[LOG4J2-1359] Add support for Java 9 StackWalker API in ReflectionUtil

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: API
• Labels: jdk9

Environment

Java 1.9+

• Epic Link: Java 9 compatibility
• Assignee: Ralph Goers
• Reporter: Matt Sicker
• Created: 08/Apr/16 04:13
• Updated: 08/May/17 15:15
• Resolved: 21/Apr/17 06:43

Description

StackWalker

Based on the functional nature of this API, supporting it may require compiling at least one class using javac 1.9 and reflectively loading it in ReflectionUtil similar to how Spring supports newer JDK APIs.

Without support for StackWalker, ReflectionUtil will fall back to using a slower API in Java 1.9. This is because the Reflection class is a sun-internal class which are no longer exported to non-JDK code without setting special command line flags.

Issue Links

• relates to: LOG4J2-1745 Add support for multi-release jars for JDK9+
• relates to: LOG4J2-1746 Add JDK9 build to Jenkins