git: openjdk/jdk17u-dev: 8274172: Convert JavadocTester to use NIO

[Goetz Lindenmaier]

Changeset: 24ce3f49
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2022-03-15 09:15:56 +0000
URL:       https://git.openjdk.java.net/jdk17u-dev/commit/24ce3f49c8954ceb846ba85bf45272ce4b86a89c

8274172: Convert JavadocTester to use NIO

Backport-of: 5b0c9ccc495b6bf8061c161d48f73238c7167bc0

! test/langtools/jdk/javadoc/doclet/testDocFileDir/TestDocFileDir.java
! test/langtools/jdk/javadoc/doclet/testMetadata/TestMetadata.java
! test/langtools/jdk/javadoc/doclet/testRelativeLinks/TestRelativeLinks.java
! test/langtools/jdk/javadoc/doclet/testSearchScript/TestSearchScript.java
! test/langtools/jdk/javadoc/doclet/testSingletonLists/TestSingletonLists.java
! test/langtools/jdk/javadoc/doclet/testStylesheet/TestStylesheet.java
! test/langtools/jdk/javadoc/lib/javadoc/tester/JavadocTester.java
! test/langtools/tools/lib/toolbox/ToolBox.java