diff --git a/hibernate-core/src/main/java/org/hibernate/dialect/Dialect.java b/hibernate-core/src/main/java/org/hibernate/dialect/Dialect.java
index 991b46aa2f..e03e64e964 100644
--- a/hibernate-core/src/main/java/org/hibernate/dialect/Dialect.java
+++ b/hibernate-core/src/main/java/org/hibernate/dialect/Dialect.java
@@ -196,7 +196,6 @@ import org.hibernate.type.spi.TypeConfiguration;
 
 import org.jboss.logging.Logger;
 
-import jakarta.persistence.GenerationType;
 import jakarta.persistence.TemporalType;
 
 import static java.lang.Math.ceil;
diff --git a/hibernate-core/src/main/java/org/hibernate/dialect/SybaseDialect.java b/hibernate-core/src/main/java/org/hibernate/dialect/SybaseDialect.java
index 1804e57a3b..5b2c03ee4b 100644
--- a/hibernate-core/src/main/java/org/hibernate/dialect/SybaseDialect.java
+++ b/hibernate-core/src/main/java/org/hibernate/dialect/SybaseDialect.java
@@ -52,7 +52,7 @@ import org.hibernate.type.JavaObjectType;
 import org.hibernate.type.descriptor.jdbc.BlobJdbcType;
 import org.hibernate.type.descriptor.jdbc.ClobJdbcType;
 import org.hibernate.type.descriptor.jdbc.JdbcType;
-import org.hibernate.type.descriptor.jdbc.ObjectNullAsNullTypeJdbcType;
+import org.hibernate.type.descriptor.jdbc.ObjectNullAsBinaryTypeJdbcType;
 import org.hibernate.type.descriptor.jdbc.TinyIntAsSmallIntJdbcType;
 import org.hibernate.type.descriptor.jdbc.spi.JdbcTypeRegistry;
 
@@ -186,12 +186,12 @@ public class SybaseDialect extends AbstractTransactSQLDialect {
 		jdbcTypeRegistry.addDescriptor( Types.BLOB, BlobJdbcType.PRIMITIVE_ARRAY_BINDING );
 
 		// Sybase requires a custom binder for binding untyped nulls with the NULL type
-		typeContributions.contributeJdbcType( ObjectNullAsNullTypeJdbcType.INSTANCE );
+		typeContributions.contributeJdbcType( ObjectNullAsBinaryTypeJdbcType.INSTANCE );
 
 		// Until we remove StandardBasicTypes, we have to keep this
 		typeContributions.contributeType(
 				new JavaObjectType(
-						ObjectNullAsNullTypeJdbcType.INSTANCE,
+						ObjectNullAsBinaryTypeJdbcType.INSTANCE,
 						typeContributions.getTypeConfiguration()
 								.getJavaTypeRegistry()
 								.getDescriptor( Object.class )