Symptoms:
2019-05-06 11:06:27,505 | WARN | pool-jetty-2227470 | BatchTask | Error executing backend call. | requestId=<REQUEST_UUID>,request=POST https://<VCD_URL>/cloud/amfsecure,requestTime=1557165987260,remoteAddress=<IP>:55864,userAgent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 ...,accept=*/* method=networkService.updateGatewayProperties
java.lang.NullPointerException
at com.vmware.vcloud.networking.model.edge.specconverter.IpSecVpnSpecToDtoConverter.getSitesConfigFromServiceSpec(IpSecVpnSpecToDtoConverter.java:156)