code: public static <T> ExpressionList<T> containsIfNoneBlank(ExpressionList<T> expressionList,
                                                              String propertyName,
                                                              String value) {
          Assert.notNull(expressionList, "expressionList must not null");
          Assert.hasText(propertyName, "propertyName must not blank");
          if (StringUtils.hasText(value)) {
              return expressionList.contains(propertyName, value);
          }
          return expressionList;
      }
docs: Return a ExpressionList specifying propertyName contains value.
  
  @param expressionList the ExpressionList to add contains expression
  @param propertyName   the property name of entity bean.
  @param value          contains value, like %value%.
  @param <T>            the type of entity.
  @return a ExpressionList specifying propertyName contains value.