関連ワード:  java stream return list of objects    java stream get list of object properties    java stream get values from list of objects    java stream get field from list of objects    java stream get ids from list of objects    java stream get max value from list of objects    java stream get distinct values from list of objects    java stream get max date from list of objects    java 8 get value from list of objects    java 8 get ids from list of objects