assertEquals(1, events.size());
        assertEquals("ERROR", events.get(0).getLevel());
        assertEquals("org.codelibs.fess.test", events.get(0).getLoggerName());
        assertEquals("test error message", events.get(0).getMessage());
        assertNull(events.get(0).getThrowable());
    }

    @Test
    public void test_append_warnEvent_withErrorLevel() {

            return level;
        }

        /**
         * Returns the logger name.
         *
         * @return the logger name
         */
        public String getLoggerName() {
            return loggerName;
        }

        /**
         * Returns the log message.
         *
         * @return the log message
         */
        public String getMessage() {

                    source.put("hostname", hostname);
                    source.put("level", event.getLevel());
                    source.put("loggerName", event.getLoggerName());
                    source.put("message", event.getMessage());
                    source.put("throwable", event.getThrowable() != null ? event.getThrowable() : "");

     * @return the original event or a new event with WARN level if conversion applied
     */
    @Override
    public LogEvent rewrite(final LogEvent event) {
        final String loggerName = event.getLoggerName();
        if (loggerName == null) {
            return event;
        }
        for (final String name : loggerNames) {
            if (loggerName.startsWith(name)) {