Examples of sun.security.action.GetPropertyAction

sun.security.action.GetPropertyAction
A convenience class for retrieving the string value of a system property as a privileged action.
An instance of this class can be used as the argument of AccessController.doPrivileged.
The following code retrieves the value of the system property named "prop" as a privileged action:
```
 String s = java.security.AccessController.doPrivileged (new GetPropertyAction("prop")); 
```
@author Roland Schemers @see java.security.PrivilegedAction @see java.security.AccessController @since 1.2

        // deliver which don't have a class-path attribute. If one of
        // these jars is changed to include such an attribute this code
        // must be changed.
        if (javaHome == null) {
            javaHome = AccessController.doPrivileged(
                new GetPropertyAction("java.home"));
        }
        if (jarNames == null) {
            String[] names = new String[10];
            String fileSep = File.separator;
            int i = 0;

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    private final char colon;
    private final String javaHome;


    public UnixFileSystem() {
        slash = AccessController.doPrivileged(
            new GetPropertyAction("file.separator")).charAt(0);
        colon = AccessController.doPrivileged(
            new GetPropertyAction("path.separator")).charAt(0);
        javaHome = AccessController.doPrivileged(
            new GetPropertyAction("java.home"));
    }

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        }
    }


    public static URLClassPath getBootstrapClassPath() {
        String prop = AccessController.doPrivileged(
            new GetPropertyAction("sun.boot.class.path"));
        URL[] urls;
        if (prop != null) {
            final String path = prop;
            urls = (URL[])AccessController.doPrivileged(
                new PrivilegedAction() {

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            if (!sm.checkTopLevelWindow(this)) {
                // make sure the privileged action is only
                // for getting the property! We don't want the
                // above checkTopLevelWindow call to always succeed!
                warningString = (String) AccessController.doPrivileged(
                      new GetPropertyAction("awt.appletWarning",
                                            "Java Applet Window"));
            }
        }
    }

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     **/
    private static Constructor<? extends LogFile>
        getLogClassConstructor() {


        String logClassName =  ((String) AccessController.doPrivileged(
            new GetPropertyAction("sun.rmi.log.class")));
        if (logClassName != null) {
            try {
                ClassLoader loader =
                    AccessController.doPrivileged(
                        new PrivilegedAction<ClassLoader>() {

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        }
        return buf.toString();
    }


    private static boolean getBuildInternal() {
        String javaVersion = AccessController.doPrivileged(new GetPropertyAction("java.version"));
        return javaVersion != null && javaVersion.contains("internal");
    }

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            }


            /* Look up the class name */
            if (handlerClassName == null) {
                handlerClassName = ((String) AccessController.doPrivileged(
                    new GetPropertyAction(handlerPropName)));
                if (handlerClassName == null) {
                    handlerClassName = NO_HANDLER; /* Do not try this again */
                    return false;
                }
            }

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        return System.getProperty("java.library.path");
    }


    public String   getBootClassPath( ) {
        PrivilegedAction<String> pa
            = new GetPropertyAction("sun.boot.class.path");
        String result =  AccessController.doPrivileged(pa);
        return result;
    }

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    /**
     * Returns the value of the java.rmi.server.hostname property.
     */
    private static String getHostnameProperty() {
        return AccessController.doPrivileged(
            new GetPropertyAction("java.rmi.server.hostname"));
    }

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     */
    public static Locale getStartupLocale() {
        if (startupLocale == null) {
            String language, region, country, variant;
            language = (String) AccessController.doPrivileged(
                            new GetPropertyAction("user.language", "en"));
            // for compatibility, check for old user.region property
            region = (String) AccessController.doPrivileged(
                            new GetPropertyAction("user.region"));
            if (region != null) {
                // region can be of form country, country_variant, or _variant
                int i = region.indexOf('_');
                if (i >= 0) {
                    country = region.substring(0, i);
                    variant = region.substring(i + 1);
                } else {
                    country = region;
                    variant = "";
                }
            } else {
                country = (String) AccessController.doPrivileged(
                                new GetPropertyAction("user.country", ""));
                variant = (String) AccessController.doPrivileged(
                                new GetPropertyAction("user.variant", ""));
            }
            startupLocale = new Locale(language, country, variant);
        }
        return startupLocale;
    }

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