[magnusp]

What changed

Moved the read-side Hrana value conversion out of LibsqlResultSet into a new package-private JdbcValueReader, the counterpart of the existing JdbcValueConverter. LibsqlResultSet now reads as navigation, column resolution, and the JDBC surface. JdbcValueReader owns the conversion of one stored value to the Java value a getter returns.

The getObject(int, Class) conversion body moved with it. The public override still owns the null-type check, the declared-type rejection, and the JDBC contract javadoc.

Behavior preserved

Every exception type and message is unchanged. Every getter returns the same value for the same storage class and declared type. The getObject fast path and the type if-chains moved byte for byte. The public API is unchanged.

Pins added

Test	Behavior pinned
declaredNumericTextRejectsANonNumberWithTheXerialMessage	Declared numeric text parses strictly and keeps Bad value for type numeric: abc.
declaredNumericBlobRejectsANonNumberWithTheXerialMessage	Declared numeric blob parses strictly with the same message.
declaredTinyIntRejectsAValueOutsideTheIntRange	getObject keeps Value N does not fit the declared TINYINT type.
bigDecimalRejectsNonNumericText	getBigDecimal keeps Bad value for type BigDecimal: abc.
urlRejectsMalformedText	getURL keeps Bad value for type URL: not a url.
offsetTimeRejectsMalformedText	getObject(OffsetTime.class) keeps Bad value for type OffsetTime: abc.
offsetDateTimeAcceptsTheSqliteSpaceSeparator	The space separator still normalizes to T before parsing.
typedIntegerTargetOnTextStorageUsesTheTargetTypeMessage	getObject(Integer.class) on TEXT keeps Bad value for type Integer.

Mutant kills

Probe	Result
Change the strict numeric message from numeric to number.	2 pins failed. Reverted.
Change the getObject numeric gate to always true.	1 pin failed. Reverted.

Diff (file statistics)

 JdbcValueReader.java                       | 472 +++++++++++++++++++++
 LibsqlResultSet.java                       | 463 ++------------------
 LibsqlResultSetConversionTest.java         | 106 +++++
 3 files changed, 606 insertions(+), 435 deletions(-)

Line counts

File	Before	After
LibsqlResultSet.java	1244	837
JdbcValueReader.java	0	472

Probe

The first probe changed the strict numeric parse message in the moved code. Two pins failed, and the message was restored. The second probe removed the storage-class gate in getObject, and the new typed-target pin failed. Both probes left no change.

Lanes

Command	Result
mise exec -- ./mvnw -pl libsql-jdbc -am test	Pass, 1565 tests (baseline 1557 plus 8 pins).
mise exec -- ./mvnw spotless:check	Pass.
mise exec -- ./mvnw -pl libsql-conformance -am verify	Pass, 271 tests, 6 skipped.
DOCKER_CONFIG=... mise exec -- ./mvnw -pl libsql-itests -am verify	Pass, 43 driver ITs and 192 itests. The first attempt hit a RootlessKit port collision for Ryuk; the retry passed.

• My code follows the code style of this project (./mvnw spotless:check).
• I have added tests that prove my fix is effective or that my feature works.
• All new and existing tests passed (./mvnw clean verify).
• I have updated documentation where appropriate.

Closes #276