870N/A @summary verifies that MouseEvent could be constructed correctly for mouse extra buttons in regard to sun.awt.enableExtraMouseButtons property
870N/A * verify that user can't create the MouseEvent? with button4|5|... when property "sun.awt.enableExtraMouseButtons"=false
870N/A * verify that user can create the MouseEvent? with button1|2|3 when property "sun.awt.enableExtraMouseButtons"=false
870N/A System.out.println(Toolkit.getDefaultToolkit().getDesktopProperty("sun.awt.enableExtraMouseButtons"));
870N/A throw new RuntimeException("Stage 1 FAILED: MouseEvent CTOR accepted the extra button " + (buttonId+1) + " instead of throwing an exception.");
870N/A } catch (IllegalArgumentException e){
870N/A throw new RuntimeException("Stage 2 FAILED: MouseEvent CTOR accepted the extra button " + (buttonId+1) + " instead of throwing an exception.");
870N/A } catch (IllegalArgumentException e){