Images in .jar file , "NullPointerException"

Hi,
How do I show images which are present in .jar file.
e.g
Toolkit tKit = Toolkit.getDefaultToolkit();
URL logo = MyTool.class.getResource("images/icon.gif");
Image g1=tKit.getImage(logo);
this.setIconImage(globalleafs1);
this works both in c:\java MyTool
and while created in a .jar file
But when I use it for ImageIcon in a button, I get "NullPointerException" while working in a .jar file.
Here are the methods that I have tried to get it worked
1.
new2 = new JButton(new ImageIcon(ClassLoader.getResource("images/new.gif")));
2.
URL newim = MyTool.class.getResource("images/new.gif");
new2 = new JButton(new ImageIcon(newim));
But it too dont work. Please help me.

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Problem loading image from jar file referenced by jar file

First, I searched this one and no, I didn't find an answer. Loading images from jar files has been pretty much done to death but my problem is different. Please read on.
I have my application, a straight up executable running from Eclipse. It uses a jar file, call it JarA. JarA launches a GUI that is located in another jar file. Call it JarB. To recap:
My application calls JarA -> JarA loads classes from JarB -> JarB looks for images to place in a GUI it wants to show on the screen
When JarB goes to load an image the following happens:
java.lang.NullPointerException
     at sun.misc.URLClassPath$3.run(URLClassPath.java:316)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.misc.URLClassPath.getLoader(URLClassPath.java:313)
     at sun.misc.URLClassPath.getLoader(URLClassPath.java:290)
     at sun.misc.URLClassPath.findResource(URLClassPath.java:141)
     at java.net.URLClassLoader$2.run(URLClassLoader.java:362)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findResource(URLClassLoader.java:359)
     at java.lang.ClassLoader.getResource(ClassLoader.java:977)
     at org.cubrc.gmshell.gui.MainWin.preInit(MainWin.java:152)
     at org.cubrc.gmshell.gui.MainWin.<init>(MainWin.java:135)
The code from JarB that loads the image looks like this:
          URL[] oSearch = {Main.class.getResource("images/")};
          URLClassLoader oLoader = new URLClassLoader(oSearch);
          imgIcon = new ImageIcon(oLoader.getResource("icon.gif"));
          imgMatchRunning = new ImageIcon(oLoader.getResource("gears.gif"));
          imgMatchStill = new ImageIcon(oLoader.getResource("gears-still.gif"));
          imgMagnify = new ImageIcon(oLoader.getResource("magnify.gif"));This looks right to me and JarB certainly has an images directory with those files. But I'm in hell right now because I don't know where to place the images to make this work or if you can even attempt to load images with a dependency chain like this.
Any help very appreciated!

Have you tried to move your image-files out of the jar file and place them in the sam folder as the jar-file? I think that would help.
When you try to load the image-file you get the NullPointerException because the program tries to read a file it can't find. Remember that a jar file IS a file and not a directory.
If you want to read somthing inside the jar-file you need to encode it first.
Have you tried to read the jar-file with winRar. It makes it easy to add and remove files in your jar-file.

Applet : How to use Images in Jar file

I want to put all images into a jar file to improve speed of loading.
But how to invoke images from Jar file?
Thanks.

@Op. It's very important for a developer to know how to find information, and that skill usually comes with experience. Google is one of the best ways to find information and solutions to the most common problems.
Kaj

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Check this article in ADF code corner:
http://www.oracle.com/technetwork/developer-tools/adf/learnmore/86-images-from-jar-427953.pdf
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I am having a very difficult time being able to read images from a JAR file via my Applet. I have tried everything that I know about with no luck. The only way I can get this to work is to store the images individually in a sub directory of public_html on the websever. This works, but I would like the images to come down in a JAR file for performance reasons.
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once in a jar file i inserted a image
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Images in Jar files

Hi,
I am creating a recipe book application. Everything is exactly how I want to so I am trying to make a jar file with it.
On the first screen that loads there is one image, when I make the jar file it doesn't seem to be able to find the image once I am outside of eclipse and running the jar.
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import java.awt.*;
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     public static void main(String args[]){
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ImageIcon ii = new ImageIcon(getClass().getResource("resources/RecipeMagic1_5"));Any insight on how to get the image from inside of the jar file would be great
Forgot to add, it either throws a NullPointerException or a FileNotFoundException in the catch clause of addPic()
Edited by: tyelford on Dec 15, 2010 11:46 AM

Ok, so it works good on Mac, but if I try to use it on Windows it will not load the image,
Here is the code that works on Mac but not windows:
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               if(System.getProperty("os.name").contains("Windows")){
                    imgLocal = "resources\\RecipeMagic1_5\\RecipeMagic1_5.gif";
               else
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Does anybody know what is the reason of my problem??
I created a package called test in my eclipse env. and in that package I placed folder named graph in which there is a file Help.png.
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I've got a severe problem when deploying an application via web start:
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http://forum.java.sun.com/thread.jspa?threadID=396363
http://forum.java.sun.com/thread.jspa?threadID=465795&messageID=2141351
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Length    Date    Time    Name
      0 10-28-05 17:27   hu/
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Hello,
The code is too big to post, I am adding the code that is required to get changed, please see it
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Images in .jar file , "NullPointerException"

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