src/share/classes/java/awt/event/KeyEvent.java

*** 28,37 ****
--- 28,39 ----
  import java.awt.Component;
  import java.awt.GraphicsEnvironment;
  import java.awt.Toolkit;
  import java.io.IOException;
  import java.io.ObjectInputStream;
+ import java.util.StringJoiner;
+ 
  import sun.awt.AWTAccessor;
  
  /**
   * An event which indicates that a keystroke occurred in a component.
   * <p>
*** 1556,1592 ****
       * @return string a text description of the combination of modifier
       *                keys that were held down during the event
       * @see InputEvent#getModifiersExText(int)
       */
      public static String getKeyModifiersText(int modifiers) {
!         StringBuilder buf = new StringBuilder();
          if ((modifiers & InputEvent.META_MASK) != 0) {
!             buf.append(Toolkit.getProperty("AWT.meta", "Meta"));
!             buf.append("+");
          }
          if ((modifiers & InputEvent.CTRL_MASK) != 0) {
!             buf.append(Toolkit.getProperty("AWT.control", "Ctrl"));
!             buf.append("+");
          }
          if ((modifiers & InputEvent.ALT_MASK) != 0) {
!             buf.append(Toolkit.getProperty("AWT.alt", "Alt"));
!             buf.append("+");
          }
          if ((modifiers & InputEvent.SHIFT_MASK) != 0) {
!             buf.append(Toolkit.getProperty("AWT.shift", "Shift"));
!             buf.append("+");
          }
          if ((modifiers & InputEvent.ALT_GRAPH_MASK) != 0) {
!             buf.append(Toolkit.getProperty("AWT.altGraph", "Alt Graph"));
!             buf.append("+");
          }
          if ((modifiers & InputEvent.BUTTON1_MASK) != 0) {
!             buf.append(Toolkit.getProperty("AWT.button1", "Button1"));
!             buf.append("+");
!         }
!         if (buf.length() > 0) {
!             buf.setLength(buf.length()-1); // remove trailing '+'
          }
          return buf.toString();
      }
  
  
--- 1558,1585 ----
       * @return string a text description of the combination of modifier
       *                keys that were held down during the event
       * @see InputEvent#getModifiersExText(int)
       */
      public static String getKeyModifiersText(int modifiers) {
!         StringJoiner buf = new StringJoiner("+");
          if ((modifiers & InputEvent.META_MASK) != 0) {
!             buf.add(Toolkit.getProperty("AWT.meta", "Meta"));
          }
          if ((modifiers & InputEvent.CTRL_MASK) != 0) {
!             buf.add(Toolkit.getProperty("AWT.control", "Ctrl"));
          }
          if ((modifiers & InputEvent.ALT_MASK) != 0) {
!             buf.add(Toolkit.getProperty("AWT.alt", "Alt"));
          }
          if ((modifiers & InputEvent.SHIFT_MASK) != 0) {
!             buf.add(Toolkit.getProperty("AWT.shift", "Shift"));
          }
          if ((modifiers & InputEvent.ALT_GRAPH_MASK) != 0) {
!             buf.add(Toolkit.getProperty("AWT.altGraph", "Alt Graph"));
          }
          if ((modifiers & InputEvent.BUTTON1_MASK) != 0) {
!             buf.add(Toolkit.getProperty("AWT.button1", "Button1"));
          }
          return buf.toString();
      }