RFR: 8265248: Implementation Specific Properties: change prefix, plus add existing properties [v2]

[Roger Riggs]

On Tue, 27 Apr 2021 23:07:33 GMT, Joe Wang <joehw at openjdk.org> wrote:

>> Update module summary, add a few existing properties and features into the tables.
>
> Joe Wang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update the CSR. See Update 03 in the CSR

src/java.xml/share/classes/com/sun/org/apache/xalan/internal/utils/XMLSecurityManager.java line 264:

> 262:             int temp;
> 263:             if (Integer.class.isAssignableFrom(value.getClass())) {
> 264:                 temp = (Integer)value;

Why not use pattern matching?
`if (value instanceof Integer intValue) {
  temp = intValue;
}

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PR: https://git.openjdk.java.net/jdk/pull/3644