JTextPane Paste

I am just wondering...

Why is that for security reasons, one cannot do Ctrl+V to paste into
JTextPane?

People argue that you cannot read user's cb. But i don't need to read
user's clip board. the user will initiate the action.

I can paste into a textarea form control, and most of those forms i
paste into are not signed code???

so, why does JTextPage require signing before someone would just do
Ctrl+V?

I really think this is not a security issue, it's just unintended bug!.
because, if you can paste into a textarea on a webpage, using CTRL + V,
then you should be able to paste into the same JTextPane on the same
webpage.

Any ideas?

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