String[] loggerNames = { "test.logger", "another.logger" };
        ErrorToWarnRewritePolicy policy = new ErrorToWarnRewritePolicy(loggerNames);

        assertNotNull(policy);
    }

    public void test_rewrite_with_null_logger_name() {
        String[] loggerNames = { "test.logger" };
        ErrorToWarnRewritePolicy policy = new ErrorToWarnRewritePolicy(loggerNames);

        LogEvent event =