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problem loading zest classes [message #239967] Tue, 27 November 2007 15:18 Go to next message
ruthie is currently offline ruthieFriend
Messages: 8
Registered: July 2009
Junior Member
Hello friends,

I hope this is the correct place for this post - as I understand this is
the new home for zest...

I am having difficulties activating the Zest plug-in, attempting to run
the example snippet...
I get the following runtime error when instantiating the Graph widget:
"Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad
version number in .class file"
I understand this is a compatibility issue...

I am using:
Windows XP Professional (SP2)
JDK 5.0 Update 14
org.eclipse.swt.win32.win32.x86_3.3.2.v3347a.jar
org.eclipse.swt_3.3.2.v3347.jar
org.eclipse.draw2d_3.2.100.200707131144.jar
org.eclipse.mylyn.zest.core_0.5.0.0.jar (from
org.eclipse.org/mylyn/zest.php)
org.eclipse.mylyn.layouts_0.5.0.0.jar (from org.eclipse.org/mylyn/zest.php)

Are there specific versions of the plugins/jre that I should be using?

Any other ideas?

Thanks in advance,
Ruthie
Re: problem loading zest classes [message #240176 is a reply to message #239967] Thu, 06 December 2007 00:41 Go to previous messageGo to next message
Eclipse UserFriend
Originally posted by: irbull.cs.uvic.ca

I thgouht I built the jars to work on Java 1.4, but obviously they
don't. Can you try checking the code out from head (from
dev.eclipse.org/tools/gef/plugins and then get the two zest plugins),
and let me know if that works.

In the meantime I will test the version 0.5 with an older vm and see if
I can reproduce these errors.

cheers,
ian


Ruthie wrote:
> Hello friends,
>
> I hope this is the correct place for this post - as I understand this is
> the new home for zest...
> I am having difficulties activating the Zest plug-in, attempting to run
> the example snippet...
> I get the following runtime error when instantiating the Graph widget:
> "Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad
> version number in .class file"
> I understand this is a compatibility issue...
>
> I am using:
> Windows XP Professional (SP2)
> JDK 5.0 Update 14
> org.eclipse.swt.win32.win32.x86_3.3.2.v3347a.jar
> org.eclipse.swt_3.3.2.v3347.jar
> org.eclipse.draw2d_3.2.100.200707131144.jar
> org.eclipse.mylyn.zest.core_0.5.0.0.jar (from
> org.eclipse.org/mylyn/zest.php)
> org.eclipse.mylyn.layouts_0.5.0.0.jar (from org.eclipse.org/mylyn/zest.php)
>
> Are there specific versions of the plugins/jre that I should be using?
>
> Any other ideas?
>
> Thanks in advance,
> Ruthie
>
>
Re: problem loading zest classes [message #240181 is a reply to message #240176] Thu, 06 December 2007 00:51 Go to previous messageGo to next message
Eclipse UserFriend
Originally posted by: irbull.cs.uvic.ca

Ok, I can reproduce your results. I build a new jar from head (with the
proper 1.4 settings) and everything works. We are hoping to get a build
of Zest out with M4 (next week) but if that doesn't happen, I will make
an integration build available for you. The other option is to try zest
from head.

Thanks,
ian

Ian Bull wrote:
> I thgouht I built the jars to work on Java 1.4, but obviously they
> don't. Can you try checking the code out from head (from
> dev.eclipse.org/tools/gef/plugins and then get the two zest plugins),
> and let me know if that works.
>
> In the meantime I will test the version 0.5 with an older vm and see if
> I can reproduce these errors.
>
> cheers,
> ian
>
>
> Ruthie wrote:
>> Hello friends,
>>
>> I hope this is the correct place for this post - as I understand this
>> is the new home for zest...
>> I am having difficulties activating the Zest plug-in, attempting to
>> run the example snippet...
>> I get the following runtime error when instantiating the Graph widget:
>> "Exception in thread "main" java.lang.UnsupportedClassVersionError:
>> Bad version number in .class file"
>> I understand this is a compatibility issue...
>>
>> I am using:
>> Windows XP Professional (SP2)
>> JDK 5.0 Update 14
>> org.eclipse.swt.win32.win32.x86_3.3.2.v3347a.jar
>> org.eclipse.swt_3.3.2.v3347.jar
>> org.eclipse.draw2d_3.2.100.200707131144.jar
>> org.eclipse.mylyn.zest.core_0.5.0.0.jar (from
>> org.eclipse.org/mylyn/zest.php)
>> org.eclipse.mylyn.layouts_0.5.0.0.jar (from
>> org.eclipse.org/mylyn/zest.php)
>>
>> Are there specific versions of the plugins/jre that I should be using?
>>
>> Any other ideas?
>>
>> Thanks in advance,
>> Ruthie
>>
>>
Re: problem loading zest classes [message #240224 is a reply to message #240181] Mon, 10 December 2007 05:32 Go to previous message
Eclipse UserFriend
Originally posted by: elahe_1982.yahoo.com

Hi,

I think you should try it with Java 1.6.
I remember when I started, I got the same message and the change to Java
1.6 solved the rpoblem.
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