Potential API usage risk of getSelection() in the project

[Gao-Chuan]

Hi folks,

We've observed that in the API call to ButtonModel javax.swing.ButtonGroup.getSelection(), there seems to be a missing check for a return value, which could potentially lead to a NullPointerException. This issue is evident in the code at the following link:

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Specifically, as noted in the library's documentation on line 140, the return value of this method can be null if no button has been selected:

@return the currently selected button model, null if none was selected yet

For further reference, please see the line 140 of the library code at this link.

Best wishes, 1phan