Issue Summary

When adjusting the office connector settings, a crash occurs if the number of queues is modified. Specifically, we observed that decreasing the value for the conversion queues updates successfully. However, an error arises when attempting to increase the "number of conversion queues."

This is reproducible on Data Center: Yes

Steps to Reproduce

Step-1. Created a Confluence 9.2.0 environment
Step-2. Navigate to General Configuration -> Office Connector -> Configure Office Connector plugin -> Number of Conversion Queues

Step-3. Change the Number of Conversion Queues from 1 to 4
Step-4. Click on Submit

Expected Results

Changes made to the office connector settings should be saved with the updated value.

Actual Results

The office connector settings page crashes when attempting to save updated values.

Workaround

As a temporary workaround, the value can be increased directly from the database. To do this, please follow the steps below:

• Please make sure to back up the database before making any changes and also test it on your test environment first.
• Run this query in the Confluence database

  UPDATE BANDANA SET bandanavalue = '<int>X</int>' WHERE bandanakey like 'com.atlassian.confluence.officeconnector.maxQueues';
  

• • Replace X with the desired value in the above statement.
  • Once you update the column on database, navigate to Administration > Cache Management > (scroll all the way down) > click Flush all. On a multi-node cluster, the cache may need to be flushed on all nodes. This step is make sure all the latest changes on the database are reflected on the application.

Note

In the logs, we could see the following exception.

2025-01-07 19:57:36,125 ERROR [http-nio-28512-exec-6] [apache.struts2.dispatcher.DefaultDispatcherErrorHandler] sendErrorResponse Exception occurred during processing request: null
 -- url: /c8512/admin/worddav/adminwordsubmit.action | userName: admin | referer: http://localhost:28512/c8512/admin/worddav/adminword.action | traceId: 10fe9398c351c0b6
java.lang.IllegalArgumentException
	at java.base/java.util.concurrent.ThreadPoolExecutor.setCorePoolSize(ThreadPoolExecutor.java:1535)
	at com.benryan.components.DefaultSlideCacheManager.initCache(DefaultSlideCacheManager.java:206)
	at com.benryan.webwork.WordAdminAction.processSubmit(WordAdminAction.java:103)