diff --git a/src/main/java/org/gcube/gcat/client/Item.java b/src/main/java/org/gcube/gcat/client/Item.java
index f37afb2..ece0301 100644
--- a/src/main/java/org/gcube/gcat/client/Item.java
+++ b/src/main/java/org/gcube/gcat/client/Item.java
@@ -54,7 +54,7 @@ public class Item extends GCatClient implements org.gcube.gcat.api.interfaces.It
 		return super.list(queryParams);
 	}
 	
-	public String create(String json, boolean socialPost) {
+	public String create(String json, boolean socialPost) throws WebApplicationException {
 		try {
 			Map<String,String> queryParams = new HashMap<>();
 			queryParams.put(GCatConstants.SOCIAL_POST_PARAMETER, String.valueOf(socialPost));
@@ -67,22 +67,27 @@ public class Item extends GCatClient implements org.gcube.gcat.api.interfaces.It
 	}
 	
 	@Override
-	public String create(String json) {
+	public String create(String json) throws WebApplicationException {
 		return super.create(json);
 	}
 
 	@Override
-	public String read(String name) {
+	public String read(String name) throws WebApplicationException {
 		return super.read(name);
 	}
 
 	@Override
-	public String update(String name, String json) {
+	public String update(String name, String json) throws WebApplicationException {
 		return super.update(json, name);
 	}
 
 	@Override
-	public Void delete(String name) {
+	public String patch(String name, String json) throws WebApplicationException {
+		return super.patch(json, name);
+	}
+	
+	@Override
+	public Void delete(String name) throws WebApplicationException {
 		super.delete(false, name);
 		return null;
 	}