updates for folder plugin

pom.xml

@@ -34,7 +34,7 @@
 	</dependencyManagement>
 	
 	<properties>
-		<jackson.version>2.8.11</jackson.version>
+		<jackson.version>2.15.3</jackson.version>
 	</properties>
    
 	<dependencies>

src/main/java/org/gcube/common/storagehub/model/items/GenericFileItem.java

@@ -16,8 +16,6 @@ import lombok.Setter;
 @Setter
 @RootNode(GENERICFILETYPE)
 public class GenericFileItem extends AbstractFileItem{
-
-	
 	
 	@NodeAttribute(value =CONTENT_NAME)
 	Content content;

src/main/java/org/gcube/common/storagehub/model/items/RootItem.java

@@ -1,6 +1,7 @@
 package org.gcube.common.storagehub.model.items;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonProperty;
 
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
@@ -15,6 +16,7 @@ public abstract class RootItem {
 
 	//for service internal use
 	@JsonIgnore
+    @JsonProperty(access = JsonProperty.Access.WRITE_ONLY)
 	transient Object relatedNode; 
 	
 	String id;

src/main/java/org/gcube/common/storagehub/model/items/nodes/PayloadBackend.java

@@ -12,8 +12,6 @@ import org.gcube.common.storagehub.model.annotations.Attribute;
 import org.gcube.common.storagehub.model.annotations.AttributeRootNode;
 import org.gcube.common.storagehub.model.annotations.NodeAttribute;
 
-import com.fasterxml.jackson.annotation.JsonIgnore;
-
 import lombok.AllArgsConstructor;
 import lombok.EqualsAndHashCode;
 import lombok.NoArgsConstructor;
@@ -29,7 +27,6 @@ public class PayloadBackend {
 	@Attribute(value= STORAGENAME)
 	private String storageName;
 	
-	@JsonIgnore
 	@NodeAttribute(value=PARAMETERS)
 	private Metadata parameters = new Metadata();
 	
@@ -37,7 +34,6 @@ public class PayloadBackend {
 		return storageName;
 	}
 	
-	@JsonIgnore
 	public Map<String, Object> getParameters(){
 		if (parameters ==null || parameters.getMap() == null )
 			return Collections.emptyMap();

src/main/java/org/gcube/common/storagehub/model/plugins/PluginParameters.java

@@ -15,5 +15,11 @@ public class PluginParameters {
 	public void add(String name, String value) {
 		this.parameters.put(name, value);
 	}
+
+	@Override
+	public String toString() {
+		return "PluginParameters [parameters=" + parameters + "]";
+	}
+	
 	
 }