RFR(XXS) 8230385 [cds] No message is logged when shared image cannot be used due to mismatched configuration

[Thomas Stüfe]

Looks good Ioi. I'm surprised UL works this early.

Cheers, Thomas

On Wed, Nov 27, 2019 at 7:29 PM Ioi Lam <ioi.lam at oracle.com> wrote:

> https://bugs.openjdk.java.net/browse/JDK-8230385
>
> http://cr.openjdk.java.net/~iklam/jdk14/8230385-log-when-cds-is-disabled.v01/
>
> Please review this one-liner addition that prints a log message when CDS
> cannot be used. Output:
>
> $ java -XX:-UseCompressedOops -Xlog:cds -version
> [0.001s][info][cds] Unable to use shared archive: UseCompressedOops and
> UseCompressedClassPointers must be on for UseSharedSpaces.
> java version "14-internal" 2020-03-17
> Java(TM) SE Runtime Environment (fastdebug build
> 14-internal+0-adhoc.iklam.open)
> Java HotSpot(TM) 64-Bit Server VM (fastdebug build
> 14-internal+0-adhoc.iklam.open, mixed mode)
>
> Thanks
> - Ioi
>