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XWT runnable jar - does not find main.xwt in jar file [message #521902]

Fri, 19 March 2010 08:53

A. Scheucher

Messages: 9
Registered: March 2010

Junior Member

Hello!

We are evaluating with the org.eclipse.e4.xwt.emf.demo project from soyatec to get an first impression of the XWT technology. Everything is working fine, except the execution of a exported runnable jar file.

The generation of the jar file was done with included .jar files and also with .jar files in a lib subfolder with the same result:

java.net.MalformedURLException: Could not open InputStream for URL 'rsrc:demo\main.xwt'
        at org.eclipse.jdt.internal.jarinjarloader.RsrcURLConnection.getInputStream(RsrcURLConnection.java:46)
        at java.net.URL.openStream(URL.java:1009)
        at org.eclipse.e4.xwt.internal.xml.DocumentRoot.openStream(DocumentRoot.java:137)
        at org.eclipse.e4.xwt.internal.xml.ElementManager.load(ElementManager.java:221)
        at org.eclipse.e4.xwt.internal.core.Core.load(Core.java:642)
        at org.eclipse.e4.xwt.internal.core.Core.load(Core.java:633)
        at org.eclipse.e4.xwt.XWTLoader.loadWithOptions(XWTLoader.java:835)
        at org.eclipse.e4.xwt.XWTLoader$1.run(XWTLoader.java:768)
        at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
        at org.eclipse.e4.xwt.XWTLoader.open(XWTLoader.java:762)
        at org.eclipse.e4.xwt.XWTLoader.open(XWTLoader.java:740)
        at org.eclipse.e4.xwt.XWT.open(XWT.java:434)
        at demo.Main.main(Main.java:50)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)

The main.xwt is in the jar file for sure under the folder /demo. So I do not know what's going wrong here.

Any ideas?

Thanks in advance and best regards,
Andreas

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Re: XWT runnable jar - does not find main.xwt in jar file [message #525880 is a reply to message #521902]

Thu, 08 April 2010 07:27

Yves YANG

Messages: 688
Registered: July 2009

Senior Member

Hi,

Sorry for leaving out your post. I just check out the bundle and test it. It
works as expected. Please take care this example is not tested in jar. You
can start it in eclipse workspace via context menu "Run as"-> Java
applciation on Main.java

Regards
Yves YANG
"A. Scheucher" <andreas.scheucher@gmail.com> wrote in message
news:hnve26$11k$1@build.eclipse.org...
> Hello!
>
> We are evaluating with the org.eclipse.e4.xwt.emf.demo project from
> soyatec to get an first impression of the XWT technology. Everything is
> working fine, except the execution of a exported runnable jar file.
>
> The generation of the jar file was done with included .jar files and also
> with .jar files in a lib subfolder with the same result:
> java.net.MalformedURLException: Could not open InputStream for URL
> 'rsrc:demo\main.xwt'
> at
> org.eclipse.jdt.internal.jarinjarloader.RsrcURLConnection.ge tInputStream(RsrcURLConnection.java:46)
> at java.net.URL.openStream(URL.java:1009)
> at
> org.eclipse.e4.xwt.internal.xml.DocumentRoot.openStream(Docu mentRoot.java:137)
> at
> org.eclipse.e4.xwt.internal.xml.ElementManager.load(ElementM anager.java:221)
> at org.eclipse.e4.xwt.internal.core.Core.load(Core.java:642)
> at org.eclipse.e4.xwt.internal.core.Core.load(Core.java:633)
> at org.eclipse.e4.xwt.XWTLoader.loadWithOptions(XWTLoader.java: 835)
> at org.eclipse.e4.xwt.XWTLoader$1.run(XWTLoader.java:768)
> at
> org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:332)
> at org.eclipse.e4.xwt.XWTLoader.open(XWTLoader.java:762)
> at org.eclipse.e4.xwt.XWTLoader.open(XWTLoader.java:740)
> at org.eclipse.e4.xwt.XWT.open(XWT.java:434)
> at demo.Main.main(Main.java:50)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce ssorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe thodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(J arRsrcLoader.java:58)
>
> The main.xwt is in the jar file for sure under the folder /demo. So I do
> not know what's going wrong here.
>
> Any ideas?
>
> Thanks in advance and best regards,
> Andreas
>

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Re: XWT runnable jar - does not find main.xwt in jar file [message #528635 is a reply to message #521902]

Wed, 21 April 2010 10:45

A. Scheucher

Messages: 9
Registered: March 2010

Junior Member

Hi!

Thanks for your answer! I used the "Run as -> Java App" of courde to develop and test. Actually to play around a bit, not more.

But when it comes to deployment, this will not be sufficient Wink

After playing around a bit more with this problem, we realised an possible solution is to place the .xwt files outside the jar in the same direcotry structure and add the '.' folder to the classpath. Is this an issue of the XYZ.class.getResource(...) method in general? I thought it's possible to load resources inside a jar file with it! Maybe this was the underlying problem.

greets,
Andreas

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Re: XWT runnable jar - does not find main.xwt in jar file [message #528829 is a reply to message #528635]

Thu, 22 April 2010 01:57

Yves YANG

Messages: 688
Registered: July 2009

Senior Member

"A. Scheucher" <andreas.scheucher@gmail.com> wrote in message
news:hqml0r$n1q$1@build.eclipse.org...
> Hi!
>
> Thanks for your answer! I used the "Run as -> Java App" of courde to
> develop and test. Actually to play around a bit, not more.
>
> But when it comes to deployment, this will not be sufficient ;)
>
> After playing around a bit more with this problem, we realised an possible
> solution is to place the .xwt files outside the jar in the same direcotry
> structure and add the '.' folder to the classpath. Is this an issue of the
> XYZ.class.getResource(...) method in general? I thought it's possible to
> load resources inside a jar file with it! Maybe this was the underlying
> problem.

Embedding the XWT resource in jars are static UI. You can generate it in
runtime, or load from anywhere.

Best regards
Yves YANG
>
> greets,
> Andreas

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