On Thu, 19 Nov 2020 01:22:01 GMT, Poonam Bajaj <poo...@openjdk.org> wrote:
> Hi,
>
> Please review this simple change that catches UncheckedIOException that can
> occur if /proc/self/cgroup or /proc/self/mountinfo files don't exist on the
> system, or if there is an interrupt while these are being read.
>
> Testing: Tier1, Tier2 and Tier3.
>
> Thanks,
> Poonam
Changes requested by shade (Reviewer).
src/java.base/linux/classes/jdk/internal/platform/cgroupv1/CgroupV1Subsystem.java
line 79:
> 77: .forEach(entry -> createSubSystemController(subsystem,
> entry));
> 78:
> 79: } catch (UncheckedIOException e) {
I am confused. `CgroupUtil.readFilePrivileged` unwraps `UncheckedIOException`,
why this catch clause is needed? Is this because the cause might be
`UncheckedIOException` itself? Might be easier to rewrap `UncheckedIOException`
to just `IOException` in `CgroupUtil`.
src/java.base/linux/classes/jdk/internal/platform/CgroupUtil.java line 50:
> 48: throw new InternalError(e.getCause());
> 49: } catch (UncheckedIOException e) {
> 50: throw e.getCause();
There are other reader methods in the same file, should this block be added to
them as well?
-------------
PR: https://git.openjdk.java.net/jdk/pull/1303
