git: openjdk/jdk: 8274394: Use Optional.isEmpty instead of !Optional.isPresent in jdk.jlink

[Mandy Chung]

Changeset: 6f4cefbc
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Mandy Chung <mchung at openjdk.org>
Date:      2021-09-28 17:22:27 +0000
URL:       https://git.openjdk.java.net/jdk/commit/6f4cefbcbaad38dcacd4e047c6c232a0a7a2c19c

8274394: Use Optional.isEmpty instead of !Optional.isPresent in jdk.jlink

Reviewed-by: alanb, mchung

! src/jdk.jlink/share/classes/jdk/tools/jlink/builder/DefaultImageBuilder.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/JlinkTask.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/ResourcePoolManager.java
! src/jdk.jlink/share/classes/jdk/tools/jlink/internal/plugins/LegalNoticeFilePlugin.java
! src/jdk.jlink/share/classes/jdk/tools/jmod/JmodTask.java