It has not been fixed, not even in 10.04. Windows do close, but just visually, because they remain open in the background. I have tested this in www.elchat.com (spanish) , they allow you to open up to 2 private conversations at the same time. When you close them, and want to open a new one, they will say that you have already 2 conversations open.... in Windows it does not happen, so it is an specific bug for Linux Java versions......... so no, it has not been fixed.
It has not been fixed, not even in 10.04. Windows do close, but just visually, because they remain open in the background. I have tested this in www.elchat.com (spanish) , they allow you to open up to 2 private conversations at the same time. When you close them, and want to open a new one, they will say that you have already 2 conversations open.... in Windows it does not happen, so it is an specific bug for Linux Java versions......... so no, it has not been fixed.