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Compliant Solution (jarsigner)
Users can �����€š�š�����‚�š�������‚�š�š������€š�š�? but usually do not �����€š�š�����‚�š�������‚�š�š������€š�š�? explicitly check JAR file signatures at the command line. This may be an adequate solution for programs that require manual installation of JAR files. Any malicious tampering results in a SecurityException when the jarsigner tool is invoked with the -verify option.
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