HHH-18881 Implement fromEncodedString as inverse of appendEncodedString

Author: cigaly

hibernate-core/src/main/java/org/hibernate/type/descriptor/java/JdbcTimestampJavaType.java

@@ -24,7 +24,6 @@
 import org.hibernate.dialect.Dialect;
 import org.hibernate.engine.spi.SharedSessionContractImplementor;
 import org.hibernate.sql.ast.spi.SqlAppender;
-import org.hibernate.type.descriptor.DateTimeUtils;
 import org.hibernate.type.descriptor.WrapperOptions;
 import org.hibernate.type.descriptor.jdbc.JdbcType;
 import org.hibernate.type.descriptor.jdbc.JdbcTypeIndicators;
@@ -224,16 +223,8 @@ public void appendEncodedString(SqlAppender sb, Date value) {
 	@Override
 	public Date fromEncodedString(CharSequence charSequence, int start, int end) {
 		try {
-			final TemporalAccessor accessor = DateTimeUtils.DATE_TIME.parse( subSequence( charSequence, start, end ) );
-			final Timestamp timestamp;
-			if ( accessor.isSupported( ChronoField.INSTANT_SECONDS ) ) {
-				timestamp = new Timestamp( accessor.getLong( ChronoField.INSTANT_SECONDS ) * 1000L );
-				timestamp.setNanos( accessor.get( ChronoField.NANO_OF_SECOND ) );
-			}
-			else {
-				timestamp = Timestamp.valueOf( LocalDateTime.from( accessor ) );
-			}
-			return timestamp;
+			final TemporalAccessor accessor = ENCODED_FORMATTER.parse( subSequence( charSequence, start, end ) );
+			return Timestamp.from( Instant.from( accessor ) );
 		}
 		catch ( DateTimeParseException pe) {
 			throw new HibernateException( "could not parse timestamp string " + subSequence( charSequence, start, end ), pe );