RFR: 8369432: Add Support for JDBC 4.5 MR [v3]

[Thomas Zimmermann]

On Fri, 10 Oct 2025 17:25:34 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
>
> Lance Andersen has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Spacing clean up in ConnectionTests

src/java.sql/share/classes/java/sql/JDBCType.java line 214:

> 212: 
> 213:     /**
> 214:      * Identifies the generic SQL type {@code DECFLOAT}.

Suggestion:

     * Identifies the generic SQL type {@code JSON}.

src/java.sql/share/classes/java/sql/SQLXML.java line 186:

> 184:  * {@code SQLXML} object has been closed, will result in a {@link SQLException}
> 185:  * being thrown.
> 186:  * <P>

Suggestion:

 * <p>

src/java.sql/share/classes/java/sql/Timestamp.java line 473:

> 471:      * }
> 472:      *
> 473:      * @return  a hash code value for this Timestamp.

Suggestion:

     * @return a hash code value for this Timestamp.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27693#discussion_r2422745497
PR Review Comment: https://git.openjdk.org/jdk/pull/27693#discussion_r2422746464
PR Review Comment: https://git.openjdk.org/jdk/pull/27693#discussion_r2422747021