[SOLVED] problem in building jar

[pranav13]

hi all
recently i started working with java. i have developed a desktop app using swings in NetBeans IDE. It has 5 classes, a text file and an image. It is working fine in the IDE. but when i create a jar and double click it or run it from console it is giving an error saying that FileNotFoundException.
Actually, im reading License info from the txt file in the proj.


pls help me out!


thanks in advance

[Eranga]

Which files is cannot find? Is it there in the correct place when you build the jar.

[pranav13]

im using a text file wch consists of some text(like license agreement). im reading it from my class n fill uit in a textarea.
i 've used the following code to access the file. but invain.

String myFile = getClass().getResource("/myproj/resources/License.txt");

it is working fine in the NetBeans IDE. But after building jar file, i cud nt run it( both from console and windows, by dbl clicking).

[Eranga]

Which jar file you use, jar inside dist folder of the project? Can you run it in the same location?

[Norm]

See #13 below

[Eranga]

Rather using the full path, try it with reference path. I mean something like,

./resources/License.txt

Actually it's depends on where your folders are located, or from where you those resources are used.

[sameh_ammar]

gooood thanks for all

[Eranga]

Is it working now?

[pranav13]

im using the reference path, like /setup/resources/license.txt
while i was trying to run the jar file in dist folder im gettin sm path err. i came 2 kno abt this err when i run it from cmd prompt.

[Norm]

im gettin sm path err. i came 2 kno abt this err

Could you translate this to normal English?
If you get errors, copy and paste the FULL TEXT without edits.

[pranav13]

sorry! please don't mind. I am habituated to that kind. thats why i have typed like that.
Thank you very much for your quick reply to my query.

i think this is because of path error.
I have used the following for getting the file name.

this.getClass().getResource("/mysetupwizard/resources/License.txt").toString().replace("%20", " ").substring(6);

I am not sure about this is the correct way to use files in the project or not? Please let me know the correct method to get file.


The error message is as follows. please go through it and tell me a solution.

java -jar "C:\Documents and Settings\trapranav\My Documents\NetBeansProjects\MySetupWizard\dist\MySe tupWizard.jar"

ERROR: java.io.FileNotFoundException: le:\C:\Documents and Settings\trapranav\My
Documents\NetBeansProjects\MySetupWizard\dist\MySe tupWizard.jar!\mysetupwizard\
resources\License.txt (The filename, directory name, or volume label syntax is i
ncorrect)
Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: bad p
osition: 1
at javax.swing.text.JTextComponent.setCaretPosition(J TextComponent.java:
1398)
at mysetupwizard.resources.Step2.<init>(Step2.java:23 )
at mysetupwizard.resources.Step1.jButton2ActionPerfor med(Step1.java:110)

at mysetupwizard.resources.Step1.access$100(Step1.jav a:16)
at mysetupwizard.resources.Step1$2.actionPerformed(St ep1.java:53)
at javax.swing.AbstractButton.fireActionPerformed(Abs tractButton.java:18
49)
at javax.swing.AbstractButton$Handler.actionPerformed (AbstractButton.jav
a:2169)
at javax.swing.DefaultButtonModel.fireActionPerformed (DefaultButtonModel
.java:420)
at javax.swing.DefaultButtonModel.setPressed(DefaultB uttonModel.java:258
)
at javax.swing.plaf.basic.BasicButtonListener.mouseRe leased(BasicButtonL
istener.java:236)
at java.awt.Component.processMouseEvent(Component.jav a:5517)
at javax.swing.JComponent.processMouseEvent(JComponen t.java:3135)
at java.awt.Component.processEvent(Component.java:528 2)
at java.awt.Container.processEvent(Container.java:196 6)
at java.awt.Component.dispatchEventImpl(Component.jav a:3984)
at java.awt.Container.dispatchEventImpl(Container.jav a:2024)
at java.awt.Component.dispatchEvent(Component.java:38 19)
at java.awt.LightweightDispatcher.retargetMouseEvent( Container.java:4212
)
at java.awt.LightweightDispatcher.processMouseEvent(C ontainer.java:3892)

at java.awt.LightweightDispatcher.dispatchEvent(Conta iner.java:3822)
at java.awt.Container.dispatchEventImpl(Container.jav a:2010)
at java.awt.Window.dispatchEventImpl(Window.java:1791 )
at java.awt.Component.dispatchEvent(Component.java:38 19)
at java.awt.EventQueue.dispatchEvent(EventQueue.java: 463)
at java.awt.EventDispatchThread.pumpOneEventForHierar chy(EventDispatchTh
read.java:242)
at java.awt.EventDispatchThread.pumpEventsForHierarch y(EventDispatchThre
ad.java:163)
at java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:157)

at java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:149)

at java.awt.EventDispatchThread.run(EventDispatchThre ad.java:110)



Thanks in advance!

[pranav13]

please tell me the correct way to get the path of files in the project.

[Norm]

...MySetupWizard.jar!\mysetupwizard\resources\Lice nse.txt

This shows the path to the file in the jar file on a windows system.

When you added this file to the jar file, did you preserve its path?
mysetupwizard/resources/License.txt

Look at the contents of the jar file to see if you have the correct path.
You can use WinZip to display it. Or rename it to .zip and open it.

[pranav13]

ya... License.txt is there in the jar file in /mysetupwizard/resources/

can u please tell why it is not coming?

[pranav13]

hi

i got the solution. as i told, its path problem. To access a resource(like txt file), I have used the following code...

int chr;
InputStream is = this.getClass().getResourceAsStream("myTextFile.tx t");
while((chr = is.read()) != -1)
str+=((char) chr);
is.close();
jTextPane1.setText(str);

[pranav13]

hi,
as said, i got the solution and it is working fine in windows.
but when im trying to execute my jar file in linux, it is giving an error as
Null Peer?! Exception

and the form is empty.
i copied the jar file and lib folder to linux and executed.

pls gimme a solution for this!

[Norm]

Is your program reading the file from the jar file or from the disk? To be sure which, have the contents of the file be different for the two locations.

License.txt is there in the jar file in /mysetupwizard/resources/

What program did you use to see the path to the License.txt in the jar file?
There would NOT be a leading / in that display.

Yes it is definitely a path problem. The path used by getResource is not where the file is located in the jar file.

[pranav13]

first of all, Thankyou very much for ur interest in solving my problem.

i havent used any path. i directly gave the file name.
at first, i gave the path relative to root. but now i gave it relative to the class.
this.getClass().getResourceAsStream("myTextFile.tx t");

this solved my problem.

But now, i got a new problem. I cudnt execute this jar in Linux.
It is giving Null Peer?! Exception and displaying an empty form.

pls tell me a solution for this!

[Norm]

Copy and post the FULL text of the error messages including the command line.

i havent used any path

There is ALWAYS a path. It may be empty.

[pranav13]

in shell prompt (in linux)
java -jar mysetupwizard.jar
Null Peer?! Exception

(and an empty form is displayed)

thats it. nothing is happening.
it is not displaying any other error message.