Rule Definition
Using two APIs for the same function is considered a problem in terms of maintainability and robustness. It is highly recommended to use only one API, especially when you are using a high-level library/framework or wrapping functionalities that provide additional checks on variables.

Remediation
Use {@code} instead of

Violation Code Sample

/**
 * -- ex: looping through List of Map objects --
 * <code>
 * for (int i = 0; i < list.size(); i++) {
 *      Map map = (Map)list.get(i);
 *      System.out.println(map.get("wordID"));
 *      System.out.println(map.get("word"));
 * }
 * </code>
 * 
 * @param query - select statement
 * @return List of Map objects
 */

Fixed Code Sample

/**
 * -- ex: looping through List of Map objects --
 * {@code
 * for (int i = 0; i < list.size(); i++) {
 *      Map map = (Map)list.get(i);
 *      System.out.println(map.get("wordID"));
 *      System.out.println(map.get("word"));
 * }
 * }
 * 
 * @param query - select statement
 * @return List of Map objects
 */

https://docs.oracle.com/javase/8/docs/technotes/tools/unix/javadoc.html#CHDJGIJB