JBoss jBPM 5.3.0.Final problem in Apache Karaf OSGi Runtime

EMF works, Drools works, but now cannot start the jBPM bundle :

registering api : org.jbpm.process.instance.ProcessRuntimeFactoryServiceImpl@70cf08b1 : interface org.drools.runtime.process.ProcessRuntimeFactoryService  registering compiler : org.jbpm.process.instance.ProcessRuntimeFactoryServiceImpl@70cf08b1 : interface org.drools.runtime.process.ProcessRuntimeFactoryService  registering api : org.jbpm.marshalling.impl.ProcessMarshallerFactoryServiceImpl@69c78571 : interface org.drools.marshalling.impl.ProcessMarshallerFactoryService  registering api : org.jbpm.process.builder.ProcessBuilderFactoryServiceImpl@7442df79 : interface org.drools.compiler.ProcessBuilderFactoryService  ERROR: Bundle org.jbpm.bpmn2 [170] Error starting mvn:org.jbpm/jbpm-bpmn2/5.3.0.Final (org.osgi.framework.BundleException: Activator start error in bundle org.jbpm.bpmn2 [170].)  java.lang.NullPointerException          at org.apache.felix.framework.resolver.ResolverImpl.toStringBlame(ResolverImpl.java:1583)          at org.apache.felix.framework.resolver.ResolverImpl.checkPackageSpaceConsistency(ResolverImpl.java:1007)          at org.apache.felix.framework.resolver.ResolverImpl.resolve(ResolverImpl.java:171)          at org.apache.felix.framework.Felix$FelixResolver.resolve(Felix.java:4103)          at org.apache.felix.framework.ModuleImpl.searchDynamicImports(ModuleImpl.java:1412)          at org.apache.felix.framework.ModuleImpl.findClassOrResourceByDelegation(ModuleImpl.java:734)          at org.apache.felix.framework.ModuleImpl.access$400(ModuleImpl.java:71)          at org.apache.felix.framework.ModuleImpl$ModuleClassLoader.loadClass(ModuleImpl.java:1768)          at java.lang.ClassLoader.loadClass(ClassLoader.java:266)          at org.jbpm.osgi.bpmn2.Activator.start(Activator.java:35)          at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:629)          at org.apache.felix.framework.Felix.activateBundle(Felix.java:1842)          at org.apache.felix.framework.Felix.startBundle(Felix.java:1759)          at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1163)          at org.apache.felix.framework.StartLevelImpl.run(StartLevelImpl.java:264)          at java.lang.Thread.run(Thread.java:679)  

Still not sure why... Even doing dev:show-tree breaks Karaf :

2012-07-15 14:10:48,870 | INFO  | l Console Thread | Console                          | 36 - org.apache.karaf.shell.console - 2.2.8 | Exception caught while executing command
java.lang.ArrayIndexOutOfBoundsException: 18
        at org.apache.karaf.shell.dev.util.Import.split(Import.java:144)[18:org.apache.karaf.shell.dev:2.2.8]
        at org.apache.karaf.shell.dev.util.Import.parse(Import.java:104)[18:org.apache.karaf.shell.dev:2.2.8]
        at org.apache.karaf.shell.dev.ShowBundleTree.createNodesForImports(ShowBundleTree.java:136)[18:org.apache.karaf.shell.dev:2.2.8]
        at org.apache.karaf.shell.dev.ShowBundleTree.createTree(ShowBundleTree.java:128)[18:org.apache.karaf.shell.dev:2.2.8]
        at org.apache.karaf.shell.dev.ShowBundleTree.doExecute(ShowBundleTree.java:58)[18:org.apache.karaf.shell.dev:2.2.8]
        at org.apache.karaf.shell.dev.AbstractBundleCommand.doExecute(AbstractBundleCommand.java:61)[18:org.apache.karaf.shell.dev:2.2.8]
        at org.apache.karaf.shell.console.OsgiCommandSupport.execute(OsgiCommandSupport.java:38)[36:org.apache.karaf.shell.console:2.2.8]
        at org.apache.felix.gogo.commands.basic.AbstractCommand.execute(AbstractCommand.java:35)[36:org.apache.karaf.shell.console:2.2.8]
        at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:78)[36:org.apache.karaf.shell.console:2.2.8]
        at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:474)[36:org.apache.karaf.shell.console:2.2.8]
        at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:400)[36:org.apache.karaf.shell.console:2.2.8]
        at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108)[36:org.apache.karaf.shell.console:2.2.8]
        at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:183)[36:org.apache.karaf.shell.console:2.2.8]
        at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:120)[36:org.apache.karaf.shell.console:2.2.8]
        at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:89)[36:org.apache.karaf.shell.console:2.2.8]
        at org.apache.karaf.shell.console.jline.Console.run(Console.java:166)[36:org.apache.karaf.shell.console:2.2.8]
        at java.lang.Thread.run(Thread.java:679)[:1.6.0_23]

JBoss BRMS claims that jBPM is OSGi-friendly.
jBpm Forum Thread with exact same problem.

Bugs filed:

• JBPM-3715
• FELIX-3598
• KARAF-1648