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Secure FTP supported by Jakarta Commons Net?

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- 1
  - class data sharing subjective test resultsHi all,
    
    I made some tests with the new "Class Data Sharing" function
    provided by the JVM (since version 1.5.0 / 5.0) and decided
    to share my class data sharing discoveries with the group
    (this topic is not often discussed here).
    
    The tests were made on an Un*x system (Linux Fedora Core 3).
    
    First of all, the performance gain is very real, especially
    when launching lots of small apps.
    
    Basically, it comes down to using the parameter/value
    "-Xshare:off", "-Xshare:on" or "-Xshare:auto" (which is
    the default) when calling the JVM.
    
    The command line: "java -Xshare:dump" can be used to
    force the creation of the memory-mapped archive file
    (the shared classes). (btw this step is apparently
    necessary on some Un*x systems!?. My system would
    /not/ default to using the sharing, I had to
    -Xshare:dump once and then add -Xshare:on to force my
    application sharing the classes.)
    
    I had some "text file utilities" I wrote in Java which I'm
    used to call from the command line (or from shell scripts).
    This is clearly one area where the JVM's startup time
    is a problem. I noticed gain of about 30% in this case
    (using a non-scientific approach repeated many case, with
    and without CDS).
    
    If the JVM is installed in userland, each user will have his
    own "cached" file (classes.jsa, about 11 Mb on my machine).
    
    If only one JVM is installed for all the users, all the
    users will share the same classes.jsa file (JSA for "Java
    Shared Archive").
    
    It may be possible to force different identical JVM
    installed in different userland to use the same classes.jsa
    but I didn't try to do this (simply copying the classes.jsa
    file from one user on top of the classes.jsa file of another
    user doesn't work, although the files have the same
    length [but different checksums]).
    
    I was pleasingly surprised by those first results and I
    decided to force all my apps to use the JVM 1.5.0 and its
    class data sharing feature, including IntelliJ IDEA (which
    comes with its own JRE and refuse to run with an 1.5 JRE
    without some hacking).
    
    After days of "switching" to an 1.5 JVM and forcing all my
    apps to use class data sharing, I can tell that overall
    everything "Java related" is a little bit more responsive.
    It is particularly noticeable when calling Java utilities
    from the command line (which is no surprise) but also when
    running unit tests (I tend to launch my test(s) quite often).
    
    The memory footprint is also reduced compared to 1.4.2
    (when running several apps).
    
    I'm curious about your results too :)
    
    See you all very soon (and "hi" to the c.l.j.p. regular
    I met on freenode's #java saturday ;),
    
    Jean
    
    P.S : If I understood correctly, Apple made their
    own class data sharing "hack" for Java (way before 1.5)
    and Sun basically copied their "idea". Whatever... This
    means that developers using MacOS X benefits automagically
    from "class sharing" since quite some time and have
    nothing particular to do in order to use it.
- 2
  - Hashtable qWhen traversing an Enumeration of Hashtable keys, I know that modifying the
    HT can cause problems. But is doing lookups okay? E.g., in the following
    code:
    
    <assume ht is a reference to a Hashtable object>
    Enumeration e = ht.keys();
    Object o;
    while(e.hasmore()) {
    o = e.next();
    System.out.println(o + ": " + ht.get(o));
    }
    
    Is this guaranteed to print out all of the key-value pairs?
- 5
  - how to map from display metrics to physical metrics...Suppose I have a screen which is 1024x768, how can I map this rectangle in
    pixels into physical world dimensions in meters or in inches? Actually I
    want to know the physical size of the viewable area of the monitor...
    
    Please help me...
- 5
  - Induction question, help needed.Help needed on this question. Any help is appreciated. Thanks in
    advance.
    
    Given a binary string (i.e. a finite sequence of 0's and 1's) we
    choose any two digit substring 01 and replace it by a string of the
    form 100...0 using an arbitrary (but finite) number of zeros. Prove
    by induction that this transformation can not be performed infinitely
    many times, i.e. this sequence of transformations must terminate for
    any input string.
- 6
  - Problem with update Manager in eclipseHi
    
    I have been trying to access the eclipse update site.
    Unfortunately when I go on the newly created eclipse item
    in the feature updates pane things seem to stop. A
    message
    
    Connecting... Connecting to
    "http://update.eclipse.org/updates"
    
    appears but nothing happens and the screen kind of hangs
    until i press the red button (cancel current operation
    option). I work from behind a proxy. I did the
    appropriate settings in the preferences (entering the proxy name and
    port). I expect to be asked for my username and password and
    subsequently
    be shown the builds. But nothing seems to be
    happening.
    
    But if I go to the eclipse item, right click and in
    the properties select "website" instead of the "update
    site" everything seems to work fine....as in i access the site
    (updates still missing)
    
    What is the reason of this behavior could i be doing
    something wrong? I am new to eclipse....could anybody please help.
    
    regards
- 7
  - JDialog (or any window) sizingI would like my JDialog to pop up with a size that is just adequate to
    contain what is within, which includes various components and layouts in
    the hierarchy. I'm hoping someone can tell me in a nutshell what
    sequence of operations to perform.
- 8
  - What happensHi,
    
    Am a newbie to CORBA. What happens when a CORBA object is destroyed? I
    heard that its ORB reference becomes invalid? If this' true, what
    exactly is meant by 'invalid'? What if I try to refer the object after
    it is destroyed? And also how do I come to know if the object is
    destroyed?
    
    Thanks.
- 8
  - Is there a startup banner class?Hello,
    
    I have an application to which I would like to add a startup banner.
    Much like other applications that display this banner while performing
    a somewhat lenghty (by computing standards) process in the background,
    I have the same need.
    
    Is there a class that supplies the panel (banner) and methods to
    determine when the background process has completed?
    
    Thanks in advance,
    Todd
- 9
  - Open Source Document Management in JavaHas anybody tried "Corendal DocSide" from http://www.corendal.com ? It
    looks like a pretty clean electronic document management application.
    Any experience with this tool ? (demo at
    http://www.corendal.com/java-corendal/docside/home/)
- 10
  - Array reference in for loopI have a validate method in a bean class that works and now I want to
    condense it into a for loop.
    
    Here is what I have:
    
    //firstname and lastname are declared earlier
    public boolean validate()
    {
    boolean allOk=true;
    if (firstName.equals("")) {
    errors.put("firstName","Please enter your first name");
    allOk=false;
    }
    if (lastName.equals("")) {
    errors.put("lastName","Please enter your last name");
    allOk=false;
    }
    return allOk;
    }
    
    My attempt doesnt work because I cant seem to figure out how to put
    the array reference in the key part of the errors.put method:
    
    public boolean validate()
    {
    boolean allOk=true;
    String [] myarray = {firstname, lastname}
    for(int i=0;i < myarray.length;i++)
    {
    if (myarray[i].equals("")) {
    errors.put(myarray[i],"Please enter your " + myarray[i]);
    allOk=false;
    }
    }
    return allOk;
    }
    
    The results dont validate any of my data so I assume I have something
    wrong with my array. Please advise.
- 10
  - "this" statement?The "this" statement that is used in the method "exitRoom" and "explore" is
    that synonymous with an "Explorer" object?
    
    public class Explorer implements PlayerBehavior {
    
    private String my_name;
    private String my_secret_word;
    private RoomBehavior where_I_am_now;
    
    public Explorer(String name, String word){
    
    my_name = name;
    my_secret_word = word;
    where_I_am_now = null;
    
    }
    
    public String speak(){
    
    return my_secret_word; }
    
    public void exitRoom(){
    
    if ( where_I_am_now != null )
    { where_I_am_now.exit(this);
    where_I_am_now = null;
    }
    }
    
    public boolean explore(RoomBehavior r){
    
    if ( where_I_am_now != null )
    { exitRoom(); }
    
    boolean went_inside = r.enter(this);
    if ( went_inside )
    { where_I_am_now = r; }
    return went_inside;
    }
    
    public RoomBehavior locationOf(){
    
    return where_I_am_now; }
    }
- 10
  - RPN CalculatorI've searched the web for a couple of hours for a calculator with this
    requirements
    
    It has to
    
    0) be free to download and use
    1) be able of RPN
    2) be able to run in a standalone window (i.e. not in a web browser)
    3) be written in java
    4) preferably be open source
    
    Someone who can give me a hint???
- 10
  - Bug or featureHi, can someone explain the behaviour of that snip
    
    public class Test
    {
    public static void main(String[] args)
    {
    
    try
    {
    Class c = Class.forName("BUG");
    }
    catch (ClassNotFoundException e)
    {
    }
    System.out.println("Everything works?");
    
    try
    {
    Class c = Class.forName("NotbUg");
    }
    catch (ClassNotFoundException e)
    {
    }
    System.out.println("Still works?");
    
    try
    {
    Class c = Class.forName("bUg");
    }
    catch (ClassNotFoundException e)
    {
    }
    System.out.println("Everything works!!");
    }
    }
    
    class BUG
    {
    }
    
    In not works on JDK 1.4.2 but JDK 1.1.4. Bug or feature that question is.
    
    Thanks in advance.
    
    Serge
- 13
  - aliasHi,
    
    I may be jumping guns here. I mean I'm totally new to java and yet, I
    feel the need to do something like this for typing much less,
    
    o = System.out.println; // problem, what data type for var of o here?
    undefined.
    or
    alias o = System.out.println; // alias is supposed to be a special
    command or the sort?
    
    then, I do something like this
    
    for (int i=0; i < 5; i++) {
    switch(i)
    case 0:
    case 2:
    case 4:
    o(i + " is an even number"); // instead of System.out.println(i +
    " is an even number");
    break;
    case 1:
    case 3:
    case 5:
    o(i + " is an odd number"); // instead of System.out.println(i + "
    is an odd number");
    break;
    default:
    o(i + " is neither an odd nor even number");
    // instead of System.out.println(i + " is neither an odd nor even
    number");
    }
    
    Doable? How? TIA.
- 15
  - CloneableWould have been possible to some how redefine Cloneable so that clone
    did not return an object but rather at object of the type implementing
    clone?
    
    --
    Bush crime family lost/embezzled $3 trillion from Pentagon.
    Complicit Bush-friendly media keeps mum. Rumsfeld confesses on video.
    http://www.infowars.com/articles/us/mckinney_grills_rumsfeld.htm
    
    Canadian Mind Products, Roedy Green.
    See http://mindprod.com/iraq.html photos of Bush's war crimes

Author

Message

ht6554

Posted: 2006-4-7 4:30:00

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java-programmer, Secure FTP supported by Jakarta Commons Net? Does the FTP feature in Jakarta Commons/NET component support the
secure FTP (SFTP or FTPS)?

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- 1
  - converting paper space to model space in dxf filesHello wise guys!
    
    I'm writing a piece of code (java) that shold parse and draw the
    content of a DXF file. The trouble is that some blocks (usually texts
    or legend) are given in paper space. Can anyone give me a hint how
    paper coordinates should be converted to model coordinates? Thanks a
    lot!
    
    Adrian
- 2
  - "NullPointerException". (was Re: ArrayOutOfbounds, how come?)Mark Haase wrote:
    >
    > What exception, exactly?? Your subject says
    > "ArrayOutOfBounds" but the catch block is
    > "NullPointerException".
    
    you got it right. it is indeed "NullPointerException".
    mea culpa.
    
    > You shouldn't be getting ArrayOutOfBoundsException, but
    > your code will generate a NPE everytime because of a
    > noobie mistake that you're making.
    
    what is noobie?
    
    > Below, you initialize a new array of JButton references,
    > but each reference is still null.
    >
    >> button = new JButton[8][14];
    >
    > You need to put an object in each one of them before you
    > start making calls like:
    >
    >
    >> button[gridY1][gridX1].setText(button_text);
    >
    > How can you call setText on an object that doesn't exist?
    > You can't. The runtime lets you know by throwing NPE.
    >
    > Do this:
    >
    > for (int i=0; i<8; i++)
    > for (int j=0; j<14; j++)
    > button[i][j] = new JButton();
    >
    > In the future, be more specific when you say "I have an
    > error!! help!"..Name the exact error.
    
    done.
    
    no way. After changing to the following, it compiled pretty
    well, but is still giving npe at = line.
    -------------
    JButton[][] button;
    -----------------
    for (int gridY1 = 0; gridY1 < d_rows; gridY1++) {
    for (int gridX1 = 0; gridX1 < d_columns;
    gridX1++) {
    button[gridY1][gridX1] = new JButton();
    }
    }
    -------------
    when I changed the above block according to what was
    suggested by Mr John in another thread of Mr Mike:
    -------------
    JButton[][] button = new JButton[d_rows][d_columns];
    for (int gridY1 = 0; gridY1 < d_rows; gridY1++) {
    for (int gridX1 = 0; gridX1 < d_columns;
    gridX1++) {
    button[gridY1][gridX1] = new JButton();
    }
    }
    -------------
    it again got compiled flawlessly, but I got npe at a further
    line where I am refering a button for the first time:
    ------------
    button[gridY1][gridX1].setText(button_text);
    ------------
    
    what next?
    
    -rawat
- 3
  - UIDefaults.getUI() failed for JInternalFrame$JDesktopIconI am using a particular Look and Feel, and a class derived from
    JInternalFrame. Whenever the JInternalFrame class is invoked, it generated
    an exception (please see stack trace at the bottom of this message).
    
    I know that to correct this exception, I must do something along the lines
    of the following:
    
    UIManager.put(XXX, YYY);// Where XXX is the String used to identify the
    JInternalFrame$JDesktopIcon's UIand YYY the ui class for it.
    
    However, I do not know how to go about discerning the values for XXX and
    YYY. How can I find those out? I have tried:
    UIManager.getLookAndFeelDefaults().put("ClassLoader",
    getClass().getClassLoader());
    UIManager.put("JDesktopIcon",
    javax.swing.JInternalFrame.JDesktopIcon.class.getName());
    UIManager.put("JInternalFrame",
    javax.swing.JInternalFrame.class.getName());
    updateUI();
    
    With no luck at al. Can someone please help me to find out what parameters I
    need to pass here? Thanks, Ike
    
    --------stack trace-----------------------
    UIDefaults.getUI() failed: no ComponentUI class for:
    javax.swing.JInternalFrame$JDesktopIcon[,0,0,0x0,invalid,hidden,alignmentX=0
    .0,alignmentY=0.0,border=,flags=0,maximumSize=,minimumSize=,preferredSize=]
    java.lang.Error
    at javax.swing.UIDefaults.getUIError(Unknown Source)
    at javax.swing.MultiUIDefaults.getUIError(Unknown Source)
    at javax.swing.UIDefaults.getUI(Unknown Source)
    at javax.swing.UIManager.getUI(Unknown Source)
    at javax.swing.JInternalFrame$JDesktopIcon.updateUI(Unknown Source)
    at javax.swing.JInternalFrame$JDesktopIcon.<init>(Unknown Source)
    at javax.swing.JInternalFrame.<init>(Unknown Source)
    at RalphVince.Controls.JScrollableDesktopPane.BaseInternalFrame.<init>()
- 4
  - X3D and Java3DDoes anyone know if there are debs for X3D and Java3D that will work
    with Sarge? It seems that X3D depends on Java3D. I have the X3D jar
    but would prefer if possible to have a deb. I can't find either for
    Java3D and Sarge, the jars seem to be all for Woody. I know I'll need
    the nVidia drivers for my TNT2 card for this to work, but I think I can
    get those (if I can figure out which of the legacy drivers will work).
    
    I have the Sun 1.5 jre and sdk.
    
    Thanks!
    
    --
    Blessings
    
    Wulfmann
    
    Wulf Credo:
    Respect the elders. Teach the young. Co-operate with the pack.
    Play when you can. Hunt when you must. Rest in between.
    Share your affections. Voice your opinion. Leave your Mark.
    
    --
    To UNSUBSCRIBE, email to email***@***.com
    with a subject of "unsubscribe". Trouble? Contact email***@***.com
- 5
  - hibernate w/derby simple crudhi-
    
    i am really new to hibernate.
    i thought it would be cool to use in my hobby.
    i want to make the code that deals with the db more readable in my projects.
    i hope hibernate can help me in that regard.
    
    i am trying to add a record?
    i get an error that says attempting to modify an identity column.
    i didnt specify the identity column in my constructor call.
    
    i saw how to iterate through the table (read using HQL) but am looking
    for an example of create,update, delete. i am missing the example
    somewhere in my book (hibernate in action).
    
    with delete i probably just set part of a collection to null....right?
    
    if i can get help on this identity column issue, i may be able to figure the
    examples out myself.
    thank you,
    jim
    
    Session session = HibernateUtil.getSessionFactory().openSession();
    Transaction tx = session.beginTransaction();
    Date d1 = new Date(2006-10-14);
    Date d2 = new Date(2006-10-15);
    Accounts accounts = new Accounts("boo",d1,d2);
    
    session.save(accounts);
    tx.commit();
    session.close();
    
    --------------------------------------------------------------------------
    // pojo
    package bcalcpkg;
    // Generated Jan 6, 2007 1:38:27 AM by Hibernate Tools 3.2.0.beta8
    import java.util.Date;
    import javax.persistence.Column;
    import javax.persistence.Entity;
    import javax.persistence.Id;
    import javax.persistence.Table;
    import javax.persistence.Temporal;
    import javax.persistence.TemporalType;
    import javax.persistence.GeneratedValue;
    /**
    * Accounts generated by hbm2java
    */
    @Entity
    @org.hibernate.annotations.Entity(
    dynamicInsert = true, dynamicUpdate = true)
    @Table(name = "ACCOUNTS", schema = "USER1", uniqueConstraints = {})
    public class Accounts implements java.io.Serializable {
    // Fields
    @Id @GeneratedValue
    @Column(name = "ACCOUNTID")
    private int accountid;
    @Column(name = "ACCOUNTNAME")
    private String accountname;
    @Column(name = "ACCOUNTOPEN")
    private Date accountopen;
    @Column(name = "ACCOUNTCLOSE")
    private Date accountclose;
    
    // Constructors
    /** default constructor */
    public Accounts() {
    }
    /** minimal constructor */
    public Accounts(int accountid, String accountname, Date accountopen) {
    this.accountid = accountid;
    this.accountname = accountname;
    this.accountopen = accountopen;
    }
    /** full constructor */
    public Accounts( String accountname, Date accountopen,
    Date accountclose) {
    //this.accountid = accountid;
    this.accountname = accountname;
    this.accountopen = accountopen;
    this.accountclose = accountclose;
    }
    //public Accounts(String text) {
    //this.text = text;
    //}
    
    // Property accessors
    @Id
    @Column(name = "ACCOUNTID", unique = true, nullable = false, insertable =
    true, updatable = true)
    public int getAccountid() {
    return this.accountid;
    }
    public void setAccountid(int accountid) {
    this.accountid = accountid;
    }
    @Column(name = "ACCOUNTNAME", unique = false, nullable = true, insertable =
    true, updatable = true, length = 50)
    public String getAccountname() {
    return this.accountname;
    }
    public void setAccountname(String accountname) {
    this.accountname = accountname;
    }
    @Temporal(TemporalType.DATE)
    @Column(name = "ACCOUNTOPEN", unique = false, nullable = true, insertable =
    true, updatable = true, length = 10)
    public Date getAccountopen() {
    return this.accountopen;
    }
    public void setAccountopen(Date accountopen) {
    this.accountopen = accountopen;
    }
    @Temporal(TemporalType.DATE)
    @Column(name = "ACCOUNTCLOSE", unique = false, nullable = true, insertable
    = true, updatable = true, length = 10)
    public Date getAccountclose() {
    return this.accountclose;
    }
    public void setAccountclose(Date accountclose) {
    this.accountclose = accountclose;
    }
    
    }
- 6
  - Final member troubleimport java.awt.Image;
    import javax.imageio.ImageIO;
    import java.io.*;
    
    public class FinalTryCatch {
    
    final Image someImage;
    
    public FinalTryCatch() {
    try {
    someImage = ImageIO.read(new File("someImageFile.gif"));
    } catch (IOException ioe) {
    someImage = null;
    }
    }
    
    public static void main(String[] args) {
    FinalTryCatch f = new FinalTryCatch();
    // Do some stuff
    }
    }
    
    This fails to compile with "variable someImage might already have been
    assigned" on "someImage = null;". Remove that line and it complains,
    "variable someImage might not have been initialized". Obviously. What would
    you do in this situation? Make the variable non-final? Have the constructor
    throw IOException? Something else?
- 7
  - JavaScript for MaximizationHi. I want onLoad(), to make my current IE window "maximized." I can resize
    the window to Screen.width/height but the problem with that is that it
    includes the full screen height (including the task-bar) and I need it to be
    without the task bar. Any way to do this? Preferably a way that's
    browser-independant but IE-specific if need be.
    
    Alex
- 8
  - Long delay using SSLSocketFactoryHi all,
    
    I need to do HTTPS requests from a WLS container through a proxy which
    requires encoded username/password authentication. Therefore, I am
    using an extension of SSLSocketFactory (part of SUN's JSSE), which
    does the proxy authentication for me and the tunnel handshake as well.
    
    Principally, the solution I thought of works. However, after starting
    the WLS, the very first connection to the proxy takes more than two
    minutes. Running the test once again, the connection to the proxy is
    established almost instantaneously. Can anyone explain the long delay
    in the first connection? It occurs when invoking method
    SSLSocketFactory.getDefault() (see the below code snippet).
    
    I scanned the port of the proxy and found no activity during the
    delay. Neither, there are any outgoing TCP packages from the source
    machine (where the JVM is running). So I assume that the delay is not
    due to a network problem; it must be somewhere in the depths of the
    JSSE classes.
    
    Best regards,
    Thomas Mantay
    
    Here is the code I am using:
    
    import java.net.*;
    import java.io.*;
    import java.security.*;
    import sun.misc.BASE64Encoder;
    import javax.net.*;
    import javax.net.ssl.*;
    
    public class SSLTunnelSocketFactory extends SSLSocketFactory {
    private String tunnelHost;
    private int tunnelPort;
    private SSLSocketFactory dfactory;
    private String tunnelPassword;
    private String tunnelUserName;
    private boolean socketConnected = false;
    private int falsecount = 0;
    
    /**
    * Constructor for the SSLTunnelSocketFactory object
    *
    *@param proxyHost The url of the proxy host
    *@param proxyPort the port of the proxy
    *@param proxyUserName username for authenticating with the
    proxy
    *@param proxyPassword password for authenticating with the
    proxy
    */
    public SSLTunnelSocketFactory(String proxyHost, int proxyPort,
    String proxyUserName, String proxyPassword) {
    NLUtil.ldebug("SSLTunnelSocketFactory", "Constructor", "creating
    Socket Factory with password/username");
    tunnelHost = proxyHost;
    tunnelPort = proxyPort;
    tunnelUserName = proxyUserName;
    tunnelPassword = proxyPassword;
    NLUtil.ldebug("SSLTunnelSocketFactory", "Constructor", "before
    getDefault()");
    
    Here is the line that causes the delay:
    
    dfactory = (SSLSocketFactory) SSLSocketFactory.getDefault();
    NLUtil.ldebug("SSLTunnelSocketFactory", "Constructor", "after
    getDefault()");
    }
    
    /**
    * Gets the supportedCipherSuites attribute of the
    SSLTunnelSocketFactory
    * object
    *
    *@return The supportedCipherSuites value
    */
    public String[] getSupportedCipherSuites() {
    return dfactory.getSupportedCipherSuites();
    }
    
    /**
    * Gets the defaultCipherSuites attribute of the
    SSLTunnelSocketFactory
    * object
    *
    *@return The defaultCipherSuites value
    */
    public String[] getDefaultCipherSuites() {
    return dfactory.getDefaultCipherSuites();
    }
    
    /**
    * Gets the socketConnected attribute of the
    SSLTunnelSocketFactory object
    *
    *@return The socketConnected value
    */
    public synchronized boolean getSocketConnected() {
    return socketConnected;
    }
    
    /**
    * Creates a new SSL Tunneled Socket
    *
    *@param s Ignored
    *@param host destination host
    *@param port destination port
    *@param autoClose wether to close the socket
    automaticly
    *@return proxy tunneled socket
    *@exception IOException raised by an IO error
    *@exception UnknownHostException raised when the host is
    unknown
    */
    public Socket createSocket(Socket s, String host, int port,
    boolean autoClose)
    throws IOException, UnknownHostException {
    Socket tunnel = new Socket(tunnelHost, tunnelPort);
    doTunnelHandshake(tunnel, host, port);
    SSLSocket result = (SSLSocket) dfactory.createSocket(tunnel,
    host, port, autoClose);
    result.addHandshakeCompletedListener(
    new HandshakeCompletedListener() {
    public void handshakeCompleted(HandshakeCompletedEvent
    event) {
    NLUtil.ldebug("SSLTunnelSocketFactory", "handshakeCompleted",
    "Handshake Finished!");
    NLUtil.ldebug("SSLTunnelSocketFactory", "handshakeCompleted",
    "CipherSuite :" + event.getCipherSuite());
    NLUtil.ldebug("SSLTunnelSocketFactory", "handshakeCompleted",
    "SessionId: " + event.getSession());
    NLUtil.ldebug("SSLTunnelSocketFactory", "handshakeCompleted",
    "PeerHost: " + event.getSession().getPeerHost());
    setSocketConnected(true);
    }
    });
    // thanks to David Lord in the java forums for figuring out
    this line is the problem
    // result.startHandshake(); //this line is the bug which stops
    Tip111 from working correctly
    return result;
    }
    
    /**
    * Creates a new SSL Tunneled Socket
    *
    *@param host destination host
    *@param port destination port
    *@return tunneled SSL Socket
    *@exception IOException raised by IO error
    *@exception UnknownHostException raised when the host is
    unknown
    */
    public Socket createSocket(String host, int port)
    throws IOException, UnknownHostException {
    return createSocket(null, host, port, true);
    }
    
    /**
    * Creates a new SSL Tunneled Socket
    *
    *@param host Destination Host
    *@param port Destination Port
    *@param clientHost Ignored
    *@param clientPort Ignored
    *@return SSL Tunneled Socket
    *@exception IOException Raised when IO error occurs
    *@exception UnknownHostException Raised when the destination
    host is
    * unknown
    */
    public Socket createSocket(String host, int port, InetAddress
    clientHost,
    int clientPort)
    throws IOException, UnknownHostException {
    return createSocket(null, host, port, true);
    }
    
    /**
    * Creates a new SSL Tunneled Socket
    *
    *@param host destination host
    *@param port destination port
    *@return tunneled SSL Socket
    *@exception IOException raised when IO error occurs
    */
    public Socket createSocket(InetAddress host, int port)
    throws IOException {
    return createSocket(null, host.getHostName(), port, true);
    }
    
    /**
    * Creates a new SSL Tunneled Socket
    *
    *@param address destination host
    *@param port destination port
    *@param clientAddress ignored
    *@param clientPort ignored
    *@return tunneled SSL Socket
    *@exception IOException raised when IO exception occurs
    */
    public Socket createSocket(InetAddress address, int port,
    InetAddress clientAddress, int clientPort)
    throws IOException {
    return createSocket(null, address.getHostName(), port, true);
    }
    
    /**
    * Sets the socketConnected attribute of the
    SSLTunnelSocketFactory object
    *
    *@param b The new socketConnected value
    */
    private synchronized void setSocketConnected(boolean b) {
    socketConnected = b;
    }
    
    /**
    * Description of the Method
    *
    *@param tunnel tunnel socket
    *@param host destination host
    *@param port destination port
    *@exception IOException raised when an IO error occurs
    */
    private void doTunnelHandshake(Socket tunnel, String host, int
    port) throws IOException {
    NLUtil.ldebug("SSLTunnelSocketFactory", "doTunnelHandshake",
    "doTunnelHandshake start");
    OutputStream out = tunnel.getOutputStream();
    //generate connection string
    String msg = "CONNECT " + host + ":" + port + " HTTP/1.0\n"
    + "User-Agent: "
    + sun.net.www.protocol.http.HttpURLConnection.userAgent;
    if (!tunnelUserName.equals("") && !tunnelPassword.equals(""))
    {
    NLUtil.ldebug("SSLTunnelSocketFactory", "doTunnelHandshake",
    "Using proxy authencation with username '" + tunnelUserName + "' and
    password '" + tunnelPassword + "'.");
    //add basic authentication header for the proxy
    sun.misc.BASE64Encoder enc = new sun.misc.BASE64Encoder();
    String encodedPassword = enc.encode((tunnelUserName + ":"
    + tunnelPassword).getBytes());
    msg = msg + "\nProxy-Authorization: Basic " +
    encodedPassword;
    }
    msg = msg + "\nContent-Length: 0";
    msg = msg + "\nPragma: no-cache";
    
    msg = msg + "\r\n\r\n";
    
    NLUtil.ldebug("SSLTunnelSocketFactory", "doTunnelHandshake", "msg:
    " + msg);
    
    byte b[];
    try {
    //we really do want ASCII7 as the http protocol doesnt
    change with locale
    b = msg.getBytes("ASCII7");
    } catch (UnsupportedEncodingException ignored) {
    //If ASCII7 isn't there, something is seriously wrong!
    b = msg.getBytes();
    }
    out.write(b);
    out.flush();
    
    byte reply[] = new byte[200];
    int replyLen = 0;
    int newlinesSeen = 0;
    boolean headerDone = false;
    
    InputStream in = tunnel.getInputStream();
    boolean error = false;
    
    while (newlinesSeen < 2) {
    int i = in.read();
    if (i < 0) {
    throw new IOException("Unexpected EOF from Proxy");
    }
    if (i == '\n') {
    headerDone = true;
    ++newlinesSeen;
    } else
    if (i != '\r') {
    newlinesSeen = 0;
    if (!headerDone && replyLen < reply.length) {
    reply[replyLen++] = (byte) i;
    }
    }
    }
    
    //convert byte array to string
    String replyStr;
    try {
    replyStr = new String(reply, 0, replyLen, "ASCII7");
    } catch (UnsupportedEncodingException ignored) {
    replyStr = new String(reply, 0, replyLen);
    }
    
    //we check for connection established because our proxy
    returns http/1.1 instead of 1.0
    if (replyStr.toLowerCase().indexOf("200 connection
    established") == -1) {
    NLUtil.ldebug("SSLTunnelSocketFactory", "doTunnelHandshake",
    "replyStr: " + replyStr);
    System.err.println(replyStr);
    throw new IOException("Unable to tunnel through " +
    tunnelHost + ":" + tunnelPort + ". Proxy returns\"" + replyStr +
    "\"");
    }
    //tunneling hanshake was successful
    }
    
    }
- 9
  - analytical Skill for Java Development> As an experiment, give an "experienced" developer a problem and watch
    > their
    > analytical and problem solving skills seriously fail him/her. This of
    > course, is the general case - there may be some corner cases where this
    > will
    > not occur.
    
    So how can one learn better problem solving skills? In addition to
    problem solving, where can one find better algorithms to use?
- 10
  - JTextField : limit number of input charactersHi,
    
    How can I do limit the number of character into a JTextField component ? I'm
    a Newbie, and I've some problem with this.
    
    Other question, in a JTable, how can I do to put a DropDown into a field
    from a column ?
    
    Thanks for all
    
    Bernard
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- 12
  - Swing - how to catch all eventsProgramming in java for a while now, but I still have this silly
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    I have a Swing app. Yes, simple stuff eh. Next, user logins to use
    the app. If they don't do anything (mouse move, key press) for a
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    advance.
- 13
  - Creating Object With Methods During RuntimeHello All,
    
    Is there a way to have a method create and name an object?
    
    If my question is not clear, what I mean is instead of this:
    
    ...
    Person abc = new Person();
    ...
    
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    ...
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    //the programmer nor the user are involved in this step directly
    
    private void createObject(String s)
    {
    Person s = new Person();
    }
    ...
    
    This might be used in a GUI simulation that is modeling the interaction
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    I hope that is enough to sufficiently explain what I am asking, in any case.
    
    By the way, just in case you are wondering, I have not tested the
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    now and I can't find what I'm looking for on the internet.
    
    Thanks very much to any who can help.
    
    A
- 14
  - what needed for j2me
    
    hi all, I'm starting developing stuff for siemens c55, but for starting
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    nuno silva
- 15
  - why allow multiple classes in one file?Hello,
    
    I'm pretty new to Java, so please don't yell at me if my question is
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    Each public file should be in a separate file. I don't understand why
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    Thanks,
    Hilbert