[CXF-5932] Monitor contention at org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameters(OperationResourceInfo, MultivaluedMap, Message)

• Type: Improvement
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.0.0-milestone2, 3.0, 3.0.1
• Fix Version/s: 3.0.2, 3.1
• Component/s: JAX-RS
• Labels: concurrency performance
• Estimated Complexity: Novice
• Assignee: Sergey Beryozkin
• Reporter: Lucas Pouzac
• Created: 06/Aug/14 13:08
• Updated: 16/Feb/15 16:08
• Resolved: 06/Aug/14 18:21

Description

JAXRSUtils.processParameters() indirectly calls MethodParameter.getParameterAnnotations(), which calls into JRE lib method causing monitor contention. See screen shot

Fix by caching values returned by Method.getParameterAnnotations() in a static ConcurrentMap