Hi again,
please consider the following scenario (still on felix 0.8.0 *)
I have installed another bundle that uses classes from org.w3c.dom
package. I have tried to run it using SUN jre. The result was a
NoClassDefFoundError for a class of that package. That is correct since
I have not included the package to the org.osgi.framework.bootdelegation
property. The other bundle that I mention to my previous mails that
imports packages from another API bundle, worked just fine.
When I have tried the exact same scenario with jamVM, the bundle
that uses classes from org.w3c.dom worked without throwing any
exception.Moreover, the bundle that imports from the bundle API could
not load classes from that imported packages.
Could it this be a sign that jamVM is incompatible with the delegation
mechanism of Felix? Can I fix it someway ?
Thank you for your time.
regards,
kostas
p.s.
*Richard, I have tried building the trunk version, but I have faced some
trouble. Maybe because I am unfamiliar with Maven... Would it be too
much trouble for you providing me with a built jar version? Thank you in
advance!
Konstantinos N. Ntermitzoglou wrote:
Ok, I will try using the trunk version and see what happens.
If this does not work out either, I shall find a way to provide more
detailed information about my case. Thank you a lot for your concern
:) ,I will keep you posted!
regards,
Kostas
Richard S. Hall wrote:
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
>>
>
