Classloader memory leak caused by FriendlyURLMapperTrackerImpl

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.X, 7.1.X, Master
• Fix Version/s: 7.1.10 DXP FP4, 7.1.10.1 SP1, 7.1.2 CE GA3, 7.1.X, Master
• Component/s: Core Infrastructure
• Labels:
  • INACTIVE
  • ee-ts
  • liferay-dxp-71-sp1
  • liferay-fixpack-dxp-4-7110
• Branch Version/s:
  7.1.x
• Backported to Branch:
  Committed
• Story Points: 1
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/64697

ServiceTracker opened by FriendlyURLMapperTrackerImpl is actually never closed (FriendlyURLMapperTrackerImpl.close() is not called when undeploying the bundle). That ServiceTracker holds a ref path to the class loader, and is held by Equinox.

Reproduction Steps:

1. redeploy an arbitrary portlet modul several
2. create heapdumps with JVisualVM
3. check heapdumps and notice there is one more EquinoxClassloader