[CXF-6284] JAX-RS servlet run-time leaks additional strong references

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.6.14
• Fix Version/s: 3.1, 2.7.16, 3.0.5
• Component/s: JAX-RS
• Estimated Complexity: Unknown
• Assignee: Sergey Beryozkin
• Reporter: Brian Fundakowski Feldman
• Created: 06/Mar/15 23:44
• Updated: 14/Oct/16 14:24
• Resolved: 09/Mar/15 17:36

Description

Doing local debugging of an application on TomEE 1.7.0 using JAX-RS and EJBs, after unloading, I traced back strong references via the jaxrs-field-proxy-map. Some of these got fixed in CXF 3.0 by this commit:
https://github.com/apache/cxf/commit/d012b94b94686dc98762b919a60b765be5b0b3df

However, org.apache.cxf.jaxrs.model.AbstractResourceInfo's addToMap() creates a HashMap instead of a WeakHashMap, so strong references to fields still remain and prevent GC.

In order to validate fixing these issues, I also had to modify my thread pooling to see that the last remaining strong reference, via a Stateless pool thread's threadLocals, got removed:
<Container id="myStatelessContainer" type="STATELESS">
MaxSize = 0
StrictPooling = false
</Container>