The contents of atlassian-bundled-plugins.zip are retained in memory

I'm seeing in a heap dump of Bamboo from studio.atlassian.com, that the content of atlassian-bundled-plugins.zip is retained in memory by the Tomcat WebappClassLoader.

This is a problem that has already been addressed in Confluence (CONF-17511) and JIRA (JRADEV-6137), so a similar solution should be implemented in Bamboo to avoid using the classloader to access the file. This file isn't as large in Bamboo as it is in JIRA and Confluence, but it still is a fairly significant amount of heap space to be wasting, and it is actually considerably bigger on Studio than in a standalone Bamboo (10M in Studio vs. 5.2M normally).