code: public Class<?> getJavaType(int sqlType, String typeName, int size, int digits, String tableName, String columnName) {
          // table.column mapped class
          Type<?> type = javaTypeMapping.getType(tableName, columnName);
          if (type != null) {
              return type.getReturnedClass();
          } else if (typeName != null && !typeName.isEmpty()) {
              typeName = typeName.toLowerCase();
              // typename mapped class
              Class<?> clazz = typeToName.get(typeName);
              if (clazz != null) {
                  return clazz;
              }
              if (sqlType == Types.ARRAY) {
                  if (typeName.startsWith("_")) {
                      typeName = typeName.substring(1);
                  } else if (typeName.endsWith(" array")) {
                      typeName = typeName.substring(0, typeName.length() - 6);
                  }
                  if (typeName.contains("[")) {
                      typeName = typeName.substring(0, typeName.indexOf("["));
                  }
                  if (typeName.contains("(")) {
                      typeName = typeName.substring(0, typeName.indexOf("("));
                  }
  
                  Integer sqlComponentType = templates.getCodeForTypeName(typeName);
                  if (sqlComponentType == null) {
                      logger.warn("Found no JDBC type for " + typeName + " using OTHER instead");
                      sqlComponentType = Types.OTHER;
                  }
                  Class<?> componentType = jdbcTypeMapping.get(sqlComponentType, size, digits);
                  return Array.newInstance(componentType, 0).getClass();
              }
          }
          // sql type mapped class
          return jdbcTypeMapping.get(sqlType, size, digits);
      }
docs: Get the java type for the given jdbc type, table name and column name
  
  @param sqlType JDBC type
  @param typeName JDBC type name
  @param size size
  @param digits digits
  @param tableName table name
  @param columnName column name
  @return Java type