[LOG4J2-1999] HighlightConverter converts all unrecognised levels to DEBUG

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.8.2
• Fix Version/s: 2.9.0
• Component/s: Configurators
• Assignee: Gary D. Gregory
• Reporter: Paul Burrowes
• Created: 03/Aug/17 03:57
• Updated: 22/Aug/17 05:17
• Resolved: 21/Aug/17 22:21

Description

_emphasized text_On line 166 HighlightConverter maps the level in the highlight style option to a Level using the single-argument toLevel(). This defaults to DEBUG if the level is not found. It needs to use getLevel() so it can get a null return value to report errors

                final Level level = Level.toLevel(key);

should be

                final Level level = Level.getLevel(key);

The error message should also be fixed to use Level.values() instead of DEFAULT_STYLES.keySet().toArray()