RFR: 8345286: Remove use of SecurityManager API from misc areas [v6]

[Alan Bateman]

On Mon, 2 Dec 2024 14:24:57 GMT, Jaikiran Pai <jpai at openjdk.org> wrote:

>> Can I please get a review of this change which removes usages of SecurityManager related APIs and some leftover related to SecurityManager changes?
>> 
>> This addresses https://bugs.openjdk.org/browse/JDK-8345286. Most of these changes are trivial. The `src/java.base/linux/classes/jdk/internal/platform/CgroupUtil.java` used to expose utility methods for dealing with SecurityManager permissions and it was called from a few places. That class is no longer needed with the clean up done in this PR.
>> 
>> No new tests have been introduced and tier testing is currently in progress.
>
> Jaikiran Pai has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - remove unused import
>  - replace remaining Paths.get() with Path.of() in the updated files

src/java.base/unix/classes/sun/security/provider/NativePRNG.java line 129:

> 127:      * Create a RandomIO object for all I/O of this Variant type.
> 128:      */
> 129:     @SuppressWarnings("removal")

Sean has included in this one in the changes for sun.security (pull/22418) so I think you can drop it from this PR.

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PR Review Comment: https://git.openjdk.org/jdk/pull/22478#discussion_r1866083497