RFR: 8255757: Javac emits duplicate pool entries on array::clone [v2]

[Vicente Romero]

On Thu, 31 Dec 2020 10:05:19 GMT, Guoxiong Li <github.com+13688759+lgxbslgx at openjdk.org> wrote:

>> Hi all,
>> 
>> Currently, javac would emit duplicate pool entries when compiling array::clone.
>> This patch fixes it by using a cached field `Map<Type, Symbol> qualifiedSymbolCache;` and adds a corresponding test case.
>> 
>> Thank you for taking the time to review.
>> 
>> Best Regards.
>
> Guoxiong Li has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Cleanup variable and useless test code.

src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/Gen.java line 2433:

> 2431:             endPosTable = null;
> 2432:             nerrs = 0;
> 2433:             qualifiedSymbolCache = null;

I meant `qualifiedSymbolCache.clear()` instead of assigning null to it

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PR: https://git.openjdk.java.net/jdk/pull/1912