Examples of org.apache.harmony.rmi.common.CreateThreadAction

org.apache.harmony.rmi.common.CreateThreadAction
Action for privileged Threads creation. There are 2 ThreadGroups used in RMI runtime: 1) System ThreadGroup, i.e. the topmost non-null ThreadGroup. All RMI internal threads are created in this group 2) Non-system ThreadGroup, i.e. the child of the system ThreadGroup. There are 2 cases when the thread is created in this group: a) When the remote call is accepted on the server side b) When the unreferenced thread is started There are 2 reasons why 2 threads are needed: 1) If we create all threads in the system ThreadGroup than if the implementation of remote method has the code starting the new thread, we'll get AccessControllException requiring java.lang.RuntimePermission("modifyThreadGroup") and java.lang.RuntimePermission("modifyThread") permissions because it's not allowed by default to create a new thread in the system group 2) If we create all threads (including RMI internal ones) in non-system ThreadGroup then the malicious code could potentially interrupt RMI internal threads by using Thread.enumerate() static method. @author Mikhail A. Markov @version $Revision: 1.1.2.2 $

                vmidTable.put(vmid, s);
            }


            if (expTracker == null) {
                (expTracker = (Thread) AccessController.doPrivileged(
                        new CreateThreadAction(new ExpirationTracker(),
                                "ExpirationTracker", true))).start(); //$NON-NLS-1$
            }


            for (int i = 0; i < ids.length; ++i) {
                s.add(ids[i]);

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                rref, sref.getObjId(), sref, stub);
        exportedObjs.add(info);


        if (scav == null) {
            (scav = (Thread) AccessController.doPrivileged(
                    new CreateThreadAction(new Scavenger(),
                            "Scavenger", false))).start(); //$NON-NLS-1$
        }


        if (isSystem) {
            rref.makeStrong(true);

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        synchronized (callsLock) {
            ++activeCallsNum;


            if (scav == null) {
                (scav = (Thread) AccessController.doPrivileged(
                        new CreateThreadAction(new Scavenger(),
                                "Scavenger", false))).start(); //$NON-NLS-1$
            }
        }
    }

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            info.renewTime = System.currentTimeMillis();
        }


        if (lRenewer == null) {
            (lRenewer = (Thread) AccessController.doPrivileged(
                    new CreateThreadAction(new LeaseRenewer(),
                            "LeaseRenewer", true))).start(); //$NON-NLS-1$
        }
    }

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                renewTable.remove(id);
                cleanSet.add(id);


                if (cleanCaller == null) {
                    (cleanCaller = ((Thread) AccessController.doPrivileged(
                            new CreateThreadAction(new CleanCaller(this),
                                    "CleanCaller for " + ep, true)))).start(); //$NON-NLS-1$
                } else {
                    AccessController.doPrivileged(
                            new InterruptThreadAction(cleanCaller));
                }

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                return mgr;
            }
        }
        mgr = new ServerConnectionManager(ep);
        ((Thread) AccessController.doPrivileged(
                new CreateThreadAction(mgr, "ServerConnectionManager[" //$NON-NLS-1$
                        + mgr.getEndpoint() + "]", true))).start(); //$NON-NLS-1$
        if (tmpl == null) {
            tmpl = Endpoint.createTemplate(ep);
        }
        localEps.put(tmpl, mgr);

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        /*
         * Start the thread in non-system group
         * (see comment for CreateThreadAction class).
         */
        Thread connThread = (Thread) AccessController.doPrivileged(
                new CreateThreadAction(conn, "Call from " + conn.ep, true, //$NON-NLS-1$
                        false));
        connThread.start();


        if (transportLog.isLoggable(RMILog.VERBOSE)) {
            // rmi.log.10A=Accepted {0}

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        // does not contain dots, so we presume that getHostName()
        // did not return fqdn
        String addr = iaddr.getHostAddress();
        FQDNGetter getter = new FQDNGetter(addr);
        Thread fqdnThread = (Thread) AccessController.doPrivileged(
                new CreateThreadAction(getter, "FQDN getter.", true)); //$NON-NLS-1$


        try {
            synchronized (getter) {
                fqdnThread.start();
                getter.wait(localHostNameTimeout);

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             * from exiting while unreferencing the object.
             * The thread is started in non-system group
             * (see comment for CreateThreadAction class).
             */
            Thread uThread = ((Thread) AccessController.doPrivileged(
                    new CreateThreadAction(new Runnable() {
                        public void run() {
                            AccessController.doPrivileged(
                                    new PrivilegedAction() {
                                        public Object run() {
                                            ((Unreferenced) obj).unreferenced();

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                vmidTable.put(vmid, s);
            }


            if (expTracker == null) {
                (expTracker = (Thread) AccessController.doPrivileged(
                        new CreateThreadAction(new ExpirationTracker(),
                                "ExpirationTracker", true))).start(); //$NON-NLS-1$
            }


            for (int i = 0; i < ids.length; ++i) {
                s.add(ids[i]);

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Related Classes of org.apache.harmony.rmi.common.CreateThreadAction

org.apache.harmony.rmi.server.ClientDGC

org.apache.harmony.rmi.server.ClientDGC$RenewInfo

org.apache.harmony.rmi.server.DGCImpl

org.apache.harmony.rmi.server.ExportManager

org.apache.harmony.rmi.server.RMIObjectInfo

org.apache.harmony.rmi.server.ServerConnectionManager

org.apache.harmony.rmi.transport.Endpoint

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