the latest specifying HPA capability requirements' format of TOSCA VNFD defined as:
https://wiki.onap.org/display/DW/Specifying+HPA+Capability+Requirements+using+TOSCA-based+VNF+Descriptors
have been changed, so the parse code needs update and also need add judgement to avoid null pointer.
2018-09-30T09:43:53.008+00:00||POLICY-500I INFO: the memoryPageSize =

{"schemaVersion": "0", "schemaSelector": "", "hardwarePlatform": "generic", "mandatory": "true", "configurationValue": "2 MB"}

2018-09-30T09:43:53.010+00:00||POLICY-500I INFO: the retMap =

{schemaVersion=0, hardwarePlatform=generic, schemaSelector=, mandatory=true, configurationValue=2 MB}

2018-09-30T09:43:53.010+00:00||Error exception occured when fetching with Cambria Client:null
2018-09-30T09:43:53.010+00:00||Error exception occured when fetching with Cambria Client:null
2018-09-30T09:43:53.012+00:00||Error exception occured when fetching with Cambria Client:null
java.lang.NullPointerException: null
at org.onap.policy.distribution.reception.decoding.pdpx.ExtractFromNode.generateHugePages(ExtractFromNode.java:233)
at org.onap.policy.distribution.reception.decoding.pdpx.ExtractFromNode.extractInfoVdu(ExtractFromNode.java:142)
at org.onap.policy.distribution.reception.decoding.pdpx.ExtractFromNode.extractInfo(ExtractFromNode.java:108)
at org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderCsarPdpx.decode(PolicyDecoderCsarPdpx.java:59)
at org.onap.policy.distribution.reception.decoding.pdpx.PolicyDecoderCsarPdpx.decode(PolicyDecoderCsarPdpx.java:44)
at org.onap.policy.distribution.reception.handling.AbstractReceptionHandler.inputReceived(AbstractReceptionHandler.java:80)
at org.onap.policy.distribution.reception.handling.sdc.SdcReceptionHandler.processCsarServiceArtifacts(SdcReceptionHandler.java:201)
at org.onap.policy.distribution.reception.handling.sdc.SdcReceptionHandler.activateCallback(SdcReceptionHandler.java:90)
at org.onap.sdc.impl.NotificationConsumer.run(NotificationConsumer.java:71)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)