Upgrading to ATST plugin v 1.23.1 gives false alarm for jvm code cache

Issue Summary

Users that have updated to the latest ATST version available in the marketplace, that was 1.23.1, may receive a failed health check regarding JVM Code Cache memory.

The failed health check error shows up regardless of the Code Cache memory size specified in the JVM parameters.

Steps to Reproduce

This problem has multiple causes, so isn't directly reproducible.

Expected Results

The troubleshooting tools only show up an error in Code Cache memory size when there's an actual problem

Actual Results

An error is displayed even though the code cache size is adequate

Workaround

• The actual ReservedCodeCacheSize may still be too small. Increase it by following Confluence crashes due to CodeCache is full. Compiler has been disabled article.
• Restart Confluence