I added the interface in the config.ini to the property
org.osgi.framework.system.packages and checked on osgi console with
getprops. Now the 2 service implemenations will first be found in equinox
and then set to null. Framework.class line 1238
(org.eclipse.osgi_3.4.0.v20080605-1900.jar). There is a statement
context.isAssignableTo((ServiceReferenceImpl) services[i]) which is false
and then the service is set to null. Any idea ?