private org.slf4j.event.Level jplLevelToSLF4JLevel(Level jplLevel) {
        switch (jplLevel) {
        case TRACE:
            return org.slf4j.event.Level.TRACE;
        case DEBUG:
            return org.slf4j.event.Level.DEBUG;
        case INFO:
            return org.slf4j.event.Level.INFO;
        case WARNING:
            return org.slf4j.event.Level.WARN;
        case ERROR:
            return org.slf4j.event.Level.ERROR;
        default:
            reportUnknownLevel(jplLevel);
            return null;
        }
    }
Transform a {@link Level} to {@link org.slf4j.event.Level}.

This method assumes that Level.ALL or Level.OFF never reach this method.

@param jplLevel
@return
slf4j-jdk-platform-logging/src/main/java/org/slf4j/jdk/platform/logging/SLF4JPlatformLogger.java