diff --git a/src/main/java/org/apache/commons/math3/geometry/euclidean/oned/IntervalsSet.java b/src/main/java/org/apache/commons/math3/geometry/euclidean/oned/IntervalsSet.java
index 6f55c10e9..7fa1057bc 100644
--- a/src/main/java/org/apache/commons/math3/geometry/euclidean/oned/IntervalsSet.java
+++ b/src/main/java/org/apache/commons/math3/geometry/euclidean/oned/IntervalsSet.java
@@ -272,6 +272,7 @@ public class IntervalsSet extends AbstractRegion<Euclidean1D, Euclidean1D> imple
     /** {@inheritDoc}
      * @since 3.3
      */
+    @Override
     public BoundaryProjection<Euclidean1D> projectToBoundary(final Point<Euclidean1D> point) {
 
         // get position of test point
diff --git a/src/main/java/org/apache/commons/math3/geometry/euclidean/oned/SubOrientedPoint.java b/src/main/java/org/apache/commons/math3/geometry/euclidean/oned/SubOrientedPoint.java
index 8d8f6c67c..05f8712ed 100644
--- a/src/main/java/org/apache/commons/math3/geometry/euclidean/oned/SubOrientedPoint.java
+++ b/src/main/java/org/apache/commons/math3/geometry/euclidean/oned/SubOrientedPoint.java
@@ -46,6 +46,7 @@ public class SubOrientedPoint extends AbstractSubHyperplane<Euclidean1D, Euclide
     }
 
     /** {@inheritDoc} */
+    @Override
     public boolean isEmpty() {
         return false;
     }
diff --git a/src/main/java/org/apache/commons/math3/geometry/spherical/oned/ArcsSet.java b/src/main/java/org/apache/commons/math3/geometry/spherical/oned/ArcsSet.java
index 08ec3adcc..1b9e74889 100644
--- a/src/main/java/org/apache/commons/math3/geometry/spherical/oned/ArcsSet.java
+++ b/src/main/java/org/apache/commons/math3/geometry/spherical/oned/ArcsSet.java
@@ -478,6 +478,7 @@ public class ArcsSet extends AbstractRegion<Sphere1D, Sphere1D> implements Itera
     /** {@inheritDoc}
      * @since 3.3
      */
+    @Override
     public BoundaryProjection<Sphere1D> projectToBoundary(final Point<Sphere1D> point) {
 
         // get position of test point
diff --git a/src/main/java/org/apache/commons/math3/geometry/spherical/oned/SubLimitAngle.java b/src/main/java/org/apache/commons/math3/geometry/spherical/oned/SubLimitAngle.java
index bf3cd43ad..672a6b44d 100644
--- a/src/main/java/org/apache/commons/math3/geometry/spherical/oned/SubLimitAngle.java
+++ b/src/main/java/org/apache/commons/math3/geometry/spherical/oned/SubLimitAngle.java
@@ -44,6 +44,7 @@ public class SubLimitAngle extends AbstractSubHyperplane<Sphere1D, Sphere1D> {
     }
 
     /** {@inheritDoc} */
+    @Override
     public boolean isEmpty() {
         return false;
     }