Hello Andy, > Can you debug enough to see if ARQ.init is bing called from InitARQ?> > The NPE can come from getContext() returning null > and getContext() is not null if ARQ.init has been called because > defaultSettings() unconditionally creates a Context object.
you were right! Apparently the ServiceProvider mechanism and OSGi do not play nicely. - I followed the hint on "Service Loader Consumer": http://blog.osgi.org/2013/02/javautilservicel oader-in-osgi.html - used Karaf 4.0.5 providing OSGi v5 APIs along with "OSGi ServiceLoader Mediator" specification - installed Apache Aries SPI Fly bundle, the reference implementation: http://mvnrepository.com/artifact/org.apache.aries.spifly/org.apache.aries.spifly.dynamic.bundle/1.0.8 - enhanced Jena-Osgi pom according to "spi-fly-example-provider-consumer-bundle" http://aries.apache.org/modules/spi-fly.html#examples http://svn.apache.org/repos/asf/aries/trunk/spi-fly/spi-fly-examples/spi-fly-example-provider-consumer-bundle/pom.xml <build> <plugins> <plugin> <groupId>org.apache.felix</groupId> <artifactId>maven-bundle-plugin</artifactId> <configuration> <instructions> ... <SPI-Consumer>*</SPI-Consumer> <SPI-Provider>*</SPI-Provider> ... </instructions> </configuration> </plugin> </plugins> </build> - and, voilà (logging via a bundle Activator with JenaSystem.DEBUG_INIT enabled): JenaSystem.init - start InitJenaCore InitRIOT InitARQ InitTDB Init: JenaInitLevel0 Init: InitJenaCore JenaCore.init - start JenaCore.init - finish Init: InitRIOT RIOT.init - start RIOT.init - finish Init: InitARQ ARQ.init - start ARQ.init - finish Init: InitTDB TDB.init - start TDB.init - finish JenaSystem.init - finish Jena-Osgi bundle configured! > We know that it is only a small %-age of the downloads. There is a good > chance that people are also packaging their own setups because the > bundles are right for them. > > Having feedback and fixes is essential to keep a module usable. I am glad to use Jena, and now even more ;o) Many thanks for you support. Best regards Jaroslav -- Jaroslav Pullmann Fraunhofer Institute for Applied Information Technology FIT Web Compliance Center: http://imergo.com/ · http://imergo.de/ Schloss Birlinghoven, D-53757 Sankt Augustin, Germany Phone: +49-2241-142623 · Fax: +49-2241-142065
