RFR: 8369432: Add Support for JDBC 4.5 MR

[Alan Bateman]

On Wed, 8 Oct 2025 14:49:07 GMT, Lance Andersen <lancea at openjdk.org> wrote:

> This PR adds support for the upcoming JDBC 4.5 MR which provides the following  updates to the JDBC specification:
> 
> - Deprecate SQLPermission for removal
> - Enhance the Blob/Clob/Array/SQLXML/NClob interfaces to extend/support AutoClosable
> - Add the SQL types DECFLOAT, JSON to Types.Java and JDBCType.java
> - Add the quoted identifier methods that **were added previously to the Statement interface in JDK 9** to the Connection interface
>   - It is the exact same verbiage & default methods used when these methods were added to the Statement interface
> - Clarify the Timestamp::hashCode method which incorrectly indicates that nanos are not used when calculating the hash
> 
> Tiers 1-3 have been run

src/java.sql/share/classes/java/sql/JDBCType.java line 213:

> 211:      * Identifies the generic SQL type {@code DECFLOAT}.
> 212:      */
> 213:     JSON(Types.JSON);

I thin both of these will need `@since 26`.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27693#discussion_r2420488694