RFR: 8186958: Need method to create pre-sized HashMap [v18]

[Stuart Marks]

On Wed, 13 Apr 2022 22:20:14 GMT, XenoAmess <duke at openjdk.java.net> wrote:

>> 8186958: Need method to create pre-sized HashMap
>
> XenoAmess has updated the pull request incrementally with one additional commit since the last revision:
> 
>   update LastModified

src/java.xml/share/classes/com/sun/org/apache/xalan/internal/xsltc/dom/DocumentCache.java line 171:

> 169:         _current = 0;
> 170:         _size  = size;
> 171:         _references = HashMap.newHashMap(_size);

Not `_size+2` ?

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PR: https://git.openjdk.java.net/jdk/pull/7928