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From Bjorn Roche <bj...@xowave.com>
Subject Re: java.lang.NoClassDefFoundError: com/apple/eawt/ApplicationListener
Date Thu, 30 Dec 2010 15:23:06 GMT

On Dec 30, 2010, at 9:26 AM, Richard S. Hall wrote:

> On 12/30/10 7:50, Bjorn Roche wrote:
>> On Dec 29, 2010, at 8:51 AM, Richard S. Hall wrote:
>>> On 12/29/10 0:20, Bjorn Roche wrote:
>>>> On Dec 28, 2010, at 8:00 PM, Richard S. Hall wrote:
>>>>>> Well, resources can be put into packages and shared like  
>>>>>> classes via exports...or am I missing something?
>>>>> In this particular example, it looks like the resource is  
>>>>> contained in the same bundle, so what you are doing is fine  
>>>>> since it delegates to the bundle's class loader (which is a  
>>>>> bundle class loader in this), which does the right thing.
>>>>> From first reading your email, I thought you were talking about  
>>>>> shared resources...not resources contained in the bundle.
>>>>> Regardless, resource loading isn't dynamic class loading and  
>>>>> doesn't involve the TCCL, etc. So, this isn't an advanced use  
>>>>> case if this is all you are talking about.
>>>> What I'm trying to do is convert an existing app to a single OSGi  
>>>> bundle and get it to launch that way. Perhaps the length/ 
>>>> complexity/poor explanation of my original email gave you the  
>>>> impression that I was trying to do something more complex, but  
>>>> that's really all I want to do.
>>> It was actually all the talk about class loaders and TCCL that  
>>> raised a red flag. If all your resources are in your bundle, then  
>>> you should only need to ask your class' class loader to find a  
>>> resource. No reason to probe around for other class loaders.
>> I am using the thread context class loader because in a static  
>> context I have nothing else to go on. It looks something like this:
>> class A {
>>    public static final ICON = new ImageIcon(  fetch the resource  
>> data using the TCCL );
>>    ...
>> }
> What do you mean? If A is in a bundle, then just  
> A.class.getResource(), no?

IIRC, that did not work when I was using wrap and assembly, but it's  
also possible that I read somewhere not to do that. I am now trying to  
get your "exploded" bundle suggestion to work... if/when I get that  
working I'll revisit.


Bjorn Roche
Audio Collaboration

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