Yup, a Jar question

i have really really tried to answer this question.
i searched the forums. i read the api.
so please, haha, please help.
i know jar questions dont typically get a warm reception.
I have a folder containing a couple folders and one jar file.
Images/
Data/
MyApp.jar
i cannot access the images in the Images folder.
im getting this error:
Resource not found: /Images/ToolBar/pic.gif
Uncaught error fetching image:
java.lang.NullPointerException
at sun.awt.image.URLImageSource.getConnection(URLImageSou
9)
at sun.awt.image.URLImageSource.getDecoder(URLImageSource
at sun.awt.image.InputStreamImageSource.doFetch(InputStre
rce.java:248)
at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java
at sun.awt.image.ImageFetcher.run(ImageFetcher.java:136)
this is the code i use to load images:
String imgLocation = "Images/ToolBar/" + imageName + ".gif";
URL imageURL = MyClass.class.getResource(imgLocation);i also tried it with a "/" before "Images" in the code.
I tried adding the folder to the manifests classpath.
I also tried knocking on wood and counting sheep.

the way my computer is configured i never use "-cp . " when
running a java program.
it usually uses the present directory as the class path.
but i have looked into that (maybe im doing it wrong).
im running "java -jar MyApp.jar" from the command-line (in XP)
from the directory that holds the .jar and the Images/ folder.
i tried "java -cp . -jar..."
i also tried putting the class path in the manifest file but every\ytime
i did that i got "no class in main" error.
if C:\My\Program contains MyApp.jar and directory Images/
Class-Path: C:\My\Program\Images
didnt work
Class-Path: C:\My\Program ; C:\My\Program\Images
didnt work
i tried the / both directions
ive tried countless permutations of this.getclassloader / getclass blah blah also.
every thread gives the class loader as the answer but so far
nothing has worked.
its amazing how many times this question has been asked and
there usually isnt an answer.
im depressed, haha.

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>
OK ... so ... "third party software" is only made
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>
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:) lutha
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>
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Message was edited by:
dfvdfvdfvxfv

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Maybe you should try this:
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Hi maity,
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Hi all.
Sorry about this but I've been searching this forum for the last couple of hours and I still can't figure out why I can't double-click my jar file.
I've 'jarred' my application into a file named parserTTe.jar.
This jar includes a package named parser, wich includes the main class Parser, and several other subpackages.
In the manifest file (created by ant 1.5), there is an entry as follows:
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followed by a couple of blank lines.
The main method of Parser class demands as an argument the path to the file to parse.
Now, if I run the command line java -jar parserTTe.jar pathtosomefile, everything works smoothly.
As the parser does its job, I can watch its verbose flowing in the command line window.
If I double-click the jar file, though, nothing happens and I would expect that a java.lang.ArrayIndexOutOfBounsException would be thrown, as it does when I simply run java parser.Parser.
If instead of double-clicking the jar, I run the command line parserTTe.jar pathtosomefile or just parserTTe.jar, still nothing happens, the command line just refreshes.
My WNT is set to recognize jar files as Executable Jar Files and the open action is set as follows:
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And where do you expect that argument to come from if
you double-click to run the class? That's why you are
getting the array index exception, because your class
is being called with no parameters. You need to
redesign your class so that it prompts the user for
the file name; and since it's being run via javaw.exe,
it will have to use a GUI to prompt. A JFileChooser
would be a good choice.Please look closer to my description: I said I'd be expecting that exception to be thrown because of what you say but the problem is that it doesn't.
In fact, nothing happens when I double click it, or when I run it directly from the command line, passing along the needed argument or not.
Let us forget about the double-clicking that I won't use anyway.
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Like I explained, I thought it could be something related with the javaw.exe so I set WNT to open jar files with java.exe and not javaw.exe.
The double-clicking resulted in a DOS Prompt window that opened and closed before I could see what happened. So I thought: it's ok. It threw an exception because no argument was passed.
Then I tried to run the jar from the command line passing the argument but the exception was thrown again, though, wich I didn't understand why.
Basically, that's it.
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