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Sign All Applet JAR filesApplets are back! And now applets can do more than ever before thanks to signed JAR files. By signing your JARs, you can get access to the filesystem and other resources that were previously off-limits, provided the user grants your applet those privileges. And signing JAR files is now very easy thanks to tools bundled with the JDK.However, be certain to sign all JAR files used by your Java applet. If you sign the JAR file with your main applet class, your applet will launch. If it later uses classes from another JAR file, though, you can run into trouble. If the newly-loaded class tries a restricted operation and its JAR file isn't signed, your applet will fail at that point with a security exception. Rather than waiting for this and debugging it when it occurs, save yourself the trouble and sign all of your JAR files up front.
You can create your own certificate using tools provided by the JDK.
Sign your JAR files with
Deploy all of your JAR files to a folder on your web server, add an
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