RFR: 8286560: Remove user parameter from jdk.internal.perf.Perf.attach()

[Alan Bateman]

On Wed, 11 May 2022 23:08:32 GMT, Ioi Lam <iklam at openjdk.org> wrote:

> The API `jdk.internal.perf.Perf.::attach(String user, int lvmid)` is never used. It should be removed, and all the handling of a specified user name should be removed.

Marked as reviewed by alanb (Reviewer).

src/java.base/share/classes/jdk/internal/perf/Perf.java line 246:

> 244:      */
> 245:     private native ByteBuffer attach0(int lvmid)
> 246:                    throws IllegalArgumentException, IOException;

You can drop the "throws IllegalArgumentException" here if you want, it's not needed as it's a runtime exception.

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PR: https://git.openjdk.java.net/jdk/pull/8669