Cache order result per Class in OrderUtils (for AnnotationAwareOrderComparator) [SPR-17064]

[spring-projects-issues]

Juergen Hoeller opened SPR-17064 and commented

As a follow-up to #21271, it turns out that AnnotationAwareOrderComparator can become a hotspot. Caching annotation-derived order results per Class, ideally at OrderUtils level, should provide significant benefits in scenarios with repeated sort attempts.

---

Affects: 5.0.6

Issue Links:

• Avoid repeated superclass introspection in AnnotationUtils.findAnnotation [SPR-16730] #21271 Avoid repeated superclass introspection in AnnotationUtils.findAnnotation
• Resolved ApplicationListener event type should get cached [SPR-16970] #21508 Resolved ApplicationListener event type should get cached
• Unnecessary sort in AbstractApplicationEventMulticaster [SPR-17307] #21840 Unnecessary sort in AbstractApplicationEventMulticaster

Referenced from: commits 4d3a899, d0bbbf4