8271603: Unnecessary Vector usage in java.desktop

src/java.desktop/share/classes/javax/swing/JMenu.java

@@ -1336,8 +1336,7 @@ private MenuElement[] buildMenuElementArray(JMenu leaf) {
                 break;
             }
         }
-        MenuElement[] me = new MenuElement[elements.size()];
-        elements.toArray(me);
+        MenuElement[] me = elements.toArray(new MenuElement[0]);
         return me;
     }
 

src/java.desktop/share/classes/javax/swing/JOptionPane.java

@@ -2349,10 +2349,7 @@ private void writeObject(ObjectOutputStream s) throws IOException {
                 if(options[counter] instanceof Serializable)
                     serOptions.add(options[counter]);
             if(serOptions.size() > 0) {
-                int             optionCount = serOptions.size();
-                Object[]        arrayOptions = new Object[optionCount];
-
-                serOptions.toArray(arrayOptions);
+                Object[] arrayOptions = serOptions.toArray(new Object[0]);
                 values.addElement("options");
                 values.addElement(arrayOptions);
             }

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

@@ -1191,8 +1191,7 @@ void updateBidi( DefaultDocumentEvent chng ) {
             removedElems[i] = bidiRoot.getElement(removeFromIndex+i);
         }
 
-        Element[] addedElems = new Element[ newElements.size() ];
-        newElements.toArray( addedElems );
+        Element[] addedElems = newElements.toArray(new Element[0]);
 
         // Update the change record.
         ElementEdit ee = new ElementEdit( bidiRoot, removeFromIndex,

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

@@ -2108,8 +2108,7 @@ Element join(Element p, Element left, Element right, int rmOffs0, int rmOffs1) {
                 }
 
                 // install the children
-                Element[] c = new Element[children.size()];
-                children.toArray(c);
+                Element[] c = children.toArray(new Element[0]);
                 ((BranchElement)to).replace(0, 0, c);
                 return to;
             } else {

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

@@ -4267,8 +4267,7 @@ else if (rCount == 0) {
                 }
             }
             if (keyStrokes != null) {
-                retValue = new KeyStroke[keyStrokes.size()];
-                keyStrokes.toArray(retValue);
+                retValue = keyStrokes.toArray(new KeyStroke[0]);
             }
             return retValue;
         }

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

@@ -302,8 +302,7 @@ void splitZone(int index, int offs0, int offs1) {
             zones.add(createZone(offs0, offs));
         } while (offs < offs1);
         View oldZone = getView(index);
-        View[] newZones = new View[zones.size()];
-        zones.toArray(newZones);
+        View[] newZones = zones.toArray(new View[0]);
         replace(index, 1, newZones);
     }
 

src/java.desktop/share/classes/javax/swing/text/rtf/RTFAttributes.java

@@ -125,10 +125,7 @@ class RTFAttributes
         a.add(new AssertiveAttribute(DOC, Constants.WidowControl,
                                             "widowctrl", True));
 
-
-        RTFAttribute[] attrs = new RTFAttribute[a.size()];
-        a.toArray(attrs);
-        attributes = attrs;
+        attributes = a.toArray(new RTFAttribute[0]);
     }
 
     static Dictionary<String, RTFAttribute> attributesByKeyword()

src/java.desktop/share/classes/javax/swing/text/rtf/RTFGenerator.java

@@ -101,8 +101,7 @@ static class CharacterKeywordPair
             pair.character = textKeywordDictionary.get(pair.keyword).charAt(0);
             tempPairs.add(pair);
         }
-        textKeywords = new CharacterKeywordPair[tempPairs.size()];
-        tempPairs.toArray(textKeywords);
+        textKeywords = tempPairs.toArray(new CharacterKeywordPair[0]);
     }
 
     static final char[] hexdigits = { '0', '1', '2', '3', '4', '5', '6', '7',

src/java.desktop/windows/classes/sun/awt/Win32GraphicsDevice.java

@@ -235,8 +235,7 @@ public GraphicsConfiguration[] getConfigurations() {
                     }
                 }
             }
-            configs = new GraphicsConfiguration[v.size()];
-            v.toArray(configs);
+            configs = v.toArray(new GraphicsConfiguration[0]);
         }
         return configs.clone();
     }