[LOG4J2-1764] Use MethodHandle in ContextDataFactory cached constructor

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8
• Component/s: Core
• Assignee: Matt Sicker
• Reporter: Matt Sicker
• Created: 04/Jan/17 04:10
• Updated: 04/Jan/17 04:23
• Resolved: 04/Jan/17 04:23

Description

The cached constructor for a custom StringMap in ContextDataFactory currently uses the core reflection API. As this constructor is called a lot if it doesn't use the default value, migration to the Java 7 MethodHandle API should improve performance on custom constructors.