When an NSD does not have a vnf-id property, this is returned: ``` java.lang.NullPointerException: Cannot invoke "java.util.Map.values()" because the return value of "org.opendaylight.yang.gen.v1.urn.etsi.nfv.yang.etsi.nfv.descriptors.rev190425.nsd.Df.getVnfProfile()" is null at org.etsi.osl.mano.MANOController.synchronizeNSDsOSM11(MANOController.java:1599) at org.etsi.osl.mano.MANOController.synchronizeNSDs(MANOController.java:1387) ``` ### Acknowledgements This work is supported by the EU-funded HORIZON-JU-SNS-2022 FIDAL project with Grant Agreement number 101096146