src/java.desktop/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java

*** 850,860 ****
      }
  
      @Override
      public void updateFocusableWindowState() {
          final boolean isFocusable = isNativelyFocusableWindow();
!         setStyleBits(SHOULD_BECOME_KEY | SHOULD_BECOME_MAIN, isFocusable); // set both bits at once
      }
  
      @Override
      public void setAlwaysOnTop(boolean isAlwaysOnTop) {
          setStyleBits(ALWAYS_ON_TOP, isAlwaysOnTop);
--- 850,860 ----
      }
  
      @Override
      public void updateFocusableWindowState() {
          final boolean isFocusable = isNativelyFocusableWindow();
!         setStyleBits(SHOULD_BECOME_KEY | SHOULD_BECOME_MAIN | RESIZABLE, isFocusable); // set bits at once
      }
  
      @Override
      public void setAlwaysOnTop(boolean isAlwaysOnTop) {
          setStyleBits(ALWAYS_ON_TOP, isAlwaysOnTop);