jetbrick-orm/src/main/java/jetbrick/dao/jdbclog/JdbcLogDriver.java
@Override
    public java.util.logging.Logger getParentLogger() throws SQLFeatureNotSupportedException {
        if (drivers.size() == 1) {
            return getFirstDriver().getParentLogger();
        }
        return null;
    }
@Override
    public java.util.logging.Logger getParentLogger() throws SQLFeatureNotSupportedException {
        if (drivers.size() == 1) {
            return getFirstDriver().getParentLogger();
        }
        return null;
    }
JDK 1.7