diff --git a/src/main/java/org/gcube/accounting/datamodel/basetypes/CalculateJobWallDuration.java b/src/main/java/org/gcube/accounting/datamodel/basetypes/CalculateJobWallDuration.java
deleted file mode 100644
index ce6cf27..0000000
--- a/src/main/java/org/gcube/accounting/datamodel/basetypes/CalculateJobWallDuration.java
+++ /dev/null
@@ -1,16 +0,0 @@
-/**
- * 
- */
-package org.gcube.accounting.datamodel.basetypes;
-
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
-
-import org.gcube.documentstore.records.implementation.FieldDecorator;
-
-@Target(ElementType.FIELD)
-@Retention(RetentionPolicy.RUNTIME)
-@FieldDecorator(action=CalculateJobWallDurationAction.class) 
-public @interface CalculateJobWallDuration {}
\ No newline at end of file
diff --git a/src/main/java/org/gcube/accounting/datamodel/basetypes/CalculateTaskWallDuration.java b/src/main/java/org/gcube/accounting/datamodel/basetypes/CalculateTaskWallDuration.java
deleted file mode 100644
index 1182863..0000000
--- a/src/main/java/org/gcube/accounting/datamodel/basetypes/CalculateTaskWallDuration.java
+++ /dev/null
@@ -1,16 +0,0 @@
-/**
- * 
- */
-package org.gcube.accounting.datamodel.basetypes;
-
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
-
-import org.gcube.documentstore.records.implementation.FieldDecorator;
-
-@Target(ElementType.FIELD)
-@Retention(RetentionPolicy.RUNTIME)
-@FieldDecorator(action=CalculateTaskWallDurationAction.class) 
-public @interface CalculateTaskWallDuration {}
\ No newline at end of file