Unified Manager でクラスターインベントリコレクションが失敗し、記録ログ log_foundation_*_sample.log に NullPointerException エラーが発生します

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環境

Active IQ Unified Manager（AIQUM）9.16

問題

ONTAP と AIQUM からインベントリを収集する際、インベントリ収集が失敗します。
au.log には次のように表示されます

2026-03-02 12:12:09,828 ERROR [xxxxx] c.o.s.a.d.n.b.z.c.n.ClusterBuilder (ClusterBuilder.java:286) - [xxxxx] xxxx - ExecutionException encountered on Builder java.util.concurrent.ExecutionException: java.lang.NullPointerException: storage_shelf key field 'uuid' may not be null. java.lang.NullPointerException: storage_shelf key field 'uuid' may not be null."

そのクラスタの netappfoundation 記録にある log_foundation_*_sample.log を確認すると、エラーが確認できます：

2025-03-24 10:17:52,146 ERROR [common-pool-15] c.o.s.a.d.n.b.z.c.n.ClusterBuilder (ClusterBuilder.java:286) - [netappfoundation] cluster1.net - ExecutionException encountered on Builder java.util.concurrent.ExecutionException: java.lang.NullPointerException java.lang.NullPointerException at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.model.cmode.CModeCluster.createExportRule(CModeCluster.java:878) ~[au-datasource-netappfoundation.jar:9.16.0-2024.11.J9] at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.builders.zapi.cmode.netappfoundation.ExportsBuilder$ExportRuleBuilder.buildIterInstance(ExportsBuilder.java:100) ~[au-datasource-netappfoundation.jar:9.16.0-2024.11.J9] at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.builders.zapi.cmode.netappfoundation.ExportsBuilder$ExportRuleBuilder.buildIterInstance(ExportsBuilder.java:58) ~[au-datasource-netappfoundation.jar:9.16.0-2024.11.J9] at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.builders.zapi.cmode.netappfoundation.IterBuilderBaseImpl.buildModel(IterBuilderBaseImpl.java:178) ~[au-datasource-netappfoundation.jar:9.16.0-2024.11.J9] at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.builders.zapi.cmode.netappfoundation.ExportsBuilder.buildModel(ExportsBuilder.java:39) ~[au-datasource-netappfoundation.jar:9.16.0-2024.11.J9] at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.builders.zapi.cmode.netappfoundation.ExportsBuilder.buildModel(ExportsBuilder.java:22) ~[au-datasource-netappfoundation.jar:9.16.0-2024.11.J9] at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.builders.zapi.cmode.netappfoundation.CallableBuilder.call(CallableBuilder.java:59) ~[au-datasource-netappfoundation.jar:9.16.0-2024.11.J9] at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.builders.zapi.cmode.netappfoundation.CallableBuilder.call(CallableBuilder.java:15) ~[au-datasource-netappfoundation.jar:9.16.0-2024.11.J9] ... 5 more Wrapped by: java.util.concurrent.ExecutionException: java.lang.NullPointerException at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:?] at java.util.concurrent.FutureTask.get(FutureTask.java:205) ~[?:?] at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.builders.zapi.cmode.netappfoundation.ClusterBuilder.executeAndBuild(ClusterBuilder.java:282) ~[au-datasource-netappfoundation.jar:9.16.0-2024.11.J9] at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.NetAppOCIEDataSource.doFoundation(NetAppOCIEDataSource.java:283) ~[au-datasource-netappfoundation.jar:9.16.0-2024.11.J9] at com.onaro.sanscreen.acquisition.netappfoundation.datasource.NetAppFoundationPackage.pollNow(NetAppFoundationPackage.java:199) ~[au-package-netappfoundation.jar:9.16.0-2024.11.J9] at com.onaro.sanscreen.acquisition.framework.datasource.BaseDataSource.run(BaseDataSource.java:269) ~[au-framework.jar:9.16.0-2024.11.J9] at com.onaro.sanscreen.acquisition.framework.mgmt.DataSourceManager$PollLogic.run(DataSourceManager.java:756) ~[au-framework.jar:9.16.0-2024.11.J9] at com.onaro.commons.metrics.executor.ThreadPoolMonitorExecutor.lambda$submit$1(ThreadPoolMonitorExecutor.java:178) ~[commons-commons.jar:9.16.0-2024.11.J9] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) ~[?:?] at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?] at com.onaro.commons.metrics.executor.ThreadPoolMonitorExecutor.lambda$execute$0(ThreadPoolMonitorExecutor.java:164) ~[commons-commons.jar:9.16.0-2024.11.J9] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[?:?] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[?:?] at java.lang.Thread.run(Thread.java:829) ~[?:?]