modules/controls/src/main/java/javafx/scene/control/DialogPane.java

@@ -928,11 +928,11 @@
         double minWidth = snappedLeftInset() +
                 (hasHeader() ? 0 : graphicMinWidth) +
                 Math.max(Math.max(headerMinWidth, expandableContentMinWidth), Math.max(contentMinWidth, buttonBarMinWidth)) +
                 snappedRightInset();
 
-        return snapSize(minWidth);
+        return snapSizeX(minWidth);
     }
 
     /** {@inheritDoc} */
     @Override protected double computeMinHeight(double width) {
         final boolean hasHeader = hasHeader();

@@ -961,11 +961,11 @@
                 Math.max(graphicMinHeight, contentMinHeight) +
                 expandableContentMinHeight +
                 buttonBarMinHeight +
                 snappedBottomInset();
 
-        return snapSize(minHeight);
+        return snapSizeY(minHeight);
     }
 
     /** {@inheritDoc} */
     @Override protected double computePrefWidth(double height) {
         double headerPrefWidth = hasHeader() ? getActualHeader().prefWidth(height) + 10 : 0;

@@ -982,11 +982,11 @@
         double prefWidth = snappedLeftInset() +
                (hasHeader() ? 0 : graphicPrefWidth) +
                Math.max(Math.max(headerPrefWidth, expandableContentPrefWidth), Math.max(contentPrefWidth, buttonBarPrefWidth)) +
                snappedRightInset();
 
-        return snapSize(prefWidth);
+        return snapSizeX(prefWidth);
     }
 
     /** {@inheritDoc} */
     @Override protected double computePrefHeight(double width) {
         final boolean hasHeader = hasHeader();

@@ -1014,11 +1014,11 @@
                Math.max(graphicPrefHeight, contentPrefHeight) +
                expandableContentPrefHeight +
                buttonBarPrefHeight +
                snappedBottomInset();
 
-        return snapSize(prefHeight);
+        return snapSizeY(prefHeight);
     }
 
 
 
     /**************************************************************************