RFR: 8344078: Remove security manager dependency in java.nio

[Alan Bateman]

On Fri, 15 Nov 2024 05:37:43 GMT, Brian Burkhalter <bpb at openjdk.org> wrote:

> Expunge the use of the `SecurityManager`, `AccessController`, and the like from the `java.nio` and `sun.nio` package hierarchies.

src/java.base/unix/classes/sun/nio/fs/UnixFileSystem.java line 182:

> 180:         return new Iterable<>() {
> 181:             public Iterator<Path> iterator() {
> 182:                 return allowedList.iterator();

The method body can be replaced with `return List.of(rootDirectory);`.

src/java.base/unix/classes/sun/nio/fs/UnixFileSystem.java line 286:

> 284:                 return Collections.emptyList();
> 285:             }
> 286:         }

The method body can be replaced with `return FileStoreIterator::new;`.

src/java.base/unix/classes/sun/nio/fs/UnixPath.java line 842:

> 840:         }
> 841:         // The path is relative so need to resolve against default directory,
> 842:         // taking care not to reveal the user.dir

Second part of the comment can be removed.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/22132#discussion_r1843383083
PR Review Comment: https://git.openjdk.org/jdk/pull/22132#discussion_r1843386323
PR Review Comment: https://git.openjdk.org/jdk/pull/22132#discussion_r1843379196