Access to local resources
The following classes access to the clipboard or load native libraries:
JFFieldDate, JFFieldDouble, JFFieldFilled, JFFieldLong, JFFieldString, JFTableView, JFToolbar, JFTree, JFTextArea, and JFChoice in GUI Library
If the applet which uses any of the above classes does not exist on the local machine and is downloaded from a Web server, the access to the local resources is limited. To use such an applet, take one of the followings:
Use signed applets.
Add the minimum security authority required to the java.policy file.
In general, native libraries involve security problems because the libraries can freely access the resources on the client machine.