Netbeans 6.8 the breakpoint icon isn't a pink square but a vertically cutted in half pink square

I'm开发者_JS百科 using Netbeans 6.8. When I add a break point an icon is added next to the line of code. This the icon is not a pink square, but a vertically cut in half pink square.

Is this the new icon that symbolizes the break point? I expected a non-broken pink square

this icon symbolizes that the break point has been set at an invalid location.