log4j-to-jul/src/main/java/org/apache/logging/log4j/tojul/JULLogger.java
log4j-to-slf4j/src/main/java/org/apache/logging/slf4j/SLF4JLogger.java

log4j-to-jul/src/main/java/org/apache/logging/log4j/tojul/JULLoggerContextFactory.java
log4j-to-slf4j/src/main/java/org/apache/logging/slf4j/SLF4JLoggerContextFactory.java

log4j-to-jul/src/main/java/org/apache/logging/log4j/tojul/JULLoggerContext.java
log4j-to-slf4j/src/main/java/org/apache/logging/slf4j/SLF4JLoggerContext.java