Re: java.lang.NoClassDefFoundError with JamVM

[Richard S. Hall]

First of all, you really should try to build from trunk since there were 
significant changes since 0.8.0...if you cannot build from trunk, I 
could email you a build if necessary.

Perhaps you can try to create another bundle that illustrates the same 
issue?

I would imagine that if it worked with Oscar on the same VM that it 
should be possible to get it to work on Felix and that VM, but it is 
difficult for us to help you if you cannot give us any information. :-)

-> richard

Konstantinos N. Ntermitzoglou wrote:
Hi,
   I am using Felix version 0.8.0.
Richard, I am really sorry but I can not provide this information 
because the bundle(s) code I use is under a NDA. However, I am now 
pretty convinced that it is not a Felix or bundle (manifest) problem 
after all. I have used jamVM on the same machine I used the Sun JRE 
and I get the same error. So, it probably has to do with my VM's 
configuration (or maybe the Classpath? ) and the, obviously modified 
in Felix, class loading mechanism. On the other hand, all my other 
bundles seem to work just fine and that is what really confuses me...
Thank you all for your replies, if you have any idea even with my 
limited information I will be glad to hear,
regards,

Kostas

Karl Pauls wrote:
and maybe tell us with which version of Felix you've been trying
(0.8.0 or trunk - if trunk which revision/date)?

regards,

Karl

On 6/21/07, Richard S. Hall <[EMAIL PROTECTED]> wrote:
Yes.

The biggest issue in switching from Oscar to Felix is that Felix
generally does NOT give bundles access to anything on the class path,
whereas Oscar gave them access to everything on the class path. 
However,
if you tested this bundle on Felix with the Sun JRE and it worked, then
that is odd.

Could you show us your expection, manifest, and bundle content?

-> richard

Felix Meschberger wrote:
> Hi,
>
> NoClassDefFoundError generally indicates a missing class to which a
> class to
> be loaded should be linked. For example, if you load the StringBuffer
> class,
> the String class is required for linking. If the String class would
> not be
> found, the NoClassDefFoundError is thrown - whereas a
> ClassNotFoundException
> would be thrown if the StringBuffer class itself was not found.
>
> So, in your use case, it might be, that there are missing classes
> expected
> from the environment (system classes, boot class path or other 
bundles),
> which are missed. You might want to check the
> org.osgi.framework.system.packages and
> org.osgi.framework.bootdelegationproperties of the Felix
> configuration.
>
> Regards
> Felix
>
> On 6/21/07, Konstantinos N. Ntermitzoglou 
<[EMAIL PROTECTED]>
> wrote:
>>
>> Hi everybody,
>>
>>     I have recently moved from Oscar to Felix, but I am facing the
>> following issue that keeps me from doing it totally. I have an API
>> bundle and another one that implements it. I have been using them 
with
>> Oscar under an arm-linux architecture with JamVM1.4.5, classpath 
0.92
>> and  all worked  just fine. The same configuration  will not 
work  with
>> Felix. When I start the implementer bundle, it seems that the 
wiring is
>> done correctly but when the time comes for an API class to be 
loaded I
>> am getting java.lang.NoClassDefFoundError. I have used the exact 
same
>> configuration on an i686-linux with SUN's JVM and then the bundle 
was
>> started successfully.
>> So I believe my bundles are R4 compatible and are bundled correctly
>> (Manifest import-export etc. ), so what can it be wrong ? Any 
ideas how
>> to solve it ?
>>
>> Thank you in advance for any replies,
>> Ntermitzoglou Konstantinos
>>
>