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

[Guoxiong Li]

On Thu, 31 Dec 2020 15:57:28 GMT, Guoxiong Li <github.com+13688759+lgxbslgx at openjdk.org> wrote:

>> 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
>
> If we use `qualifiedSymbolCache.clear()`, maybe it is good to remove the following code currently. 
> 
> if (qualifiedSymbolCache == null) {
>                 qualifiedSymbolCache = new HashMap<>();
> }
> 
> If the `qualifiedSymbolCache` is revised elsewhere in the future, more attention should be paid.

Fixed.

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