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Java Fingerprint

Description: This function fingerprints Java functionality that the client's device is utilizing via the navigator.javaEnabled object.

Issues: None.

Returns: true if Java is enabled or false if Java is disabled.

Entropy: ~1.0 bits

Output for your computer is:

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function fingerprint_java() {
    "use strict";
    var strOnError, strJavaEnabled, strOut;

    strOnError = "Error";
    strJavaEnabled = null;
    strOut = null;

    try {
        if (navigator.javaEnabled()) {
            strJavaEnabled = "true";
        } else {
            strJavaEnabled = "false";
        }
        strOut = strJavaEnabled;
        return strOut;
    } catch (err) {
        return strOnError;
    }
}