diff --git a/hibernate-core/src/main/java/org/hibernate/query/criteria/JpaExpression.java b/hibernate-core/src/main/java/org/hibernate/query/criteria/JpaExpression.java
index e8e731c5a6..6692ec27ad 100644
--- a/hibernate-core/src/main/java/org/hibernate/query/criteria/JpaExpression.java
+++ b/hibernate-core/src/main/java/org/hibernate/query/criteria/JpaExpression.java
@@ -60,5 +60,12 @@ public interface JpaExpression<T> extends JpaSelection<T>, Expression<T> {
 	@Override
 	Predicate equalTo(Object value);
 
+	@Override
 	<X> JpaExpression<X> cast(Class<X> type);
+
+	@Override
+	Predicate notEqualTo(Expression<?> value);
+
+	@Override
+	Predicate notEqualTo(Object value);
 }
diff --git a/hibernate-core/src/main/java/org/hibernate/query/hql/internal/FullyQualifiedReflectivePathTerminal.java b/hibernate-core/src/main/java/org/hibernate/query/hql/internal/FullyQualifiedReflectivePathTerminal.java
index 1ab797ad93..9d82573a68 100644
--- a/hibernate-core/src/main/java/org/hibernate/query/hql/internal/FullyQualifiedReflectivePathTerminal.java
+++ b/hibernate-core/src/main/java/org/hibernate/query/hql/internal/FullyQualifiedReflectivePathTerminal.java
@@ -236,7 +236,7 @@ public class FullyQualifiedReflectivePathTerminal
 	}
 
 	@Override
-	public Expression cast(Class type) {
+	public SqmExpression cast(Class type) {
 		return null;
 	}
 
diff --git a/hibernate-core/src/main/java/org/hibernate/query/sqm/tree/expression/SqmExpression.java b/hibernate-core/src/main/java/org/hibernate/query/sqm/tree/expression/SqmExpression.java
index 408cd7fa29..d5938301cf 100644
--- a/hibernate-core/src/main/java/org/hibernate/query/sqm/tree/expression/SqmExpression.java
+++ b/hibernate-core/src/main/java/org/hibernate/query/sqm/tree/expression/SqmExpression.java
@@ -131,4 +131,9 @@ public interface SqmExpression<T> extends SqmSelectableNode<T>, JpaExpression<T>
 		return castAs( nodeBuilder().getTypeConfiguration().getBasicTypeForJavaType( type ) );
 	}
 
+	@Override
+	Predicate notEqualTo(Expression<?> value);
+
+	@Override
+	Predicate notEqualTo(Object value);
 }
diff --git a/hibernate-core/src/main/java/org/hibernate/query/sqm/tree/expression/SqmFieldLiteral.java b/hibernate-core/src/main/java/org/hibernate/query/sqm/tree/expression/SqmFieldLiteral.java
index 12e0a064e0..673fdccd48 100644
--- a/hibernate-core/src/main/java/org/hibernate/query/sqm/tree/expression/SqmFieldLiteral.java
+++ b/hibernate-core/src/main/java/org/hibernate/query/sqm/tree/expression/SqmFieldLiteral.java
@@ -175,7 +175,7 @@ public class SqmFieldLiteral<T> implements SqmExpression<T>, SqmExpressible<T>,
 	}
 
 	@Override
-	public <X> Expression<X> cast(Class<X> type) {
+	public <X> SqmExpression<X> cast(Class<X> type) {
 		return null;
 	}
 
diff --git a/hibernate-core/src/main/java/org/hibernate/query/sqm/tree/select/SqmSubQuery.java b/hibernate-core/src/main/java/org/hibernate/query/sqm/tree/select/SqmSubQuery.java
index 88d72de8df..33d2458d0b 100644
--- a/hibernate-core/src/main/java/org/hibernate/query/sqm/tree/select/SqmSubQuery.java
+++ b/hibernate-core/src/main/java/org/hibernate/query/sqm/tree/select/SqmSubQuery.java
@@ -731,7 +731,7 @@ public class SqmSubQuery<T> extends AbstractSqmSelectQuery<T> implements SqmSele
 	}
 
 	@Override
-	public <X> Expression<X> cast(Class<X> targetType) {
+	public <X> SqmExpression<X> cast(Class<X> targetType) {
 		return nodeBuilder().cast( this, targetType );
 	}