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| Re: Using EMF in a standalone application / Birt Project - IncompatibleClassChangeError [message #558569 is a reply to message #558556] |
Mon, 13 September 2010 14:13  |
 Ed Merks
Messages: 31249
Registered: July 2009 |
Senior Member |
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Kris,
I've not seen such an error. Is the classpath used for compilation
verses the one you use to run different? Likely it's better if you
structure your project as a plugin, let the PDE manage the classpath,
and then run your stand alone application from that.
KW wrote:
> Hi,
>
> in the meantime I found what is causing this error. Due to a bug (*1)
> in Birt I updated birt to 2.6.1 RC1 as mentioned in the bug comments via
>
> http://download.eclipse.org/birt/update-site/2.6-interim/
>
> When I revert this update, the IncompatibleClassChangeError is gone.
>
> However, due to the bug from (*1) I need this version of Birt.
>
> Any idea how to get around this - is the also a interim update site
> for emf which may resolve this problem?
>
> Thanks
> Kris
>
>
>
> (*1) https://bugs.eclipse.org/bugs/show_bug.cgi?format=multiple&a mp;id=318679
>
>
> Am 9/13/10 11:28 AM, schrieb KW:
>> Hi,
>>
>> I am trying to use a EMF model in a Birt Project.
>>
>> According to the EMF book "EMF: Eclipse Modeling Framework, 2nd Edition"
>> (Chapter 20.2 Stand-Alone Applications), I have added the following
>> plugins to the path of the birt project as well as to report bug
>> configuration classpath:
>>
>> org.eclipse.emf.ecore_2.6.1.v20100907-1721.jar
>> org.eclipse.emf.common_2.6.0.v20100907-1721.jar
>>
>> Exactly these plugins are referenced in the modeling project (node
>> "plugin dependencies")
>>
>> During report debugging of the java event handler classes that are
>> hooked in the birt report, I get a
>>
>> java.lang.IncompatibleClassChangeError: Implementing class.
>>
>> This error arises in the line where I try to get an instance of a model
>> class:
>>
>> MyComp c = MyModelFactory.eINSTANCE.createComponent();
>>
>> I am clueless how to go ahead - any idea what may cause the
>> IncompatibleClassChangeError?
>>
>> Thanks
>> Kris
>
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