[LOG4J2-848] Add a Java lookup to provide nicely formatted runtime version information

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.1
• Component/s: Lookups

Environment

Apache Maven 3.2.3 (33f8c3e1027c3ddde99d3cdebad2656a31e8fdf4; 2014-08-11T16:58:10-04:00)
Maven home: C:\Java\apache-maven-3.2.3
Java version: 1.7.0_67, vendor: Oracle Corporation
Java home: C:\Program Files\Java\jdk1.7.0_67\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "amd64", family: "windows"

• Assignee: Gary D. Gregory
• Reporter: Gary D. Gregory
• Created: 22/Sep/14 14:23
• Updated: 22/Sep/14 14:30
• Resolved: 22/Sep/14 14:30

Description

Add a Java lookup to provide nicely formatted runtime version information:

Keys	Sample
java:version	Java version 1.7.0_67
java:runtime	Java(TM) SE Runtime Environment (build 1.7.0_67-b01) from Oracle Corporation
java:vm	Java HotSpot(TM) 64-Bit Server VM (build 24.65-b04, mixed mode)
java:os	Windows 7 6.1 Service Pack 1, architecture: amd64-64
java:locale	default locale: en_US, platform encoding: Cp1252
java:hw	processors: 4, architecture: amd64-64, instruction sets: amd64

This is useful for apps that want to include operating information at the start of logs in layout headers.

The new class JavaLookup provides methods to create each String.