diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/AvailableInAnotherContext.java b/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/AvailableInAnotherContext.java
new file mode 100644
index 0000000..c8d4937
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/AvailableInAnotherContext.java
@@ -0,0 +1,5 @@
+package org.gcube.informationsystem.resourceregistry.api.exceptions;
+
+public interface AvailableInAnotherContext {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/entity/EntityAvailableInAnotherContextException.java b/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/entity/EntityAvailableInAnotherContextException.java
new file mode 100644
index 0000000..7d87657
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/entity/EntityAvailableInAnotherContextException.java
@@ -0,0 +1,27 @@
+package org.gcube.informationsystem.resourceregistry.api.exceptions.entity;
+
+import org.gcube.informationsystem.resourceregistry.api.exceptions.AvailableInAnotherContext;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.er.ERAvailableInAnotherContextException;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public class EntityAvailableInAnotherContextException extends ERAvailableInAnotherContextException implements AvailableInAnotherContext {
+
+	/**
+	 * Generated Serial Version UID
+	 */
+	private static final long serialVersionUID = 6169522499840275744L;
+
+	public EntityAvailableInAnotherContextException(String message) {
+		super(message);
+	}
+
+	public EntityAvailableInAnotherContextException(Throwable cause) {
+		super(cause);
+	}
+
+	public EntityAvailableInAnotherContextException(String message, Throwable cause) {
+		super(message, cause);
+	}
+}
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/entity/facet/FacetAvailableInAnotherContextException.java b/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/entity/facet/FacetAvailableInAnotherContextException.java
new file mode 100644
index 0000000..8a14d90
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/entity/facet/FacetAvailableInAnotherContextException.java
@@ -0,0 +1,28 @@
+package org.gcube.informationsystem.resourceregistry.api.exceptions.entity.facet;
+
+import org.gcube.informationsystem.resourceregistry.api.exceptions.AvailableInAnotherContext;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.entity.EntityAvailableInAnotherContextException;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public class FacetAvailableInAnotherContextException extends EntityAvailableInAnotherContextException implements AvailableInAnotherContext {
+
+	/**
+	 * Generated Serial Version UID
+	 */
+	private static final long serialVersionUID = -7502387344011649559L;
+
+	public FacetAvailableInAnotherContextException(String message) {
+		super(message);
+	}
+
+	public FacetAvailableInAnotherContextException(Throwable cause) {
+		super(cause);
+	}
+	
+	public FacetAvailableInAnotherContextException(String message, Throwable cause) {
+		super(message, cause);
+	}
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/entity/resource/ResourceAvailableInAnotherContextException.java b/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/entity/resource/ResourceAvailableInAnotherContextException.java
new file mode 100644
index 0000000..5146217
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/entity/resource/ResourceAvailableInAnotherContextException.java
@@ -0,0 +1,28 @@
+package org.gcube.informationsystem.resourceregistry.api.exceptions.entity.resource;
+
+import org.gcube.informationsystem.resourceregistry.api.exceptions.AvailableInAnotherContext;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.entity.EntityAvailableInAnotherContextException;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public class ResourceAvailableInAnotherContextException extends EntityAvailableInAnotherContextException implements AvailableInAnotherContext {
+
+	/**
+	 * Generated Serial Version UID
+	 */
+	private static final long serialVersionUID = -8722827977850574469L;
+
+	public ResourceAvailableInAnotherContextException(String message) {
+		super(message);
+	}
+
+	public ResourceAvailableInAnotherContextException(Throwable cause) {
+		super(cause);
+	}
+	
+	public ResourceAvailableInAnotherContextException(String message, Throwable cause) {
+		super(message, cause);
+	}
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/er/ERAvailableInAnotherContextException.java b/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/er/ERAvailableInAnotherContextException.java
new file mode 100644
index 0000000..be7e4f8
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/er/ERAvailableInAnotherContextException.java
@@ -0,0 +1,28 @@
+package org.gcube.informationsystem.resourceregistry.api.exceptions.er;
+
+import org.gcube.informationsystem.resourceregistry.api.exceptions.AvailableInAnotherContext;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ * 
+ */
+public class ERAvailableInAnotherContextException extends ERException implements AvailableInAnotherContext {
+
+	/**
+	 * Generated Serial Version UID
+	 */
+	private static final long serialVersionUID = -7499131763751652582L;
+
+	public ERAvailableInAnotherContextException(String message) {
+		super(message);
+	}
+	
+	public ERAvailableInAnotherContextException(Throwable cause) {
+		super(cause);
+	}
+	
+	public ERAvailableInAnotherContextException(String message, Throwable cause) {
+		super(message, cause);
+	}
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/relation/RelationAvailableInAnotherContextException.java b/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/relation/RelationAvailableInAnotherContextException.java
new file mode 100644
index 0000000..0a50ac2
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/api/exceptions/relation/RelationAvailableInAnotherContextException.java
@@ -0,0 +1,28 @@
+package org.gcube.informationsystem.resourceregistry.api.exceptions.relation;
+
+import org.gcube.informationsystem.resourceregistry.api.exceptions.AvailableInAnotherContext;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.er.ERAvailableInAnotherContextException;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public class RelationAvailableInAnotherContextException extends ERAvailableInAnotherContextException implements AvailableInAnotherContext {
+
+	/**
+	 * Generated Serial Version UID
+	 */
+	private static final long serialVersionUID = -8555707367745327973L;
+
+	public RelationAvailableInAnotherContextException(String message) {
+		super(message);
+	}
+
+	public RelationAvailableInAnotherContextException(Throwable cause) {
+		super(cause);
+	}
+	
+	public RelationAvailableInAnotherContextException(String message, Throwable cause) {
+		super(message, cause);
+	}
+
+}