HHH-5811 : Flush causes update query on field of type Byte[]

(cherry picked from commit 4007655045)

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

@@ -27,6 +27,7 @@ import java.io.ByteArrayInputStream;
 import java.io.InputStream;
 import java.sql.Blob;
 import java.sql.SQLException;
+import java.util.Arrays;
 
 import org.hibernate.HibernateException;
 import org.hibernate.engine.jdbc.BinaryStream;
@@ -45,6 +46,20 @@ public class ByteArrayTypeDescriptor extends AbstractTypeDescriptor<Byte[]> {
 	public ByteArrayTypeDescriptor() {
 		super( Byte[].class, ArrayMutabilityPlan.INSTANCE );
 	}
+	@Override
+	public boolean areEqual(Byte[] one, Byte[] another) {
+		return one == another
+				|| ( one != null && another != null && Arrays.equals(one, another) );
+	}
+	@Override
+	public int extractHashCode(Byte[] bytes) {
+		int hashCode = 1;
+		for ( byte aByte : bytes ) {
+			hashCode = 31 * hashCode + aByte;
+		}
+		return hashCode;
+	}
+
 	@Override
 	public String toString(Byte[] bytes) {
 		final StringBuilder buf = new StringBuilder();

hibernate-core/src/test/java/org/hibernate/test/annotations/lob/VersionedLobTest.java

@@ -30,6 +30,7 @@ import org.hibernate.Transaction;
 import org.hibernate.testing.DialectChecks;
 import org.hibernate.testing.FailureExpected;
 import org.hibernate.testing.RequiresDialectFeature;
+import org.hibernate.testing.TestForIssue;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
@@ -146,7 +147,7 @@ public class VersionedLobTest extends AbstractLobTest<VersionedBook, VersionedCo
 	}
 
 	@Test
-	@FailureExpected( jiraKey = "HHH-5811")
+	@TestForIssue( jiraKey = "HHH-5811")
 	public void testVersionUnchangedByteArray() throws Exception {
 		Session s;
 		Transaction tx;