[LOG4J2-2030] ClassCastException: org.apache.logging.log4j.simple.SimpleLoggerContext cannot be cast to org.apache.logging.log4j.core.LoggerContext

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.9.0
• Fix Version/s: 2.9.1
• Component/s: Core
• Assignee: Ralph Goers
• Reporter: jncharpin
• Created: 05/Sep/17 09:27
• Updated: 06/Sep/17 07:45
• Resolved: 06/Sep/17 06:28

Description

When upgrading from 2.8.2 to 2.9.0, we are facing the following exception when accessing the context.

Caused by: java.lang.ClassCastException: org.apache.logging.log4j.simple.SimpleLoggerContext cannot be cast to org.apache.logging.log4j.core.LoggerContext
at org.apache.logging.log4j.core.LoggerContext.getContext(LoggerContext.java:190)
at org.apache.logging.log4j.core.config.Configurator.setLevel(Configurator.java:291)

Seems like that the context factory is incorrect and defaulted to SimpleLoggerContextFactory because of the provider is not able to find the resource META-INF/log4j-provider.properties which is missing in 2.9.0 if not wrong.

Issue Links

• is related to: LOG4J2-2033 Regression in ProviderUtil.hasProviders for 2.9.0