RFR: 8261480: MetaspaceShared::preload_and_dump should check exceptions [v2]

[Ioi Lam]

On Wed, 17 Mar 2021 16:40:46 GMT, Calvin Cheung <ccheung at openjdk.org> wrote:

>> Ioi Lam has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   @dholmes-ora comments
>
> src/hotspot/share/classfile/classLoaderExt.cpp line 277:
> 
>> 275:   if (stream == NULL) {
>> 276:     THROW_NULL(vmSymbols::java_lang_ClassNotFoundException());
>> 277:     return NULL;
> 
> Why was the above removed?

Thanks for the review. It was removed by mistake and I restore it.

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PR: https://git.openjdk.java.net/jdk/pull/2925