[wildfly-dev] Swarm "Could not find or load main class"

Bob McWhirter bmcwhirt at redhat.com
Wed May 6 09:24:05 EDT 2015


Plugin seems to be constructing the jar with backwards slashes?

org\jboss\modules\Util.class

	-Bob


> On May 6, 2015, at 9:22 AM, Markus Eisele <myfear at web.de> wrote:
> 
> Here it is:
> 
> https://www.dropbox.com/s/9n57o55gqvt0u21/swarm-sample-1.0-SNAPSHOT-swarm.jar?dl=0
> 
> Thanks for looking into it!
> 
> Cheers,
> Markus
> 
> On 6 May 2015 at 14:51, Ken Finnigan <ken at kenfinnigan.me> wrote:
>> Can you upload the generated jar somewhere?
>> 
>> Then I could take a closer look
>> 
>> Thanks
>> Ken
>> 
>> On Wed, May 6, 2015 at 8:45 AM, Markus Eisele <myfear at web.de> wrote:
>>> 
>>> Hi,
>>> 
>>> The output doesn't contain a single org.jboss class being loaded. Also it
>>> does not contain the jar itself.
>>> So,  technically speaking this can't work. But why? The command isn't
>>> exactly complicated.
>>> 
>>> Any further ideas?
>>> Thanks,
>>> Markus
>>> 
>>>> On May 6, 2015 2:12 PM, "Jaikiran Pai" <jai.forums2013 at gmail.com> wrote:
>>>>> 
>>>>> A quick debugging option is to try:
>>>>> 
>>>>> java -verbose:class -jar swarm-sample-1.0-SNAPSHOT-swarm.jar
>>>>> 
>>>>> That will dump out some information of where the classes are being
>>>>> loaded from. It might give a hint on what's going on. You might want to
>>>>> redirect the output to a file since with that -verbose:class option, the
>>>>> output can potentially be huge.
>>>>> 
>>>>> -Jaikiran
>>>>> On Wednesday 06 May 2015 04:22 PM, Markus Eisele wrote:
>>>>>> 
>>>>>> It is around 30 Meg and does contain the class. Indeed.
>>>>>> I have a pretty straight forward JDK setup and tried to run with both
>>>>>> 1.7.0_65 and 1.8.0_20.
>>>>>> Only difference is that I run on Windows?
>>>>>> Is the maven version an issue? I'm running 3.3.3?
>>>>>> 
>>>>>> 
>>>>>> Anything I can do to provide more debug information?
>>>>>> 
>>>>>> Cheers,
>>>>>> 
>>>>>> Markus
>>>>>> 
>>>>>> 
>>>>>> On May 6, 2015 12:40 PM, "Ken Finnigan" <ken at kenfinnigan.me> wrote:
>>>>>>> 
>>>>>>> Hi Markus,
>>>>>>> 
>>>>>>> That's weird, as I was able to clone your repo, build it, and run it
>>>>>>> without any problems.
>>>>>>> 
>>>>>>> Is your fat jar around 30.1Mb in size? Does
>>>>>>> org.wildfly.swarm.bootstrap.Main exist in that jar?
>>>>>>> 
>>>>>>> Thanks
>>>>>>> Ken
>>>>>>> 
>>>>>>> 
>>>>>>> On Wed, May 6, 2015 at 6:17 AM, Markus Eisele <myfear at web.de> wrote:
>>>>>>>> 
>>>>>>>> Hi,
>>>>>>>> 
>>>>>>>> I've been playing around with swarm today and here is the source:
>>>>>>>> https://github.com/myfear/WildFlySwarmDemo
>>>>>>>> 
>>>>>>>> Very simple project. JAX-RS and nothing else.
>>>>>>>> 
>>>>>>>> mvn package produces the jar. Execution results in:
>>>>>>>> 
>>>>>>>> java -jar swarm-sample-1.0-SNAPSHOT-swarm.jar
>>>>>>>> Error: Could not find or load main class
>>>>>>>> org.wildfly.swarm.bootstrap.Main
>>>>>>>> 
>>>>>>>> Any help appreciated!
>>>>>>>> 
>>>>>>>> Thanks,
>>>>>>>> M
>>>>>>>> 
>>>>>>>> ____________
>>>>>>>> @myfear
>>>>>>>> http://blog.eisele.net
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>>>>>>>> wildfly-dev mailing list
>>>>>>>> wildfly-dev at lists.jboss.org
>>>>>>>> https://lists.jboss.org/mailman/listinfo/wildfly-dev
>>>>>>> 
>>>>>>> 
>>>>>> 
>>>>>> 
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>>>>> 
>>>>> 
>>>>> 
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