[ https://issues.jboss.org/browse/JBLOGGING-140?page=com.atlassian.jira.plu... ] Philippe Marschall updated JBLOGGING-140: ----------------------------------------- Description: We use jboss-logging with a custom SLF4J implementation that does not implement {{LocationAwareLogger}}. We have exception tracing on and see a {{ClassCastException}} in {{org.jboss.logging.Slf4jLoggerProvider#getLogger(String)}} for every logger we look up. We did some preliminary microbenchmarks and can see no differences between unconditionally casting and catching {{Throwable}} vs an {{instanceof}}, both in cases where the check succeeds and where is fails. Having said the class hierarchies we tested are slightly different from actual SLF4J class hierarchies. was: We use jboss-logging with a custom SLF4J implementation that does not implement {{LocationAwareLogger}}. We have exception tracing on and see a {{ClassCastException}} in {{org.jboss.logging.Slf4jLoggerProvider#getLogger(String)}} for every logger we look up. We did some preliminary microbenchmarks and can see no differences between unconditionally casting and catching {{Throwable}} vs an {{instanceof}}, both in cases where the check success. Having said the class hierarchies we tested are slightly different from actual SLF4J class hierarchies. -- This message was sent by Atlassian Jira (v7.12.1#712002)