Serialization fix

pom.xml

@@ -37,6 +37,11 @@
 	</dependencyManagement>
 
 	<dependencies>
+			<dependency>
+			<groupId>org.glassfish.jersey.media</groupId>
+			<artifactId>jersey-media-json-jackson</artifactId>
+		</dependency>
+	
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>

src/main/java/org/gcube/data/transfer/model/TransferCapabilities.java

@@ -15,6 +15,8 @@ import org.gcube.data.transfer.model.options.DirectTransferOptions;
 import org.gcube.data.transfer.model.options.HttpDownloadOptions;
 import org.gcube.data.transfer.model.options.TransferOptions;
 
+import com.fasterxml.jackson.annotation.JsonProperty;
+
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -43,7 +45,7 @@ public class TransferCapabilities {
 		@XmlElementRef(type = DirectTransferOptions.class),
 		@XmlElementRef(type = HttpDownloadOptions.class),
 	})
-//	@JsonProperty("availableMeans")
+	@JsonProperty("availableMeans")
 	private Set<TransferOptions> availableMeans;
 
 	@XmlElementWrapper