[UIMA-5571] uv3 log4j bridge not handling multi-substitutable args vs throwable correctly

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0SDK-alpha02
• Fix Version/s: 3.0.0SDK-beta
• Component/s: Core Java Framework
• Assignee: Marshall Schor
• Reporter: Marshall Schor
• Created: 14/Sep/17 13:33
• Updated: 18/Sep/17 16:41
• Resolved: 14/Sep/17 13:57

Description

The log4j (v2) API has calls which allow both a message (with substitutable parts) and arguments to substitute.

It also has calls which allow passing a throwable.

The calls that support passing a throwable do not support substituable parts. The bridge code assumed that it did. This resulted in an array of args being treated as one substitutable value.

Change the bridge code to call one of two different log4j methods, depending on whether or not a throwable is being included.