Skip to main content
NetApp Knowledge Base

Adding cluster for monitoring in Unified Manager fails with "Failed in conversion" and NullPointerException errors in the logs

Views:
853
Visibility:
Public
Votes:
1
Category:
active-iq-unified-manager
Specialty:
OM
Last Updated:

Applies to

  • Active IQ Unified Manager (AIQUM) 9.14
  • Active IQ Unified Manager (AIQUM) 9.16
  • Active IQ Unified Manager (AIQUM) 9.18

Issue

  • Adding a new cluster or collecting on an already-added cluster for monitoring in Unified Manager after upgrading to AIQUM 9.14+ results in an error Failed in conversion.
  • If adding a new cluster, the server_acq.log will contain the errors. If cluster was already added in a previous version, the au.log will contain the errors. There are different ways the Failed in conversion NPE error can manifest, the differentiator being the module where the NPE occurred.
  • The GVServerBuilder.java line 89 is specific to this issue:
    2026-02-04 17:39:28,279 ERROR [common-pool-70] c.o.s.a.d.n.b.r.g.n.GClusterBuilder (GClusterBuilder.java:251) - [netappfoundation] cluster1 - ExecutionException encountered on Builder java.util.concurrent.ExecutionException: java.lang.NullPointerException java.lang.NullPointerException
        at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.builders.rest.gmode.netappfoundation.GVServerBuilder.createVServers(GVServerBuilder.java:89) ~[au-datasource-netappfoundation.jar:9.16.0-2025.05.J22]
        at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.builders.rest.gmode.netappfoundation.GVServerBuilder.buildModel(GVServerBuilder.java:66) ~[au-datasource-netappfoundation.jar:9.16.0-2025.05.J22]
        at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.builders.rest.gmode.netappfoundation.GVServerBuilder.buildModel(GVServerBuilder.java:46) ~[au-datasource-netappfoundation.jar:9.16.0-2025.05.J22]
        at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.builders.zapi.cmode.netappfoundation.CallableBuilder.call(CallableBuilder.java:59) ~[au-datasource-netappfoundation.jar:9.16.0-2025.05.J22]
        at com.onaro.sanscreen.acquisition.datasource.netapp_ocie.builders.zapi.cmode.netappfoundation.CallableBuilder.call(CallableBuilder.java:15) ~[au-datasource-netappfoundation.jar:9.16.0-2025.05.J22]
        ... 5 more
    Wrapped by: java.util.concurrent.ExecutionException: java.lang.NullPointerException
        at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:?]

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.