             RunningThread = new Thread (this);
>             RunningThread.start();
>           }
>       }
> 
>     public void stop()
>       {
>         if (RunningThread != null)
>           {
>             RunningThread.stop();
>             RunningThread = null;
>           }
>       }
> 
>     public void run()
>       {
>         while(true)
>           {
>             drawImages();
>             repaint();
>             System.out.println("repaint()");
>             Sleep( 5000 );
>           }
>       }
> 
>     private void Sleep( int time )
>       {
>         try
>           {
>             RunningThread.sleep( time );
>           }
>         catch( InterruptedException e )
>           {
>             e = null;
>           }
>       }
> 
>     public void update(Graphics g)
>       {
>         paint(g);
>       }
> 
>     public void paint(Graphics g)
>       {
>         g.drawImage (Buffer,0,0, this);
>       }
> 
>     private Image ReadImageFromURL( String image )
>       {
>         try
>           {
>             return getImage( new URL( ImageHost ), ImageDirectory + image );
>           }
>         catch( Exception e )
>           {
>             e.printStackTrace();
>             e = null;
>           }
> 
>         return null;
>       }
> 
>     private void drawImage( Image ImageToManipulate, int x_coords, int
> y_coords, int width, int height )
>       {
>         GraphicsBuffer.drawImage(ImageToManipulate, x_coords, y_coords,
> width, height, null);
>       }
> 
>     private void drawImages()
>       {
>         drawImage( Background,               0, 0, 1013, 609 );
>       }
> 
>     private void initImages()
>       {
>         Background       = ReadImageFromURL( "ventilationsanlaeg.png" );
>       }
>   }
> /************************* end of applet *************************/
> 
> And in case you're wondering, no - I don't have any children, which is why
> I'm willing to sacrifice them only at this point in time.
> 
> Sincerely and frustrated
> Martin Schou
> 
> 
> 

> What is the problem, except that "its doesn't work"?

Browsers refuse to load the applet, it crashes with no error messages. I
tried sacrificing a chicken and a goat while dancing the sacred dance, but
neither Opera nor Internet Explorer wanted to tell me, why the applet
crashed.

It simply doesn't work.

> Post a link that will run the applet

That would be of little use, since I don't have access to a public server,
where I can place the applet. If, by some magic mumbo jumbo, you can gain
access to my private network without breaking various laws, the applet is
running at
http://192.168.1.39/Applet_That_Will_Not_Work_No_Matter_What_I_Try_Which_Is_
Why_I_Need_Your_Help.html
but I doubt that is of much use.

//Martin Schou

You may already have tried that, but maybe it helps if you go to the
Control Panel, open the Java Plug-in settings, and enable Show Java
Console and Show Exception Dialog Box. IE would probably ignore this
and use its own JVM, but Opera should honor the settings you changed.
I think.

Ingo

On Tue, 12 Feb 2002 10:59:38 +0100, "Martin Schou"
<martin.schou@grue-hornstrup.dk> wrote:

>> What is the problem, except that "its doesn't work"?
>
>Browsers refuse to load the applet, it crashes with no error messages. I
>tried sacrificing a chicken and a goat while dancing the sacred dance, but
>neither Opera nor Internet Explorer wanted to tell me, why the applet
>crashed.
>
>It simply doesn't work.
>
>> Post a link that will run the applet
>
>That would be of little use, since I don't have access to a public server,
>where I can place the applet. If, by some magic mumbo jumbo, you can gain
>access to my private network without breaking various laws, the applet is
>running at
>http://192.168.1.39/Applet_That_Will_Not_Work_No_Matter_What_I_Try_Which_Is_
>Why_I_Need_Your_Help.html
>but I doubt that is of much use.
>
>//Martin Schou
>
>

Seeking a JAVA opportunity in San Diego

"Martin Schou" <martin.schou@grue-hornstrup.dk> writes:

> Browsers refuse to load the applet, it crashes with no error messages. I
> tried sacrificing a chicken and a goat while dancing the sacred dance, but
> neither Opera nor Internet Explorer wanted to tell me, why the applet
> crashed.

Try enabling Java Log in IE before accessing the HTML page
-- 
  Thorbj�rn Ravn Andersen
  http://unixsnedkeren.dk

"Ingo Pakleppa" <ipakleppa@cox.net> wrote in message
news:3c68eb59.5384371@news.west.cox.net...
> You may already have tried that, but maybe it helps if you go to the
> Control Panel, open the Java Plug-in settings, and enable Show Java
> Console and Show Exception Dialog Box. IE would probably ignore this
> and use its own JVM, but Opera should honor the settings you changed.
> I think.

Hmm ... can't get Opera to show the console ... anyways, I got the applet
working in Opera.
javac -target 1.1 appletname.java
helped with that (thank you Lasse Westh-Nielsen)

Now I can't get it running in Internet Explorer. The Console in Explorer
says the following:

java.lang.ClassNotFoundException: java.security.AccessControlException
 at com/ms/vm/loader/URLClassLoader.loadClass
 at java/lang/ClassLoader.loadClassInternal
 at Empty_2.init
 at com/ms/applet/AppletPanel.securedCall0
 at com/ms/applet/AppletPanel.securedCall
 at com/ms/applet/AppletPanel.processSentEvent
 at com/ms/applet/AppletPanel.processSentEvent
 at com/ms/applet/AppletPanel.run
 at java/lang/Thread.run
I don't use java.security.AccessControlException, or anything from the
java.security package, so I guess it's something that is automatically
loaded - but not supported by Internet Explorer? Any ideas as to how to
solve that problem?

Martin Schou

Martin Schou wrote:
> "Ingo Pakleppa" <ipakleppa@cox.net> wrote in message
> news:3c68eb59.5384371@news.west.cox.net...
> 
>>You may already have tried that, but maybe it helps if you go to the
>>Control Panel, open the Java Plug-in settings, and enable Show Java
>>Console and Show Exception Dialog Box. IE would probably ignore this
>>and use its own JVM, but Opera should honor the settings you changed.
>>I think.
>>
> 
> Hmm ... can't get Opera to show the console ... anyways, I got the applet
> working in Opera.
> javac -target 1.1 appletname.java
> helped with that (thank you Lasse Westh-Nielsen)
> 
> Now I can't get it running in Internet Explorer. The Console in Explorer
> says the following:
> 
> java.lang.ClassNotFoundException: java.security.AccessControlException
>  at com/ms/vm/loader/URLClassLoader.loadClass
>  at java/lang/ClassLoader.loadClassInternal
>  at Empty_2.init
>  at com/ms/applet/AppletPanel.securedCall0
>  at com/ms/applet/AppletPanel.securedCall
>  at com/ms/applet/AppletPanel.processSentEvent
>  at com/ms/applet/AppletPanel.processSentEvent
>  at com/ms/applet/AppletPanel.run
>  at java/lang/Thread.run
> I don't use java.security.AccessControlException, or anything from the
> java.security package, so I guess it's something that is automatically
> loaded - but not supported by Internet Explorer? Any ideas as to how to
> solve that problem?
> 


Find out where the applet stops. Insert println statements.

> Find out where the applet stops. Insert println statements.

If I override the constructor and insert a
"System.out.println("constructor");", it prints out constructor and then
throws the exception. It never reaches init(), which has
"System.out.println("init()"); as the very first line, and I have no idea
what is called after the constructor.

//Martin Schou

On Tue, 12 Feb 2002 12:59:31 +0100, "Martin Schou"
<martin.schou@grue-hornstrup.dk> wrote:

>
>"Ingo Pakleppa" <ipakleppa@cox.net> wrote in message
>news:3c68eb59.5384371@news.west.cox.net...
>> You may already have tried that, but maybe it helps if you go to the
>> Control Panel, open the Java Plug-in settings, and enable Show Java
>> Console and Show Exception Dialog Box. IE would probably ignore this
>> and use its own JVM, but Opera should honor the settings you changed.
>> I think.
>
>Hmm ... can't get Opera to show the console ... anyways, I got the applet
>working in Opera.
>javac -target 1.1 appletname.java
>helped with that (thank you Lasse Westh-Nielsen)
>
>Now I can't get it running in Internet Explorer. The Console in Explorer
>says the following:
>
>java.lang.ClassNotFoundException: java.security.AccessControlException
> at com/ms/vm/loader/URLClassLoader.loadClass
> at java/lang/ClassLoader.loadClassInternal
> at Empty_2.init
> at com/ms/applet/AppletPanel.securedCall0
> at com/ms/applet/AppletPanel.securedCall
> at com/ms/applet/AppletPanel.processSentEvent
> at com/ms/applet/AppletPanel.processSentEvent
> at com/ms/applet/AppletPanel.run
> at java/lang/Thread.run
>I don't use java.security.AccessControlException, or anything from the
>java.security package, so I guess it's something that is automatically
>loaded - but not supported by Internet Explorer? Any ideas as to how to
>solve that problem?
>
>Martin Schou

Do other applets work in IE? It looks to me as if the JVM installation
might be messed up.

Seeking a JAVA opportunity in San Diego

> Do other applets work in IE? It looks to me as if the JVM installation
> might be messed up.

Well - depending on what Applet it is, it works more or less fine. IE can
run the applets at java.sun.com/somethingorother just fine, so I'm pretty
sure it's my applet, that isn't behaving like it should.

Of course, I haven't programmed any (and I do mean any) applets before, so
I'm probably just doing something like I always do in a regular java
program, that is a big no no in applets.

On Thu, 14 Feb 2002 13:08:51 +0100, "Martin Schou"
<martin.schou@grue-hornstrup.dk> wrote:

>> Do other applets work in IE? It looks to me as if the JVM installation
>> might be messed up.
>
>Well - depending on what Applet it is, it works more or less fine. IE can
>run the applets at java.sun.com/somethingorother just fine, so I'm pretty
>sure it's my applet, that isn't behaving like it should.
>
>Of course, I haven't programmed any (and I do mean any) applets before, so
>I'm probably just doing something like I always do in a regular java
>program, that is a big no no in applets.

The reason I thought it might be a messed-up IE is twofold: first,
your stack dump said "ClassDefNotFoundException" for a standard Java
class, and second, this apparently happens while trying to throw a
security violation exception. Except that it happens while loading the
init() method, before any of your code is ever executed, so there
should not be a chance for a security violation.

Looking at your stack trace again, I notice something else: it appears
that the method that is called is the wrong init() - in the wrong
class or something like that. It says "Empty_2.init()" where I would
have expected whatever_your_applet_class_name_is.init(). Do you have
an explanation, maybe?

Ingo
Seeking a JAVA opportunity in San Diego