java.rmi.server.RemoteObjectInvocationHandler Java Examples

public Registry getObject ( final String command ) throws Exception {

        String host;
        int port;
        int sep = command.indexOf(':');
        if ( sep < 0 ) {
            port = new Random().nextInt(65535);
            host = command;
        }
        else {
            host = command.substring(0, sep);
            port = Integer.valueOf(command.substring(sep + 1));
        }
        ObjID id = new ObjID(new Random().nextInt()); // RMI registry
        TCPEndpoint te = new TCPEndpoint(host, port);
        UnicastRef ref = new UnicastRef(new LiveRef(id, te, false));
        RemoteObjectInvocationHandler obj = new RemoteObjectInvocationHandler(ref);
        Registry proxy = (Registry) Proxy.newProxyInstance(JRMPClient.class.getClassLoader(), new Class[] {
            Registry.class
        }, obj);
        return proxy;
    }
 

public Registry getObject ( String connection ) throws Exception {

        String host;
        int port;
        int sep = connection.indexOf(':');
        if ( sep < 0 ) {
            port = new Random().nextInt(65535);
            host = connection;
        }
        else {
            host = connection.substring(0, sep);
            port = Integer.valueOf(connection.substring(sep + 1));
        }
        ObjID id = new ObjID(new Random().nextInt()); // RMI registry
        TCPEndpoint te = new TCPEndpoint(host, port);
        UnicastRef ref = new UnicastRef(new LiveRef(id, te, false));
        RemoteObjectInvocationHandler obj = new RemoteObjectInvocationHandler(ref);
        Registry proxy = (Registry) Proxy.newProxyInstance(JRMPClient.class.getClassLoader(), new Class[] {
            Registry.class
        }, obj);
        return proxy;
    }
 

/**
 * Returns a proxy for the specified implClass.
 *
 * If both of the following criteria is satisfied, a dynamic proxy for
 * the specified implClass is returned (otherwise a RemoteStub instance
 * for the specified implClass is returned):
 *
 *    a) either the property java.rmi.server.ignoreStubClasses is true or
 *       a pregenerated stub class does not exist for the impl class, and
 *    b) forceStubUse is false.
 *
 * If the above criteria are satisfied, this method constructs a
 * dynamic proxy instance (that implements the remote interfaces of
 * implClass) constructed with a RemoteObjectInvocationHandler instance
 * constructed with the clientRef.
 *
 * Otherwise, this method loads the pregenerated stub class (which
 * extends RemoteStub and implements the remote interfaces of
 * implClass) and constructs an instance of the pregenerated stub
 * class with the clientRef.
 *
 * @param implClass the class to obtain remote interfaces from
 * @param clientRef the remote ref to use in the invocation handler
 * @param forceStubUse if true, forces creation of a RemoteStub
 * @throws IllegalArgumentException if implClass implements illegal
 * remote interfaces
 * @throws StubNotFoundException if problem locating/creating stub or
 * creating the dynamic proxy instance
 **/
public static Remote createProxy(Class<?> implClass,
                                 RemoteRef clientRef,
                                 boolean forceStubUse)
    throws StubNotFoundException
{
    Class<?> remoteClass;

    try {
        remoteClass = getRemoteClass(implClass);
    } catch (ClassNotFoundException ex ) {
        throw new StubNotFoundException(
            "object does not implement a remote interface: " +
            implClass.getName());
    }

    if (forceStubUse ||
        !(ignoreStubClasses || !stubClassExists(remoteClass)))
    {
        return createStub(remoteClass, clientRef);
    }

    final ClassLoader loader = implClass.getClassLoader();
    final Class<?>[] interfaces = getRemoteInterfaces(implClass);
    final InvocationHandler handler =
        new RemoteObjectInvocationHandler(clientRef);

    /* REMIND: private remote interfaces? */

    try {
        return AccessController.doPrivileged(new PrivilegedAction<Remote>() {
            public Remote run() {
                return (Remote) Proxy.newProxyInstance(loader,
                                                       interfaces,
                                                       handler);
            }});
    } catch (IllegalArgumentException e) {
        throw new StubNotFoundException("unable to create proxy", e);
    }
}
 

/**
 * Returns a proxy for the specified implClass.
 *
 * If both of the following criteria is satisfied, a dynamic proxy for
 * the specified implClass is returned (otherwise a RemoteStub instance
 * for the specified implClass is returned):
 *
 *    a) either the property java.rmi.server.ignoreStubClasses is true or
 *       a pregenerated stub class does not exist for the impl class, and
 *    b) forceStubUse is false.
 *
 * If the above criteria are satisfied, this method constructs a
 * dynamic proxy instance (that implements the remote interfaces of
 * implClass) constructed with a RemoteObjectInvocationHandler instance
 * constructed with the clientRef.
 *
 * Otherwise, this method loads the pregenerated stub class (which
 * extends RemoteStub and implements the remote interfaces of
 * implClass) and constructs an instance of the pregenerated stub
 * class with the clientRef.
 *
 * @param implClass the class to obtain remote interfaces from
 * @param clientRef the remote ref to use in the invocation handler
 * @param forceStubUse if true, forces creation of a RemoteStub
 * @throws IllegalArgumentException if implClass implements illegal
 * remote interfaces
 * @throws StubNotFoundException if problem locating/creating stub or
 * creating the dynamic proxy instance
 **/
public static Remote createProxy(Class<?> implClass,
                                 RemoteRef clientRef,
                                 boolean forceStubUse)
    throws StubNotFoundException
{
    Class<?> remoteClass;

    try {
        remoteClass = getRemoteClass(implClass);
    } catch (ClassNotFoundException ex ) {
        throw new StubNotFoundException(
            "object does not implement a remote interface: " +
            implClass.getName());
    }

    if (forceStubUse ||
        !(ignoreStubClasses || !stubClassExists(remoteClass)))
    {
        return createStub(remoteClass, clientRef);
    }

    final ClassLoader loader = implClass.getClassLoader();
    final Class<?>[] interfaces = getRemoteInterfaces(implClass);
    final InvocationHandler handler =
        new RemoteObjectInvocationHandler(clientRef);

    /* REMIND: private remote interfaces? */

    try {
        return AccessController.doPrivileged(new PrivilegedAction<Remote>() {
            public Remote run() {
                return (Remote) Proxy.newProxyInstance(loader,
                                                       interfaces,
                                                       handler);
            }});
    } catch (IllegalArgumentException e) {
        throw new StubNotFoundException("unable to create proxy", e);
    }
}
 

/**
 * Returns a proxy for the specified implClass.
 *
 * If both of the following criteria is satisfied, a dynamic proxy for
 * the specified implClass is returned (otherwise a RemoteStub instance
 * for the specified implClass is returned):
 *
 *    a) either the property java.rmi.server.ignoreStubClasses is true or
 *       a pregenerated stub class does not exist for the impl class, and
 *    b) forceStubUse is false.
 *
 * If the above criteria are satisfied, this method constructs a
 * dynamic proxy instance (that implements the remote interfaces of
 * implClass) constructed with a RemoteObjectInvocationHandler instance
 * constructed with the clientRef.
 *
 * Otherwise, this method loads the pregenerated stub class (which
 * extends RemoteStub and implements the remote interfaces of
 * implClass) and constructs an instance of the pregenerated stub
 * class with the clientRef.
 *
 * @param implClass the class to obtain remote interfaces from
 * @param clientRef the remote ref to use in the invocation handler
 * @param forceStubUse if true, forces creation of a RemoteStub
 * @throws IllegalArgumentException if implClass implements illegal
 * remote interfaces
 * @throws StubNotFoundException if problem locating/creating stub or
 * creating the dynamic proxy instance
 **/
public static Remote createProxy(Class<?> implClass,
                                 RemoteRef clientRef,
                                 boolean forceStubUse)
    throws StubNotFoundException
{
    Class<?> remoteClass;

    try {
        remoteClass = getRemoteClass(implClass);
    } catch (ClassNotFoundException ex ) {
        throw new StubNotFoundException(
            "object does not implement a remote interface: " +
            implClass.getName());
    }

    if (forceStubUse ||
        !(ignoreStubClasses || !stubClassExists(remoteClass)))
    {
        return createStub(remoteClass, clientRef);
    }

    final ClassLoader loader = implClass.getClassLoader();
    final Class<?>[] interfaces = getRemoteInterfaces(implClass);
    final InvocationHandler handler =
        new RemoteObjectInvocationHandler(clientRef);

    /* REMIND: private remote interfaces? */

    try {
        return AccessController.doPrivileged(new PrivilegedAction<Remote>() {
            public Remote run() {
                return (Remote) Proxy.newProxyInstance(loader,
                                                       interfaces,
                                                       handler);
            }});
    } catch (IllegalArgumentException e) {
        throw new StubNotFoundException("unable to create proxy", e);
    }
}
 

/**
 * Returns a proxy for the specified implClass.
 *
 * If both of the following criteria is satisfied, a dynamic proxy for
 * the specified implClass is returned (otherwise a RemoteStub instance
 * for the specified implClass is returned):
 *
 *    a) either the property java.rmi.server.ignoreStubClasses is true or
 *       a pregenerated stub class does not exist for the impl class, and
 *    b) forceStubUse is false.
 *
 * If the above criteria are satisfied, this method constructs a
 * dynamic proxy instance (that implements the remote interfaces of
 * implClass) constructed with a RemoteObjectInvocationHandler instance
 * constructed with the clientRef.
 *
 * Otherwise, this method loads the pregenerated stub class (which
 * extends RemoteStub and implements the remote interfaces of
 * implClass) and constructs an instance of the pregenerated stub
 * class with the clientRef.
 *
 * @param implClass the class to obtain remote interfaces from
 * @param clientRef the remote ref to use in the invocation handler
 * @param forceStubUse if true, forces creation of a RemoteStub
 * @throws IllegalArgumentException if implClass implements illegal
 * remote interfaces
 * @throws StubNotFoundException if problem locating/creating stub or
 * creating the dynamic proxy instance
 **/
public static Remote createProxy(Class<?> implClass,
                                 RemoteRef clientRef,
                                 boolean forceStubUse)
    throws StubNotFoundException
{
    Class<?> remoteClass;

    try {
        remoteClass = getRemoteClass(implClass);
    } catch (ClassNotFoundException ex ) {
        throw new StubNotFoundException(
            "object does not implement a remote interface: " +
            implClass.getName());
    }

    if (forceStubUse ||
        !(ignoreStubClasses || !stubClassExists(remoteClass)))
    {
        return createStub(remoteClass, clientRef);
    }

    final ClassLoader loader = implClass.getClassLoader();
    final Class<?>[] interfaces = getRemoteInterfaces(implClass);
    final InvocationHandler handler =
        new RemoteObjectInvocationHandler(clientRef);

    /* REMIND: private remote interfaces? */

    try {
        return AccessController.doPrivileged(new PrivilegedAction<Remote>() {
            public Remote run() {
                return (Remote) Proxy.newProxyInstance(loader,
                                                       interfaces,
                                                       handler);
            }});
    } catch (IllegalArgumentException e) {
        throw new StubNotFoundException("unable to create proxy", e);
    }
}
 

/**
 * Returns a proxy for the specified implClass.
 *
 * If both of the following criteria is satisfied, a dynamic proxy for
 * the specified implClass is returned (otherwise a RemoteStub instance
 * for the specified implClass is returned):
 *
 *    a) either the property java.rmi.server.ignoreStubClasses is true or
 *       a pregenerated stub class does not exist for the impl class, and
 *    b) forceStubUse is false.
 *
 * If the above criteria are satisfied, this method constructs a
 * dynamic proxy instance (that implements the remote interfaces of
 * implClass) constructed with a RemoteObjectInvocationHandler instance
 * constructed with the clientRef.
 *
 * Otherwise, this method loads the pregenerated stub class (which
 * extends RemoteStub and implements the remote interfaces of
 * implClass) and constructs an instance of the pregenerated stub
 * class with the clientRef.
 *
 * @param implClass the class to obtain remote interfaces from
 * @param clientRef the remote ref to use in the invocation handler
 * @param forceStubUse if true, forces creation of a RemoteStub
 * @throws IllegalArgumentException if implClass implements illegal
 * remote interfaces
 * @throws StubNotFoundException if problem locating/creating stub or
 * creating the dynamic proxy instance
 **/
public static Remote createProxy(Class<?> implClass,
                                 RemoteRef clientRef,
                                 boolean forceStubUse)
    throws StubNotFoundException
{
    Class<?> remoteClass;

    try {
        remoteClass = getRemoteClass(implClass);
    } catch (ClassNotFoundException ex ) {
        throw new StubNotFoundException(
            "object does not implement a remote interface: " +
            implClass.getName());
    }

    if (forceStubUse ||
        !(ignoreStubClasses || !stubClassExists(remoteClass)))
    {
        return createStub(remoteClass, clientRef);
    }

    final ClassLoader loader = implClass.getClassLoader();
    final Class<?>[] interfaces = getRemoteInterfaces(implClass);
    final InvocationHandler handler =
        new RemoteObjectInvocationHandler(clientRef);

    /* REMIND: private remote interfaces? */

    try {
        return AccessController.doPrivileged(new PrivilegedAction<Remote>() {
            public Remote run() {
                return (Remote) Proxy.newProxyInstance(loader,
                                                       interfaces,
                                                       handler);
            }});
    } catch (IllegalArgumentException e) {
        throw new StubNotFoundException("unable to create proxy", e);
    }
}
 

/**
 * Returns a proxy for the specified implClass.
 *
 * If both of the following criteria is satisfied, a dynamic proxy for
 * the specified implClass is returned (otherwise a RemoteStub instance
 * for the specified implClass is returned):
 *
 *    a) either the property java.rmi.server.ignoreStubClasses is true or
 *       a pregenerated stub class does not exist for the impl class, and
 *    b) forceStubUse is false.
 *
 * If the above criteria are satisfied, this method constructs a
 * dynamic proxy instance (that implements the remote interfaces of
 * implClass) constructed with a RemoteObjectInvocationHandler instance
 * constructed with the clientRef.
 *
 * Otherwise, this method loads the pregenerated stub class (which
 * extends RemoteStub and implements the remote interfaces of
 * implClass) and constructs an instance of the pregenerated stub
 * class with the clientRef.
 *
 * @param implClass the class to obtain remote interfaces from
 * @param clientRef the remote ref to use in the invocation handler
 * @param forceStubUse if true, forces creation of a RemoteStub
 * @throws IllegalArgumentException if implClass implements illegal
 * remote interfaces
 * @throws StubNotFoundException if problem locating/creating stub or
 * creating the dynamic proxy instance
 **/
public static Remote createProxy(Class<?> implClass,
                                 RemoteRef clientRef,
                                 boolean forceStubUse)
    throws StubNotFoundException
{
    Class<?> remoteClass;

    try {
        remoteClass = getRemoteClass(implClass);
    } catch (ClassNotFoundException ex ) {
        throw new StubNotFoundException(
            "object does not implement a remote interface: " +
            implClass.getName());
    }

    if (forceStubUse ||
        !(ignoreStubClasses || !stubClassExists(remoteClass)))
    {
        return createStub(remoteClass, clientRef);
    }

    final ClassLoader loader = implClass.getClassLoader();
    final Class<?>[] interfaces = getRemoteInterfaces(implClass);
    final InvocationHandler handler =
        new RemoteObjectInvocationHandler(clientRef);

    /* REMIND: private remote interfaces? */

    try {
        return AccessController.doPrivileged(new PrivilegedAction<Remote>() {
            public Remote run() {
                return (Remote) Proxy.newProxyInstance(loader,
                                                       interfaces,
                                                       handler);
            }});
    } catch (IllegalArgumentException e) {
        throw new StubNotFoundException("unable to create proxy", e);
    }
}
 

private static void checkStub(Remote stub,
                              Class<? extends Remote> stubClass) {
    // Check remote stub is from the expected class.
    //
    if (stub.getClass() != stubClass) {
        if (!Proxy.isProxyClass(stub.getClass())) {
            throw new SecurityException(
                "Expecting a " + stubClass.getName() + " stub!");
        } else {
            InvocationHandler handler = Proxy.getInvocationHandler(stub);
            if (handler.getClass() != RemoteObjectInvocationHandler.class) {
                throw new SecurityException(
                    "Expecting a dynamic proxy instance with a " +
                    RemoteObjectInvocationHandler.class.getName() +
                    " invocation handler!");
            } else {
                stub = (Remote) handler;
            }
        }
    }
    // Check RemoteRef in stub is from the expected class
    // "sun.rmi.server.UnicastRef2".
    //
    RemoteRef ref = ((RemoteObject)stub).getRef();
    if (ref.getClass() != UnicastRef2.class) {
        throw new SecurityException(
            "Expecting a " + UnicastRef2.class.getName() +
            " remote reference in stub!");
    }
    // Check RMIClientSocketFactory in stub is from the expected class
    // "javax.rmi.ssl.SslRMIClientSocketFactory".
    //
    LiveRef liveRef = ((UnicastRef2)ref).getLiveRef();
    RMIClientSocketFactory csf = liveRef.getClientSocketFactory();
    if (csf == null || csf.getClass() != SslRMIClientSocketFactory.class) {
        throw new SecurityException(
            "Expecting a " + SslRMIClientSocketFactory.class.getName() +
            " RMI client socket factory in stub!");
    }
}
 

/**
 * Returns a proxy for the specified implClass.
 *
 * If both of the following criteria is satisfied, a dynamic proxy for
 * the specified implClass is returned (otherwise a RemoteStub instance
 * for the specified implClass is returned):
 *
 *    a) either the property java.rmi.server.ignoreStubClasses is true or
 *       a pregenerated stub class does not exist for the impl class, and
 *    b) forceStubUse is false.
 *
 * If the above criteria are satisfied, this method constructs a
 * dynamic proxy instance (that implements the remote interfaces of
 * implClass) constructed with a RemoteObjectInvocationHandler instance
 * constructed with the clientRef.
 *
 * Otherwise, this method loads the pregenerated stub class (which
 * extends RemoteStub and implements the remote interfaces of
 * implClass) and constructs an instance of the pregenerated stub
 * class with the clientRef.
 *
 * @param implClass the class to obtain remote interfaces from
 * @param clientRef the remote ref to use in the invocation handler
 * @param forceStubUse if true, forces creation of a RemoteStub
 * @throws IllegalArgumentException if implClass implements illegal
 * remote interfaces
 * @throws StubNotFoundException if problem locating/creating stub or
 * creating the dynamic proxy instance
 **/
public static Remote createProxy(Class<?> implClass,
                                 RemoteRef clientRef,
                                 boolean forceStubUse)
    throws StubNotFoundException
{
    Class<?> remoteClass;

    try {
        remoteClass = getRemoteClass(implClass);
    } catch (ClassNotFoundException ex ) {
        throw new StubNotFoundException(
            "object does not implement a remote interface: " +
            implClass.getName());
    }

    if (forceStubUse ||
        !(ignoreStubClasses || !stubClassExists(remoteClass)))
    {
        return createStub(remoteClass, clientRef);
    }

    final ClassLoader loader = implClass.getClassLoader();
    final Class<?>[] interfaces = getRemoteInterfaces(implClass);
    final InvocationHandler handler =
        new RemoteObjectInvocationHandler(clientRef);

    /* REMIND: private remote interfaces? */

    try {
        return AccessController.doPrivileged(new PrivilegedAction<Remote>() {
            public Remote run() {
                return (Remote) Proxy.newProxyInstance(loader,
                                                       interfaces,
                                                       handler);
            }});
    } catch (IllegalArgumentException e) {
        throw new StubNotFoundException("unable to create proxy", e);
    }
}
 

/**
 * Returns a proxy for the specified implClass.
 *
 * If both of the following criteria is satisfied, a dynamic proxy for
 * the specified implClass is returned (otherwise a RemoteStub instance
 * for the specified implClass is returned):
 *
 *    a) either the property java.rmi.server.ignoreStubClasses is true or
 *       a pregenerated stub class does not exist for the impl class, and
 *    b) forceStubUse is false.
 *
 * If the above criteria are satisfied, this method constructs a
 * dynamic proxy instance (that implements the remote interfaces of
 * implClass) constructed with a RemoteObjectInvocationHandler instance
 * constructed with the clientRef.
 *
 * Otherwise, this method loads the pregenerated stub class (which
 * extends RemoteStub and implements the remote interfaces of
 * implClass) and constructs an instance of the pregenerated stub
 * class with the clientRef.
 *
 * @param implClass the class to obtain remote interfaces from
 * @param clientRef the remote ref to use in the invocation handler
 * @param forceStubUse if true, forces creation of a RemoteStub
 * @throws IllegalArgumentException if implClass implements illegal
 * remote interfaces
 * @throws StubNotFoundException if problem locating/creating stub or
 * creating the dynamic proxy instance
 **/
public static Remote createProxy(Class<?> implClass,
                                 RemoteRef clientRef,
                                 boolean forceStubUse)
    throws StubNotFoundException
{
    Class<?> remoteClass;

    try {
        remoteClass = getRemoteClass(implClass);
    } catch (ClassNotFoundException ex ) {
        throw new StubNotFoundException(
            "object does not implement a remote interface: " +
            implClass.getName());
    }

    if (forceStubUse ||
        !(ignoreStubClasses || !stubClassExists(remoteClass)))
    {
        return createStub(remoteClass, clientRef);
    }

    final ClassLoader loader = implClass.getClassLoader();
    final Class<?>[] interfaces = getRemoteInterfaces(implClass);
    final InvocationHandler handler =
        new RemoteObjectInvocationHandler(clientRef);

    /* REMIND: private remote interfaces? */

    try {
        return AccessController.doPrivileged(new PrivilegedAction<Remote>() {
            public Remote run() {
                return (Remote) Proxy.newProxyInstance(loader,
                                                       interfaces,
                                                       handler);
            }});
    } catch (IllegalArgumentException e) {
        throw new StubNotFoundException("unable to create proxy", e);
    }
}
 

/**
 * Returns a proxy for the specified implClass.
 *
 * If both of the following criteria is satisfied, a dynamic proxy for
 * the specified implClass is returned (otherwise a RemoteStub instance
 * for the specified implClass is returned):
 *
 *    a) either the property java.rmi.server.ignoreStubClasses is true or
 *       a pregenerated stub class does not exist for the impl class, and
 *    b) forceStubUse is false.
 *
 * If the above criteria are satisfied, this method constructs a
 * dynamic proxy instance (that implements the remote interfaces of
 * implClass) constructed with a RemoteObjectInvocationHandler instance
 * constructed with the clientRef.
 *
 * Otherwise, this method loads the pregenerated stub class (which
 * extends RemoteStub and implements the remote interfaces of
 * implClass) and constructs an instance of the pregenerated stub
 * class with the clientRef.
 *
 * @param implClass the class to obtain remote interfaces from
 * @param clientRef the remote ref to use in the invocation handler
 * @param forceStubUse if true, forces creation of a RemoteStub
 * @throws IllegalArgumentException if implClass implements illegal
 * remote interfaces
 * @throws StubNotFoundException if problem locating/creating stub or
 * creating the dynamic proxy instance
 **/
public static Remote createProxy(Class<?> implClass,
                                 RemoteRef clientRef,
                                 boolean forceStubUse)
    throws StubNotFoundException
{
    Class<?> remoteClass;

    try {
        remoteClass = getRemoteClass(implClass);
    } catch (ClassNotFoundException ex ) {
        throw new StubNotFoundException(
            "object does not implement a remote interface: " +
            implClass.getName());
    }

    if (forceStubUse ||
        !(ignoreStubClasses || !stubClassExists(remoteClass)))
    {
        return createStub(remoteClass, clientRef);
    }

    final ClassLoader loader = implClass.getClassLoader();
    final Class<?>[] interfaces = getRemoteInterfaces(implClass);
    final InvocationHandler handler =
        new RemoteObjectInvocationHandler(clientRef);

    /* REMIND: private remote interfaces? */

    try {
        return AccessController.doPrivileged(new PrivilegedAction<Remote>() {
            public Remote run() {
                return (Remote) Proxy.newProxyInstance(loader,
                                                       interfaces,
                                                       handler);
            }});
    } catch (IllegalArgumentException e) {
        throw new StubNotFoundException("unable to create proxy", e);
    }
}
 

private static void checkStub(Remote stub,
        Class<?> stubClass) {

    // Check remote stub is from the expected class.
    //
    if (stub.getClass() != stubClass) {
        if (!Proxy.isProxyClass(stub.getClass())) {
            throw new SecurityException(
                    "Expecting a " + stubClass.getName() + " stub!");
        } else {
            InvocationHandler handler = Proxy.getInvocationHandler(stub);
            if (handler.getClass() != RemoteObjectInvocationHandler.class)
                throw new SecurityException(
                        "Expecting a dynamic proxy instance with a " +
                        RemoteObjectInvocationHandler.class.getName() +
                        " invocation handler!");
            else
                stub = (Remote) handler;
        }
    }

    // Check RemoteRef in stub is from the expected class
    // "sun.rmi.server.UnicastRef2".
    //
    RemoteRef ref = ((RemoteObject)stub).getRef();
    if (ref.getClass() != UnicastRef2.class)
        throw new SecurityException(
                "Expecting a " + UnicastRef2.class.getName() +
                " remote reference in stub!");

    // Check RMIClientSocketFactory in stub is from the expected class
    // "javax.rmi.ssl.SslRMIClientSocketFactory".
    //
    LiveRef liveRef = ((UnicastRef2)ref).getLiveRef();
    RMIClientSocketFactory csf = liveRef.getClientSocketFactory();
    if (csf == null || csf.getClass() != SslRMIClientSocketFactory.class)
        throw new SecurityException(
                "Expecting a " + SslRMIClientSocketFactory.class.getName() +
                " RMI client socket factory in stub!");
}
 

/**
 * Returns a proxy for the specified implClass.
 *
 * If both of the following criteria is satisfied, a dynamic proxy for
 * the specified implClass is returned (otherwise a RemoteStub instance
 * for the specified implClass is returned):
 *
 *    a) either the property java.rmi.server.ignoreStubClasses is true or
 *       a pregenerated stub class does not exist for the impl class, and
 *    b) forceStubUse is false.
 *
 * If the above criteria are satisfied, this method constructs a
 * dynamic proxy instance (that implements the remote interfaces of
 * implClass) constructed with a RemoteObjectInvocationHandler instance
 * constructed with the clientRef.
 *
 * Otherwise, this method loads the pregenerated stub class (which
 * extends RemoteStub and implements the remote interfaces of
 * implClass) and constructs an instance of the pregenerated stub
 * class with the clientRef.
 *
 * @param implClass the class to obtain remote interfaces from
 * @param clientRef the remote ref to use in the invocation handler
 * @param forceStubUse if true, forces creation of a RemoteStub
 * @throws IllegalArgumentException if implClass implements illegal
 * remote interfaces
 * @throws StubNotFoundException if problem locating/creating stub or
 * creating the dynamic proxy instance
 **/
public static Remote createProxy(Class<?> implClass,
                                 RemoteRef clientRef,
                                 boolean forceStubUse)
    throws StubNotFoundException
{
    Class<?> remoteClass;

    try {
        remoteClass = getRemoteClass(implClass);
    } catch (ClassNotFoundException ex ) {
        throw new StubNotFoundException(
            "object does not implement a remote interface: " +
            implClass.getName());
    }

    if (forceStubUse ||
        !(ignoreStubClasses || !stubClassExists(remoteClass)))
    {
        return createStub(remoteClass, clientRef);
    }

    final ClassLoader loader = implClass.getClassLoader();
    final Class<?>[] interfaces = getRemoteInterfaces(implClass);
    final InvocationHandler handler =
        new RemoteObjectInvocationHandler(clientRef);

    /* REMIND: private remote interfaces? */

    try {
        return AccessController.doPrivileged(new PrivilegedAction<Remote>() {
            public Remote run() {
                return (Remote) Proxy.newProxyInstance(loader,
                                                       interfaces,
                                                       handler);
            }});
    } catch (IllegalArgumentException e) {
        throw new StubNotFoundException("unable to create proxy", e);
    }
}
 

/**
 * Returns a proxy for the specified implClass.
 *
 * If both of the following criteria is satisfied, a dynamic proxy for
 * the specified implClass is returned (otherwise a RemoteStub instance
 * for the specified implClass is returned):
 *
 *    a) either the property java.rmi.server.ignoreStubClasses is true or
 *       a pregenerated stub class does not exist for the impl class, and
 *    b) forceStubUse is false.
 *
 * If the above criteria are satisfied, this method constructs a
 * dynamic proxy instance (that implements the remote interfaces of
 * implClass) constructed with a RemoteObjectInvocationHandler instance
 * constructed with the clientRef.
 *
 * Otherwise, this method loads the pregenerated stub class (which
 * extends RemoteStub and implements the remote interfaces of
 * implClass) and constructs an instance of the pregenerated stub
 * class with the clientRef.
 *
 * @param implClass the class to obtain remote interfaces from
 * @param clientRef the remote ref to use in the invocation handler
 * @param forceStubUse if true, forces creation of a RemoteStub
 * @throws IllegalArgumentException if implClass implements illegal
 * remote interfaces
 * @throws StubNotFoundException if problem locating/creating stub or
 * creating the dynamic proxy instance
 **/
public static Remote createProxy(Class<?> implClass,
                                 RemoteRef clientRef,
                                 boolean forceStubUse)
    throws StubNotFoundException
{
    Class<?> remoteClass;

    try {
        remoteClass = getRemoteClass(implClass);
    } catch (ClassNotFoundException ex ) {
        throw new StubNotFoundException(
            "object does not implement a remote interface: " +
            implClass.getName());
    }

    if (forceStubUse ||
        !(ignoreStubClasses || !stubClassExists(remoteClass)))
    {
        return createStub(remoteClass, clientRef);
    }

    final ClassLoader loader = implClass.getClassLoader();
    final Class<?>[] interfaces = getRemoteInterfaces(implClass);
    final InvocationHandler handler =
        new RemoteObjectInvocationHandler(clientRef);

    /* REMIND: private remote interfaces? */

    try {
        return AccessController.doPrivileged(new PrivilegedAction<Remote>() {
            public Remote run() {
                return (Remote) Proxy.newProxyInstance(loader,
                                                       interfaces,
                                                       handler);
            }});
    } catch (IllegalArgumentException e) {
        throw new StubNotFoundException("unable to create proxy", e);
    }
}
 

/**
 * Returns a proxy for the specified implClass.
 *
 * If both of the following criteria is satisfied, a dynamic proxy for
 * the specified implClass is returned (otherwise a RemoteStub instance
 * for the specified implClass is returned):
 *
 *    a) either the property java.rmi.server.ignoreStubClasses is true or
 *       a pregenerated stub class does not exist for the impl class, and
 *    b) forceStubUse is false.
 *
 * If the above criteria are satisfied, this method constructs a
 * dynamic proxy instance (that implements the remote interfaces of
 * implClass) constructed with a RemoteObjectInvocationHandler instance
 * constructed with the clientRef.
 *
 * Otherwise, this method loads the pregenerated stub class (which
 * extends RemoteStub and implements the remote interfaces of
 * implClass) and constructs an instance of the pregenerated stub
 * class with the clientRef.
 *
 * @param implClass the class to obtain remote interfaces from
 * @param clientRef the remote ref to use in the invocation handler
 * @param forceStubUse if true, forces creation of a RemoteStub
 * @throws IllegalArgumentException if implClass implements illegal
 * remote interfaces
 * @throws StubNotFoundException if problem locating/creating stub or
 * creating the dynamic proxy instance
 **/
public static Remote createProxy(Class<?> implClass,
                                 RemoteRef clientRef,
                                 boolean forceStubUse)
    throws StubNotFoundException
{
    Class<?> remoteClass;

    try {
        remoteClass = getRemoteClass(implClass);
    } catch (ClassNotFoundException ex ) {
        throw new StubNotFoundException(
            "object does not implement a remote interface: " +
            implClass.getName());
    }

    if (forceStubUse ||
        !(ignoreStubClasses || !stubClassExists(remoteClass)))
    {
        return createStub(remoteClass, clientRef);
    }

    final ClassLoader loader = implClass.getClassLoader();
    final Class<?>[] interfaces = getRemoteInterfaces(implClass);
    final InvocationHandler handler =
        new RemoteObjectInvocationHandler(clientRef);

    /* REMIND: private remote interfaces? */

    try {
        return AccessController.doPrivileged(new PrivilegedAction<Remote>() {
            public Remote run() {
                return (Remote) Proxy.newProxyInstance(loader,
                                                       interfaces,
                                                       handler);
            }});
    } catch (IllegalArgumentException e) {
        throw new StubNotFoundException("unable to create proxy", e);
    }
}
 

/**
 * Returns a proxy for the specified implClass.
 *
 * If both of the following criteria is satisfied, a dynamic proxy for
 * the specified implClass is returned (otherwise a RemoteStub instance
 * for the specified implClass is returned):
 *
 *    a) either the property java.rmi.server.ignoreStubClasses is true or
 *       a pregenerated stub class does not exist for the impl class, and
 *    b) forceStubUse is false.
 *
 * If the above criteria are satisfied, this method constructs a
 * dynamic proxy instance (that implements the remote interfaces of
 * implClass) constructed with a RemoteObjectInvocationHandler instance
 * constructed with the clientRef.
 *
 * Otherwise, this method loads the pregenerated stub class (which
 * extends RemoteStub and implements the remote interfaces of
 * implClass) and constructs an instance of the pregenerated stub
 * class with the clientRef.
 *
 * @param implClass the class to obtain remote interfaces from
 * @param clientRef the remote ref to use in the invocation handler
 * @param forceStubUse if true, forces creation of a RemoteStub
 * @throws IllegalArgumentException if implClass implements illegal
 * remote interfaces
 * @throws StubNotFoundException if problem locating/creating stub or
 * creating the dynamic proxy instance
 **/
public static Remote createProxy(Class<?> implClass,
                                 RemoteRef clientRef,
                                 boolean forceStubUse)
    throws StubNotFoundException
{
    Class<?> remoteClass;

    try {
        remoteClass = getRemoteClass(implClass);
    } catch (ClassNotFoundException ex ) {
        throw new StubNotFoundException(
            "object does not implement a remote interface: " +
            implClass.getName());
    }

    if (forceStubUse ||
        !(ignoreStubClasses || !stubClassExists(remoteClass)))
    {
        return createStub(remoteClass, clientRef);
    }

    final ClassLoader loader = implClass.getClassLoader();
    final Class<?>[] interfaces = getRemoteInterfaces(implClass);
    final InvocationHandler handler =
        new RemoteObjectInvocationHandler(clientRef);

    /* REMIND: private remote interfaces? */

    try {
        return AccessController.doPrivileged(new PrivilegedAction<Remote>() {
            public Remote run() {
                return (Remote) Proxy.newProxyInstance(loader,
                                                       interfaces,
                                                       handler);
            }});
    } catch (IllegalArgumentException e) {
        throw new StubNotFoundException("unable to create proxy", e);
    }
}
 

private static void checkStub(Remote stub,
        Class<?> stubClass) {

    // Check remote stub is from the expected class.
    //
    if (stub.getClass() != stubClass) {
        if (!Proxy.isProxyClass(stub.getClass())) {
            throw new SecurityException(
                    "Expecting a " + stubClass.getName() + " stub!");
        } else {
            InvocationHandler handler = Proxy.getInvocationHandler(stub);
            if (handler.getClass() != RemoteObjectInvocationHandler.class)
                throw new SecurityException(
                        "Expecting a dynamic proxy instance with a " +
                        RemoteObjectInvocationHandler.class.getName() +
                        " invocation handler!");
            else
                stub = (Remote) handler;
        }
    }

    // Check RemoteRef in stub is from the expected class
    // "sun.rmi.server.UnicastRef2".
    //
    RemoteRef ref = ((RemoteObject)stub).getRef();
    if (ref.getClass() != UnicastRef2.class)
        throw new SecurityException(
                "Expecting a " + UnicastRef2.class.getName() +
                " remote reference in stub!");

    // Check RMIClientSocketFactory in stub is from the expected class
    // "javax.rmi.ssl.SslRMIClientSocketFactory".
    //
    LiveRef liveRef = ((UnicastRef2)ref).getLiveRef();
    RMIClientSocketFactory csf = liveRef.getClientSocketFactory();
    if (csf == null || csf.getClass() != SslRMIClientSocketFactory.class)
        throw new SecurityException(
                "Expecting a " + SslRMIClientSocketFactory.class.getName() +
                " RMI client socket factory in stub!");
}
 

/**
 * <code>writeObject</code> for custom serialization.
 *
 * <p>This method writes this object's serialized form for
 * this class as follows:
 *
 * <p>The <code>writeObject</code> method is invoked on
 * <code>out</code> passing this object's unique identifier
 * (a {@link java.rmi.server.UID UID} instance) as the argument.
 *
 * <p>Next, the {@link
 * java.rmi.server.RemoteRef#getRefClass(java.io.ObjectOutput)
 * getRefClass} method is invoked on the activator's
 * <code>RemoteRef</code> instance to obtain its external ref
 * type name.  Next, the <code>writeUTF</code> method is
 * invoked on <code>out</code> with the value returned by
 * <code>getRefClass</code>, and then the
 * <code>writeExternal</code> method is invoked on the
 * <code>RemoteRef</code> instance passing <code>out</code>
 * as the argument.
 *
 * @serialData The serialized data for this class comprises a
 * <code>java.rmi.server.UID</code> (written with
 * <code>ObjectOutput.writeObject</code>) followed by the
 * external ref type name of the activator's
 * <code>RemoteRef</code> instance (a string written with
 * <code>ObjectOutput.writeUTF</code>), followed by the
 * external form of the <code>RemoteRef</code> instance as
 * written by its <code>writeExternal</code> method.
 *
 * <p>The external ref type name of the
 * <code>RemoteRef</Code> instance is
 * determined using the definitions of external ref type
 * names specified in the {@link java.rmi.server.RemoteObject
 * RemoteObject} <code>writeObject</code> method
 * <b>serialData</b> specification.  Similarly, the data
 * written by the <code>writeExternal</code> method and read
 * by the <code>readExternal</code> method of
 * <code>RemoteRef</code> implementation classes
 * corresponding to each of the defined external ref type
 * names is specified in the {@link
 * java.rmi.server.RemoteObject RemoteObject}
 * <code>writeObject</code> method <b>serialData</b>
 * specification.
 **/
private void writeObject(ObjectOutputStream out)
    throws IOException, ClassNotFoundException
{
    out.writeObject(uid);

    RemoteRef ref;
    if (activator instanceof RemoteObject) {
        ref = ((RemoteObject) activator).getRef();
    } else if (Proxy.isProxyClass(activator.getClass())) {
        InvocationHandler handler = Proxy.getInvocationHandler(activator);
        if (!(handler instanceof RemoteObjectInvocationHandler)) {
            throw new InvalidObjectException(
                "unexpected invocation handler");
        }
        ref = ((RemoteObjectInvocationHandler) handler).getRef();

    } else {
        throw new InvalidObjectException("unexpected activator type");
    }
    out.writeUTF(ref.getRefClass(out));
    ref.writeExternal(out);
}
 

public static void main(String[] args) throws Exception {

        RemoteInterface server = null;
        RemoteInterface proxy = null;

        try {
            System.setProperty("java.rmi.server.ignoreStubClasses", args[0]);
            boolean ignoreStubClasses = Boolean.parseBoolean(args[0]);

            if (System.getSecurityManager() == null) {
                System.setSecurityManager(new SecurityManager());
            }

            System.err.println("export object");
            server = new UseDynamicProxies();
            proxy =
                (RemoteInterface) UnicastRemoteObject.exportObject(server, 0);

            System.err.println("proxy = " + proxy);
            if (ignoreStubClasses) {
                if (!Proxy.isProxyClass(proxy.getClass())) {
                    throw new RuntimeException(
                        "server proxy is not a dynamic proxy");
                }
                if (!(Proxy.getInvocationHandler(proxy) instanceof
                      RemoteObjectInvocationHandler))
                {
                    throw new RuntimeException("invalid invocation handler");
                }

            } else if (!(proxy instanceof RemoteStub)) {
                throw new RuntimeException(
                    "server proxy is not a RemoteStub");
            }

            System.err.println("invoke methods");
            Object obj = proxy.passObject(proxy);
            if (!proxy.equals(obj)) {
                throw new RuntimeException("returned proxy not equal");
            }

            int x = proxy.passInt(53);
            if (x != 53) {
                throw new RuntimeException("returned int not equal");
            }

            String string = proxy.passString("test");
            if (!string.equals("test")) {
                throw new RuntimeException("returned string not equal");
            }

            System.err.println("TEST PASSED");

        } finally {
            if (proxy != null) {
                UnicastRemoteObject.unexportObject(server, true);
            }
        }
    }
 

/**
 * <code>writeObject</code> for custom serialization.
 *
 * <p>This method writes this object's serialized form for
 * this class as follows:
 *
 * <p>The <code>writeObject</code> method is invoked on
 * <code>out</code> passing this object's unique identifier
 * (a {@link java.rmi.server.UID UID} instance) as the argument.
 *
 * <p>Next, the {@link
 * java.rmi.server.RemoteRef#getRefClass(java.io.ObjectOutput)
 * getRefClass} method is invoked on the activator's
 * <code>RemoteRef</code> instance to obtain its external ref
 * type name.  Next, the <code>writeUTF</code> method is
 * invoked on <code>out</code> with the value returned by
 * <code>getRefClass</code>, and then the
 * <code>writeExternal</code> method is invoked on the
 * <code>RemoteRef</code> instance passing <code>out</code>
 * as the argument.
 *
 * @serialData The serialized data for this class comprises a
 * <code>java.rmi.server.UID</code> (written with
 * <code>ObjectOutput.writeObject</code>) followed by the
 * external ref type name of the activator's
 * <code>RemoteRef</code> instance (a string written with
 * <code>ObjectOutput.writeUTF</code>), followed by the
 * external form of the <code>RemoteRef</code> instance as
 * written by its <code>writeExternal</code> method.
 *
 * <p>The external ref type name of the
 * <code>RemoteRef</Code> instance is
 * determined using the definitions of external ref type
 * names specified in the {@link java.rmi.server.RemoteObject
 * RemoteObject} <code>writeObject</code> method
 * <b>serialData</b> specification.  Similarly, the data
 * written by the <code>writeExternal</code> method and read
 * by the <code>readExternal</code> method of
 * <code>RemoteRef</code> implementation classes
 * corresponding to each of the defined external ref type
 * names is specified in the {@link
 * java.rmi.server.RemoteObject RemoteObject}
 * <code>writeObject</code> method <b>serialData</b>
 * specification.
 **/
private void writeObject(ObjectOutputStream out)
    throws IOException, ClassNotFoundException
{
    out.writeObject(uid);

    RemoteRef ref;
    if (activator instanceof RemoteObject) {
        ref = ((RemoteObject) activator).getRef();
    } else if (Proxy.isProxyClass(activator.getClass())) {
        InvocationHandler handler = Proxy.getInvocationHandler(activator);
        if (!(handler instanceof RemoteObjectInvocationHandler)) {
            throw new InvalidObjectException(
                "unexpected invocation handler");
        }
        ref = ((RemoteObjectInvocationHandler) handler).getRef();

    } else {
        throw new InvalidObjectException("unexpected activator type");
    }
    out.writeUTF(ref.getRefClass(out));
    ref.writeExternal(out);
}
 

public static void main(String[] args) throws Exception {

        RemoteInterface server = null;
        RemoteInterface proxy = null;

        try {
            System.setProperty("java.rmi.server.ignoreStubClasses", args[0]);
            boolean ignoreStubClasses = Boolean.parseBoolean(args[0]);

            if (System.getSecurityManager() == null) {
                System.setSecurityManager(new SecurityManager());
            }

            System.err.println("export object");
            server = new UseDynamicProxies();
            proxy =
                (RemoteInterface) UnicastRemoteObject.exportObject(server, 0);

            System.err.println("proxy = " + proxy);
            if (ignoreStubClasses) {
                if (!Proxy.isProxyClass(proxy.getClass())) {
                    throw new RuntimeException(
                        "server proxy is not a dynamic proxy");
                }
                if (!(Proxy.getInvocationHandler(proxy) instanceof
                      RemoteObjectInvocationHandler))
                {
                    throw new RuntimeException("invalid invocation handler");
                }

            } else if (!(proxy instanceof RemoteStub)) {
                throw new RuntimeException(
                    "server proxy is not a RemoteStub");
            }

            System.err.println("invoke methods");
            Object obj = proxy.passObject(proxy);
            if (!proxy.equals(obj)) {
                throw new RuntimeException("returned proxy not equal");
            }

            int x = proxy.passInt(53);
            if (x != 53) {
                throw new RuntimeException("returned int not equal");
            }

            String string = proxy.passString("test");
            if (!string.equals("test")) {
                throw new RuntimeException("returned string not equal");
            }

            System.err.println("TEST PASSED");

        } finally {
            if (proxy != null) {
                UnicastRemoteObject.unexportObject(server, true);
            }
        }
    }
 

public static void main(String[] args) throws Exception {

        RemoteInterface server = null;
        RemoteInterface proxy = null;

        try {
            System.setProperty("java.rmi.server.ignoreStubClasses", args[0]);
            boolean ignoreStubClasses = Boolean.parseBoolean(args[0]);

            if (System.getSecurityManager() == null) {
                System.setSecurityManager(new SecurityManager());
            }

            System.err.println("export object");
            server = new UseDynamicProxies();
            proxy =
                (RemoteInterface) UnicastRemoteObject.exportObject(server, 0);

            System.err.println("proxy = " + proxy);
            if (ignoreStubClasses) {
                if (!Proxy.isProxyClass(proxy.getClass())) {
                    throw new RuntimeException(
                        "server proxy is not a dynamic proxy");
                }
                if (!(Proxy.getInvocationHandler(proxy) instanceof
                      RemoteObjectInvocationHandler))
                {
                    throw new RuntimeException("invalid invocation handler");
                }

            } else if (!(proxy instanceof RemoteStub)) {
                throw new RuntimeException(
                    "server proxy is not a RemoteStub");
            }

            System.err.println("invoke methods");
            Object obj = proxy.passObject(proxy);
            if (!proxy.equals(obj)) {
                throw new RuntimeException("returned proxy not equal");
            }

            int x = proxy.passInt(53);
            if (x != 53) {
                throw new RuntimeException("returned int not equal");
            }

            String string = proxy.passString("test");
            if (!string.equals("test")) {
                throw new RuntimeException("returned string not equal");
            }

            System.err.println("TEST PASSED");

        } finally {
            if (proxy != null) {
                UnicastRemoteObject.unexportObject(server, true);
            }
        }
    }
 

/**
 * <code>writeObject</code> for custom serialization.
 *
 * <p>This method writes this object's serialized form for
 * this class as follows:
 *
 * <p>The <code>writeObject</code> method is invoked on
 * <code>out</code> passing this object's unique identifier
 * (a {@link java.rmi.server.UID UID} instance) as the argument.
 *
 * <p>Next, the {@link
 * java.rmi.server.RemoteRef#getRefClass(java.io.ObjectOutput)
 * getRefClass} method is invoked on the activator's
 * <code>RemoteRef</code> instance to obtain its external ref
 * type name.  Next, the <code>writeUTF</code> method is
 * invoked on <code>out</code> with the value returned by
 * <code>getRefClass</code>, and then the
 * <code>writeExternal</code> method is invoked on the
 * <code>RemoteRef</code> instance passing <code>out</code>
 * as the argument.
 *
 * @serialData The serialized data for this class comprises a
 * <code>java.rmi.server.UID</code> (written with
 * <code>ObjectOutput.writeObject</code>) followed by the
 * external ref type name of the activator's
 * <code>RemoteRef</code> instance (a string written with
 * <code>ObjectOutput.writeUTF</code>), followed by the
 * external form of the <code>RemoteRef</code> instance as
 * written by its <code>writeExternal</code> method.
 *
 * <p>The external ref type name of the
 * <code>RemoteRef</Code> instance is
 * determined using the definitions of external ref type
 * names specified in the {@link java.rmi.server.RemoteObject
 * RemoteObject} <code>writeObject</code> method
 * <b>serialData</b> specification.  Similarly, the data
 * written by the <code>writeExternal</code> method and read
 * by the <code>readExternal</code> method of
 * <code>RemoteRef</code> implementation classes
 * corresponding to each of the defined external ref type
 * names is specified in the {@link
 * java.rmi.server.RemoteObject RemoteObject}
 * <code>writeObject</code> method <b>serialData</b>
 * specification.
 **/
private void writeObject(ObjectOutputStream out)
    throws IOException, ClassNotFoundException
{
    out.writeObject(uid);

    RemoteRef ref;
    if (activator instanceof RemoteObject) {
        ref = ((RemoteObject) activator).getRef();
    } else if (Proxy.isProxyClass(activator.getClass())) {
        InvocationHandler handler = Proxy.getInvocationHandler(activator);
        if (!(handler instanceof RemoteObjectInvocationHandler)) {
            throw new InvalidObjectException(
                "unexpected invocation handler");
        }
        ref = ((RemoteObjectInvocationHandler) handler).getRef();

    } else {
        throw new InvalidObjectException("unexpected activator type");
    }
    out.writeUTF(ref.getRefClass(out));
    ref.writeExternal(out);
}
 

/**
 * <code>writeObject</code> for custom serialization.
 *
 * <p>This method writes this object's serialized form for
 * this class as follows:
 *
 * <p>The <code>writeObject</code> method is invoked on
 * <code>out</code> passing this object's unique identifier
 * (a {@link java.rmi.server.UID UID} instance) as the argument.
 *
 * <p>Next, the {@link
 * java.rmi.server.RemoteRef#getRefClass(java.io.ObjectOutput)
 * getRefClass} method is invoked on the activator's
 * <code>RemoteRef</code> instance to obtain its external ref
 * type name.  Next, the <code>writeUTF</code> method is
 * invoked on <code>out</code> with the value returned by
 * <code>getRefClass</code>, and then the
 * <code>writeExternal</code> method is invoked on the
 * <code>RemoteRef</code> instance passing <code>out</code>
 * as the argument.
 *
 * @serialData The serialized data for this class comprises a
 * <code>java.rmi.server.UID</code> (written with
 * <code>ObjectOutput.writeObject</code>) followed by the
 * external ref type name of the activator's
 * <code>RemoteRef</code> instance (a string written with
 * <code>ObjectOutput.writeUTF</code>), followed by the
 * external form of the <code>RemoteRef</code> instance as
 * written by its <code>writeExternal</code> method.
 *
 * <p>The external ref type name of the
 * <code>RemoteRef</Code> instance is
 * determined using the definitions of external ref type
 * names specified in the {@link java.rmi.server.RemoteObject
 * RemoteObject} <code>writeObject</code> method
 * <b>serialData</b> specification.  Similarly, the data
 * written by the <code>writeExternal</code> method and read
 * by the <code>readExternal</code> method of
 * <code>RemoteRef</code> implementation classes
 * corresponding to each of the defined external ref type
 * names is specified in the {@link
 * java.rmi.server.RemoteObject RemoteObject}
 * <code>writeObject</code> method <b>serialData</b>
 * specification.
 **/
private void writeObject(ObjectOutputStream out)
    throws IOException, ClassNotFoundException
{
    out.writeObject(uid);

    RemoteRef ref;
    if (activator instanceof RemoteObject) {
        ref = ((RemoteObject) activator).getRef();
    } else if (Proxy.isProxyClass(activator.getClass())) {
        InvocationHandler handler = Proxy.getInvocationHandler(activator);
        if (!(handler instanceof RemoteObjectInvocationHandler)) {
            throw new InvalidObjectException(
                "unexpected invocation handler");
        }
        ref = ((RemoteObjectInvocationHandler) handler).getRef();

    } else {
        throw new InvalidObjectException("unexpected activator type");
    }
    out.writeUTF(ref.getRefClass(out));
    ref.writeExternal(out);
}
 

public static void main(String[] args) throws Exception {

        RemoteInterface server = null;
        RemoteInterface proxy = null;

        try {
            System.setProperty("java.rmi.server.ignoreStubClasses", args[0]);
            boolean ignoreStubClasses = Boolean.parseBoolean(args[0]);

            if (System.getSecurityManager() == null) {
                System.setSecurityManager(new SecurityManager());
            }

            System.err.println("export object");
            server = new UseDynamicProxies();
            proxy =
                (RemoteInterface) UnicastRemoteObject.exportObject(server, 0);

            System.err.println("proxy = " + proxy);
            if (ignoreStubClasses) {
                if (!Proxy.isProxyClass(proxy.getClass())) {
                    throw new RuntimeException(
                        "server proxy is not a dynamic proxy");
                }
                if (!(Proxy.getInvocationHandler(proxy) instanceof
                      RemoteObjectInvocationHandler))
                {
                    throw new RuntimeException("invalid invocation handler");
                }

            } else if (!(proxy instanceof RemoteStub)) {
                throw new RuntimeException(
                    "server proxy is not a RemoteStub");
            }

            System.err.println("invoke methods");
            Object obj = proxy.passObject(proxy);
            if (!proxy.equals(obj)) {
                throw new RuntimeException("returned proxy not equal");
            }

            int x = proxy.passInt(53);
            if (x != 53) {
                throw new RuntimeException("returned int not equal");
            }

            String string = proxy.passString("test");
            if (!string.equals("test")) {
                throw new RuntimeException("returned string not equal");
            }

            System.err.println("TEST PASSED");

        } finally {
            if (proxy != null) {
                UnicastRemoteObject.unexportObject(server, true);
            }
        }
    }
 

/**
 * <code>writeObject</code> for custom serialization.
 *
 * <p>This method writes this object's serialized form for
 * this class as follows:
 *
 * <p>The <code>writeObject</code> method is invoked on
 * <code>out</code> passing this object's unique identifier
 * (a {@link java.rmi.server.UID UID} instance) as the argument.
 *
 * <p>Next, the {@link
 * java.rmi.server.RemoteRef#getRefClass(java.io.ObjectOutput)
 * getRefClass} method is invoked on the activator's
 * <code>RemoteRef</code> instance to obtain its external ref
 * type name.  Next, the <code>writeUTF</code> method is
 * invoked on <code>out</code> with the value returned by
 * <code>getRefClass</code>, and then the
 * <code>writeExternal</code> method is invoked on the
 * <code>RemoteRef</code> instance passing <code>out</code>
 * as the argument.
 *
 * @serialData The serialized data for this class comprises a
 * <code>java.rmi.server.UID</code> (written with
 * <code>ObjectOutput.writeObject</code>) followed by the
 * external ref type name of the activator's
 * <code>RemoteRef</code> instance (a string written with
 * <code>ObjectOutput.writeUTF</code>), followed by the
 * external form of the <code>RemoteRef</code> instance as
 * written by its <code>writeExternal</code> method.
 *
 * <p>The external ref type name of the
 * <code>RemoteRef</Code> instance is
 * determined using the definitions of external ref type
 * names specified in the {@link java.rmi.server.RemoteObject
 * RemoteObject} <code>writeObject</code> method
 * <b>serialData</b> specification.  Similarly, the data
 * written by the <code>writeExternal</code> method and read
 * by the <code>readExternal</code> method of
 * <code>RemoteRef</code> implementation classes
 * corresponding to each of the defined external ref type
 * names is specified in the {@link
 * java.rmi.server.RemoteObject RemoteObject}
 * <code>writeObject</code> method <b>serialData</b>
 * specification.
 **/
private void writeObject(ObjectOutputStream out)
    throws IOException, ClassNotFoundException
{
    out.writeObject(uid);

    RemoteRef ref;
    if (activator instanceof RemoteObject) {
        ref = ((RemoteObject) activator).getRef();
    } else if (Proxy.isProxyClass(activator.getClass())) {
        InvocationHandler handler = Proxy.getInvocationHandler(activator);
        if (!(handler instanceof RemoteObjectInvocationHandler)) {
            throw new InvalidObjectException(
                "unexpected invocation handler");
        }
        ref = ((RemoteObjectInvocationHandler) handler).getRef();

    } else {
        throw new InvalidObjectException("unexpected activator type");
    }
    out.writeUTF(ref.getRefClass(out));
    ref.writeExternal(out);
}
 

/**
 * <code>writeObject</code> for custom serialization.
 *
 * <p>This method writes this object's serialized form for
 * this class as follows:
 *
 * <p>The <code>writeObject</code> method is invoked on
 * <code>out</code> passing this object's unique identifier
 * (a {@link java.rmi.server.UID UID} instance) as the argument.
 *
 * <p>Next, the {@link
 * java.rmi.server.RemoteRef#getRefClass(java.io.ObjectOutput)
 * getRefClass} method is invoked on the activator's
 * <code>RemoteRef</code> instance to obtain its external ref
 * type name.  Next, the <code>writeUTF</code> method is
 * invoked on <code>out</code> with the value returned by
 * <code>getRefClass</code>, and then the
 * <code>writeExternal</code> method is invoked on the
 * <code>RemoteRef</code> instance passing <code>out</code>
 * as the argument.
 *
 * @serialData The serialized data for this class comprises a
 * <code>java.rmi.server.UID</code> (written with
 * <code>ObjectOutput.writeObject</code>) followed by the
 * external ref type name of the activator's
 * <code>RemoteRef</code> instance (a string written with
 * <code>ObjectOutput.writeUTF</code>), followed by the
 * external form of the <code>RemoteRef</code> instance as
 * written by its <code>writeExternal</code> method.
 *
 * <p>The external ref type name of the
 * <code>RemoteRef</Code> instance is
 * determined using the definitions of external ref type
 * names specified in the {@link java.rmi.server.RemoteObject
 * RemoteObject} <code>writeObject</code> method
 * <b>serialData</b> specification.  Similarly, the data
 * written by the <code>writeExternal</code> method and read
 * by the <code>readExternal</code> method of
 * <code>RemoteRef</code> implementation classes
 * corresponding to each of the defined external ref type
 * names is specified in the {@link
 * java.rmi.server.RemoteObject RemoteObject}
 * <code>writeObject</code> method <b>serialData</b>
 * specification.
 **/
private void writeObject(ObjectOutputStream out)
    throws IOException, ClassNotFoundException
{
    out.writeObject(uid);

    RemoteRef ref;
    if (activator instanceof RemoteObject) {
        ref = ((RemoteObject) activator).getRef();
    } else if (Proxy.isProxyClass(activator.getClass())) {
        InvocationHandler handler = Proxy.getInvocationHandler(activator);
        if (!(handler instanceof RemoteObjectInvocationHandler)) {
            throw new InvalidObjectException(
                "unexpected invocation handler");
        }
        ref = ((RemoteObjectInvocationHandler) handler).getRef();

    } else {
        throw new InvalidObjectException("unexpected activator type");
    }
    out.writeUTF(ref.getRefClass(out));
    ref.writeExternal(out);
}
 

public static void main(String[] args) throws Exception {

        RemoteInterface server = null;
        RemoteInterface proxy = null;

        try {
            System.setProperty("java.rmi.server.ignoreStubClasses", args[0]);
            boolean ignoreStubClasses = Boolean.parseBoolean(args[0]);

            if (System.getSecurityManager() == null) {
                System.setSecurityManager(new SecurityManager());
            }

            System.err.println("export object");
            server = new UseDynamicProxies();
            proxy =
                (RemoteInterface) UnicastRemoteObject.exportObject(server, 0);

            System.err.println("proxy = " + proxy);
            if (ignoreStubClasses) {
                if (!Proxy.isProxyClass(proxy.getClass())) {
                    throw new RuntimeException(
                        "server proxy is not a dynamic proxy");
                }
                if (!(Proxy.getInvocationHandler(proxy) instanceof
                      RemoteObjectInvocationHandler))
                {
                    throw new RuntimeException("invalid invocation handler");
                }

            } else if (!(proxy instanceof RemoteStub)) {
                throw new RuntimeException(
                    "server proxy is not a RemoteStub");
            }

            System.err.println("invoke methods");
            Object obj = proxy.passObject(proxy);
            if (!proxy.equals(obj)) {
                throw new RuntimeException("returned proxy not equal");
            }

            int x = proxy.passInt(53);
            if (x != 53) {
                throw new RuntimeException("returned int not equal");
            }

            String string = proxy.passString("test");
            if (!string.equals("test")) {
                throw new RuntimeException("returned string not equal");
            }

            System.err.println("TEST PASSED");

        } finally {
            if (proxy != null) {
                UnicastRemoteObject.unexportObject(server, true);
            }
        }
    }
 

/**
 * <code>writeObject</code> for custom serialization.
 *
 * <p>This method writes this object's serialized form for
 * this class as follows:
 *
 * <p>The <code>writeObject</code> method is invoked on
 * <code>out</code> passing this object's unique identifier
 * (a {@link java.rmi.server.UID UID} instance) as the argument.
 *
 * <p>Next, the {@link
 * java.rmi.server.RemoteRef#getRefClass(java.io.ObjectOutput)
 * getRefClass} method is invoked on the activator's
 * <code>RemoteRef</code> instance to obtain its external ref
 * type name.  Next, the <code>writeUTF</code> method is
 * invoked on <code>out</code> with the value returned by
 * <code>getRefClass</code>, and then the
 * <code>writeExternal</code> method is invoked on the
 * <code>RemoteRef</code> instance passing <code>out</code>
 * as the argument.
 *
 * @serialData The serialized data for this class comprises a
 * <code>java.rmi.server.UID</code> (written with
 * <code>ObjectOutput.writeObject</code>) followed by the
 * external ref type name of the activator's
 * <code>RemoteRef</code> instance (a string written with
 * <code>ObjectOutput.writeUTF</code>), followed by the
 * external form of the <code>RemoteRef</code> instance as
 * written by its <code>writeExternal</code> method.
 *
 * <p>The external ref type name of the
 * <code>RemoteRef</Code> instance is
 * determined using the definitions of external ref type
 * names specified in the {@link java.rmi.server.RemoteObject
 * RemoteObject} <code>writeObject</code> method
 * <b>serialData</b> specification.  Similarly, the data
 * written by the <code>writeExternal</code> method and read
 * by the <code>readExternal</code> method of
 * <code>RemoteRef</code> implementation classes
 * corresponding to each of the defined external ref type
 * names is specified in the {@link
 * java.rmi.server.RemoteObject RemoteObject}
 * <code>writeObject</code> method <b>serialData</b>
 * specification.
 **/
private void writeObject(ObjectOutputStream out)
    throws IOException, ClassNotFoundException
{
    out.writeObject(uid);

    RemoteRef ref;
    if (activator instanceof RemoteObject) {
        ref = ((RemoteObject) activator).getRef();
    } else if (Proxy.isProxyClass(activator.getClass())) {
        InvocationHandler handler = Proxy.getInvocationHandler(activator);
        if (!(handler instanceof RemoteObjectInvocationHandler)) {
            throw new InvalidObjectException(
                "unexpected invocation handler");
        }
        ref = ((RemoteObjectInvocationHandler) handler).getRef();

    } else {
        throw new InvalidObjectException("unexpected activator type");
    }
    out.writeUTF(ref.getRefClass(out));
    ref.writeExternal(out);
}