src/share/classes/java/util/ArrayList.java

*** 607,621 ****
       * (If {@code toIndex==fromIndex}, this operation has no effect.)
       *
       * @throws IndexOutOfBoundsException if {@code fromIndex} or
       *         {@code toIndex} is out of range
       *         ({@code fromIndex < 0 ||
-      *          fromIndex >= size() ||
       *          toIndex > size() ||
       *          toIndex < fromIndex})
       */
      protected void removeRange(int fromIndex, int toIndex) {
          modCount++;
          int numMoved = size - toIndex;
          System.arraycopy(elementData, toIndex, elementData, fromIndex,
                           numMoved);
  
--- 607,624 ----
       * (If {@code toIndex==fromIndex}, this operation has no effect.)
       *
       * @throws IndexOutOfBoundsException if {@code fromIndex} or
       *         {@code toIndex} is out of range
       *         ({@code fromIndex < 0 ||
       *          toIndex > size() ||
       *          toIndex < fromIndex})
       */
      protected void removeRange(int fromIndex, int toIndex) {
+         if (fromIndex > toIndex) {
+             throw new IndexOutOfBoundsException(
+                     outOfBoundsMsg(fromIndex, toIndex));
+         }
          modCount++;
          int numMoved = size - toIndex;
          System.arraycopy(elementData, toIndex, elementData, fromIndex,
                           numMoved);
  
*** 654,663 ****
--- 657,673 ----
      private String outOfBoundsMsg(int index) {
          return "Index: "+index+", Size: "+size;
      }
  
      /**
+      * A version used in checking (fromIndex > toIndex) condition
+      */
+     private static String outOfBoundsMsg(int fromIndex, int toIndex) {
+         return "From Index: " + fromIndex + " > To Index: " + toIndex;
+     }
+ 
+     /**
       * Removes from this list all of its elements that are contained in the
       * specified collection.
       *
       * @param c collection containing elements to be removed from this list
       * @return {@code true} if this list changed as a result of the call