For the record, I have created
https://issues.apache.org/jira/browse/STANBOL-667
and yes, the way I read it it's a blocker. Not only I cannot go on with
my work without it, but people and potential new adopters have seen this
running successfully during the last Workshop and they expect to be able
to use it tomorrow.
This is definitely a build management issue. No need to be an ontology
or reasoning expert to see that there is a problem.
Best,
--Alessandro
On 6/22/12 9:56 AM, Alessandro Adamou wrote:
Thanks Rupert,
On 6/22/12 2:28 AM, Rupert Westenthaler wrote:
Hi
Making this change
[...]
allowed me to start the hermit Bundle in a Stanbol launcher running
trunk.
I had tried that too. The bundle would start but not the component
org.apache.stanbol.reasoners.hermit.HermitReasoningService
Did it start for you?
So apparently yes, that exports are needed...
Anyway, here's a funny update:
I took the hermit module from the trunk and made it reference the
parent POM 0.9.0-incubating instead of the 2-incubating-SNAPSHOT
and with this change only both the bundle and component started, and
the reasoner seemed to work (you have to at least go to the
reasoners/owl2/enrich endpoint and see if it throws an exception).
So it seems to be a problem with the new parent
But I'll need someone to confirm me this, please?
Alessandro
On 21.06.2012, at 19:26, Alessandro Adamou wrote:
More follow up, hoping it will give enough info for someone to be
able to help out.
I've just tried the reasoners.hermit bundle (latest trunk revision)
on the 0.9.0 incubating full launcher.
Of course I had to adapt the parent reference and version numbers
first, but then the plugin built and ran fine.
Something from the post-release must definitely be tampering with
it. But I cannot figure what it is.
Could anyone please at least double-check this? (works on release,
does not work on trunk head)
Best regards
Alessandro
On 6/21/12 1:21 PM, Alessandro Adamou wrote:
Another update: if I no longer export the OW API packages, I manage
to activate the bundle, but not the
org.apache.stanbol.reasoners.hermit.HermitReasoningService component.
The logged exception is a LinkageError, still on the OWL API
21.06.2012 13:12:55.933 *WARN* [FelixPackageAdmin]
org.apache.stanbol.reasoners.hermit
[org.apache.stanbol.reasoners.hermit.HermitReasoningService]
activate cannot be found (java.lang.LinkageError: loader constraint
violation: loader (instance of
org/apache/felix/framework/ModuleImpl$ModuleClassLoaderJava5)
previously initiated loading for a different type with name
"org/semanticweb/owlapi/model/OWLOntology")
(stack trace is just Felix and classloader stuff)
Mabe if I could somehow tell the reasoners.hermit module NOT to
bring in its own OWL API by not using Embed-Dependency, but that
would be a problem as HermiT requires files that are not just in
Java packages.
Best,
Alessandro
On 6/21/12 12:57 PM, Alessandro Adamou wrote:
I am bringing this one up again in case it was lost to the Jenkins
problem thread.
I do know that the HermiT JAR also includes the OWL API, but this
has been working so far (also during the Workshop that was based
on 0.9.0-incubating), how can this ever not be working anymore
just after changing module versions?
I've tried to use<_exportcontents>, which does solve the split
package issue but not the constraint violation.
Any ideas?
Thanks
Alessandro
On 6/20/12 3:32 PM, Alessandro Adamou wrote:
Hi,
I've been trying to install the HermiT reasoner bundle in the
full launcher, but ever since it was moved to contrib and version
numbers changed I cannot get it to run.
I get this package conflict when trying to start the bundle on
Java 1.6.31 Mac OS 10.6.8. Also the message seems a bit different
from other package conflict messages in the past (new Felix?):
=========
ERROR: Bundle org.apache.stanbol.reasoners.hermit [175]: Error
starting/stopping bundle. (org.osgi.framework.BundleException:
Constraint violation for package 'org.semanticweb.owlapi.util'
when resolving module 175.0 between existing export
175.0.org.semanticweb.owlapi.util NO BLAME and uses constraint
59.0.org.semanticweb.owlapi.util BLAMED ON [[175.0] package;
(&(package=org.apache.stanbol.reasoners.owlapi)(version>=0.10.0)), [101.0]
package; (&(package=org.semanticweb.owlapi.util)(version>=0.10.0))])
org.osgi.framework.BundleException: Constraint violation for
package 'org.semanticweb.owlapi.util' when resolving module 175.0
between existing export 175.0.org.semanticweb.owlapi.util NO
BLAME and uses constraint 59.0.org.semanticweb.owlapi.util BLAMED
ON [[175.0] package;
(&(package=org.apache.stanbol.reasoners.owlapi)(version>=0.10.0)), [101.0]
package; (&(package=org.semanticweb.owlapi.util)(version>=0.10.0))]
at
org.apache.felix.framework.Felix.resolveBundle(Felix.java:3449)
at
org.apache.felix.framework.Felix.startBundle(Felix.java:1727)
at
org.apache.felix.framework.Felix.setBundleStartLevel(Felix.java:1333)
at
org.apache.felix.framework.StartLevelImpl.run(StartLevelImpl.java:270)
at java.lang.Thread.run(Thread.java:680)
=========
So apparently it's going berserk on multiple OWL API packages,
but reasoners.owlapi is inheriting them from commons.owl. The
HermiT jar has its own OWL API packages, but it has been working
fine so far. I don't remember the versions of HermiT or the OWL
API changing in Stanbol.
I've tried that with the revision just before my commits from
today and keep having the same problem.
Does anyone have a clue? It would really be appreciated.
Thanks
Alessandro
--
M.Sc. Alessandro Adamou
Alma Mater Studiorum - Università di Bologna
Department of Computer Science
Mura Anteo Zamboni 7, 40127 Bologna - Italy
Semantic Technology Laboratory (STLab)
Institute for Cognitive Science and Technology (ISTC)
National Research Council (CNR)
Via Nomentana 56, 00161 Rome - Italy
"I will give you everything, just don't demand anything."
(Ettore Petrolini, 1917)
Not sent from my iSnobTechDevice
--
M.Sc. Alessandro Adamou
Alma Mater Studiorum - Università di Bologna
Department of Computer Science
Mura Anteo Zamboni 7, 40127 Bologna - Italy
Semantic Technology Laboratory (STLab)
Institute for Cognitive Science and Technology (ISTC)
National Research Council (CNR)
Via Nomentana 56, 00161 Rome - Italy
"I will give you everything, just don't demand anything."
(Ettore Petrolini, 1917)
Not sent from my iSnobTechDevice
