Class name not accepted: java.net.Inet6Address error received when viewing Agent Management page in Aria Operations for Logs

Products

• VCF Operations/Automation (formerly VMware Aria Suite)

Issue/Introduction

• When attempting to view deployed Agents within the Agent Management page in Aria Operations for logs, you may receive the following error message along with the agents not being visible: Class name not accepted: java.net.Inet6Address
  
  
• The log /storage/core/loginsight/var/ui_runtime.log contains entries similar to the following:
  
  [2025-10-09 14:42:11.933+0000] ["https-openssl-apr-443-exec-6"/##.##.##.## ERROR] [com.vmware.loginsight.web.actions.settings.AgentsActionBean] [Failed to load agent data] org.apache.commons.lang3.SerializationException: java.io.InvalidClassException: Class name not accepted: java.net.Inet6Address at com.vmware.loginsight.commons.SerializationUtil.deserializeSecure(SerializationUtil.java:55) ~[commons-lib.jar:?]

Caused by: java.io.InvalidClassException: Class name not accepted: java.net.Inet6Address
 at org.apache.commons.io.serialization.ValidatingObjectInputStream.invalidClassNameFound(ValidatingObjectInputStream.java:95) ~[commons-io-2.8.0.jar:2.8.0]


• Aria Operations for Logs agents are not configured to use IPv6

Environment

Aria Operations for Logs 8.18.x

Cause

This issue can be caused by a misconfiguration with the ipv6.disable setting in the /boot/photon.cfg file.
This setting is used to enable or disable ipv6 at the kernel level.

Resolution

Engineering is aware of this issue and it will be resolved future release.

 

Workaround:

1. Add the following line to /boot/photon.cfg file on each node in the Aria Operations for Logs cluster:

ipv6.disable=1
   
   
2. Reboot each node after making this change.

 

Additional Information

Additional guidance on disabling ipv6 can be found by referencing the following article: Disable ipv6 in Aria operation for logs