[LOG4J2-3231] JndiManager.isJndiEnabled generates a call to NetUtils.getLocalIps

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 2.16.0
• Component/s: Core
• Assignee: Unassigned
• Reporter: Phong X. Nguyen
• Created: 15/Dec/21 00:28
• Updated: 15/Dec/21 13:37
• Resolved: 15/Dec/21 05:19

Description

While trying to upgrade from 2.15.0 to 2.16.0, we discovered some of our unit tests were failing. On further investigation, we realized that the new JndiManager.isJndiEnabled() method, on first call, causes initialization of all static members of JndiManager, including a call to NetUtils.getLocalIps. In at least one of our unit test frameworks, this generates a NullPointerException. 

Could some of the permanentAllowed lists initialization be deferred to avoid this issue?