Qt-jambi-interest Archive, December 2006
JAR creation
Message 1 in thread
Hello,
I think it's not related to Qt Jambi but I didn't find any solution,
sorry to spam the list.
My program is working in eclipse without any problem. So, I created a
JAR file from Eclipse (with a main class).
In a console, I export LD_LIBRARY_PATH, and try to launch the JAR file :
> java -cp /path_to_qtjambi/qtjambi.jar:. -jar program.jar
and I have an error :
> java.langNoClassDefFoundError : com.trolltech.gui.QWidget
> ....
I try to launch it without the jar :
> java -cp /path_to_qtjambi/qtjambi.jar:. org.program.MainClass
and it's working.
Any idea ? How to create a good JAR file ?
Thanks,
Nicolas
PS : sorry, maybe it's a really stupid question...
Message 2 in thread
Hi, Nicolas.
Nicolas Arnaud-Cormos wrote:
> In a console, I export LD_LIBRARY_PATH, and try to launch the JAR file :
> > java -cp /path_to_qtjambi/qtjambi.jar:. -jar program.jar
I think you need to set the Class-Path attribute of your manifest file
to include the .jar-file:
http://java.sun.com/docs/books/tutorial/deployment/jar/downman.html
I haven't used Eclipse for deployment before, so I'm not sure how you
get it to create the correct manifest-file, but it might work if you set
a dependency on the external qtjambi.jar file in your build path?
If you want to do this manually instead, you can simply unpack the
jar-file Eclipse has made (jar xf <filename>), edit the
META-INF/MANIFEST.MF file to set the correct class path, and then bundle
the program again (jar cfm <jarfile> META-INF/MANIFEST.MF
<all-files-to-bundle-separated-by-spaces>)
Hope this helps!
-- Eskil
Message 3 in thread
Hi,
You can not use both -cp and -jar.
Use java -cp /path_to_qtjambi/qtjambi.jar:program.jar:. com.my.class
Tom
Nicolas Arnaud-Cormos schrieb:
> Hello,
>
> I think it's not related to Qt Jambi but I didn't find any solution,
> sorry to spam the list.
>
> My program is working in eclipse without any problem. So, I created a
> JAR file from Eclipse (with a main class).
>
> In a console, I export LD_LIBRARY_PATH, and try to launch the JAR file :
>> java -cp /path_to_qtjambi/qtjambi.jar:. -jar program.jar
>
> and I have an error :
>> java.langNoClassDefFoundError : com.trolltech.gui.QWidget
>> ....
>
> I try to launch it without the jar :
>> java -cp /path_to_qtjambi/qtjambi.jar:. org.program.MainClass
> and it's working.
>
> Any idea ? How to create a good JAR file ?
>
> Thanks,
> Nicolas
>
> PS : sorry, maybe it's a really stupid question...
Message 4 in thread
Hello,
it's just a guess, but I'd assume that you simply need the
executable jar, and that the they'll have the qt-jambi jar in
their default classpath.
Hm...
-Lenny
Tom Schindl schrieb:
> Hi,
>
> You can not use both -cp and -jar.
>
> Use java -cp /path_to_qtjambi/qtjambi.jar:program.jar:. com.my.class
>
> Tom
>
> Nicolas Arnaud-Cormos schrieb:
>> Hello,
>>
>> I think it's not related to Qt Jambi but I didn't find any solution,
>> sorry to spam the list.
>>
>> My program is working in eclipse without any problem. So, I created a
>> JAR file from Eclipse (with a main class).
>>
>> In a console, I export LD_LIBRARY_PATH, and try to launch the JAR file :
>>> java -cp /path_to_qtjambi/qtjambi.jar:. -jar program.jar
>> and I have an error :
>>> java.langNoClassDefFoundError : com.trolltech.gui.QWidget
>>> ....
>> I try to launch it without the jar :
>>> java -cp /path_to_qtjambi/qtjambi.jar:. org.program.MainClass
>> and it's working.
>>
>> Any idea ? How to create a good JAR file ?
>>
>> Thanks,
>> Nicolas
>>
>> PS : sorry, maybe it's a really stupid question...
>
>
>
Message 5 in thread
Hi tom,
> You can not use both -cp and -jar.
>
> Use java -cp /path_to_qtjambi/qtjambi.jar:program.jar:. com.my.class
You are right, thank you.
It's working now.
Nicolas
