[LOG4J2-3478] Base64 lookup doesn't work with system property substitution

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Not A Bug
• Assignee: Unassigned
• Reporter: oskarryn
• Created: 15/Apr/22 19:52
• Updated: 11/May/22 11:50
• Resolved: 11/May/22 11:50

Description

Base64 encoded system property doesn't work, e.g.

property.token = ${base64:${sys:some.encoded.token}}

fails (silently) and is valued literally, without any expansion. The expected behavior is that the some.encoded.token system property would be looked up and then decoded by base64 lookup.

If this kind of "nesting" should be considered a feature please comment and I'll change the type.