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java.lang.NullPointerException: 	at org.occiware.clouddesigner.occi.infrastructure.impl.InfrastructurePackageImpl.initializePackageContents(InfrastructurePackageImpl.java:836)	at org.occiware.clouddesigner.occi.infrastructure.impl.InfrastructurePackageImpl.init(InfrastructurePackageImpl.java:247)	at org.occiware.clouddesigner.occi.infrastructure.InfrastructurePackage.(InfrastructurePackage.java:61)	at sun.misc.Unsafe.ensureClassInitialized(Native Method)	at sun.reflect.UnsafeFieldAccessorFactory.newFieldAccessor(UnsafeFieldAccessorFactory.java:43)	at sun.reflect.ReflectionFactory.newFieldAccessor(ReflectionFactory.java:142)	at java.lang.reflect.Field.acquireFieldAccessor(Field.java:1088)	at java.lang.reflect.Field.getFieldAccessor(Field.java:1069)	at java.lang.reflect.Field.get(Field.java:393)	at org.occiware.mart.MART.initMART(MART.java:120)	at org.ow2.erocci.model.ConfigurationManager.(ConfigurationManager.java:63)	at org.ow2.erocci.backend.BackendDBusService.main(BackendDBusService.java:76)