Copy/Paste not working in a signed Applet

Question

I\'ve a signed applet (which verifies correctly with jarsigner) that for some reason will not allow copy and paste from the system clipboard into a

Answer 1

Besides Dennis' overview, see Copy in sand-boxed app. in 1.6.0_24+ at the OTN.

While Ctrl-c copy no longer works by default, it is possible to add the functionality back in for any applet run in a 'Next Generation' Java Plug-In. Since Java Web Start existed, JWS provided sand-boxed copy via. the JNLP API's javax.jnlp.ClipboardService, & since Sun 1.6.0_10, & the next gen. plug-in, embedded applets can be deployed using JWS & can access the JNLP API.

See also

• http://pscode.org/prop/js.html. Direct link to the test applet used in that thread. It offers copy ability in a sand-boxed applet. If it works on the problem machine (browser, set-up ..whatever) you should be able to rework it to offer (unprompted) paste in a signed applet.
• Frame based Demo. of the ClipboardService, with source and build file.