src/java.desktop/share/classes/javax/swing/text/WrappedPlainView.java

@@ -464,11 +464,11 @@
      * @return the tab stop, measured in points >= 0
      */
     public float nextTabStop(float x, int tabOffset) {
         if (tabSize == 0)
             return x;
-        float ntabs = (x - tabBase) / tabSize;
+        int ntabs = (int) ((x - tabBase) / tabSize);
         return tabBase + ((ntabs + 1) * tabSize);
     }
 
 
     // --- View methods -------------------------------------