java-programmer >>Configuring Tomcat to NOT use webapps directory

Configuring Tomcat to NOT use webapps directory

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- 1
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    I have a command line application. It does something and prints texts on the
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    on the screen and show it in the textarea. Can it by done? How?
    
    Regards,
    Marcin
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    -XRunprofilerDLL or -Xrunpri . How are these things handled?
    I know the basics of proifiler implementing a profiler agent talking
    to jvm through jvmpi. But I am not sure how they start themselves and
    load the tobeprofiled app. And it seems we can also "attach"
    themselves when the app is running provided the pid is known for the
    target jvm. How is this working?
    
    Thanks.
- 7
  - Beanshell self-reference causes memory leakDear All,
    
    I have come across a phenomena in Beanshell, which I am pretty sure is
    a bug. I have put together a very simple test. I wanted to know if
    anyone has already come across this, before I submit a bug report.
    
    I have included below the source for a very simple test which can be
    run from the command line. Although the test prints out memory usage,
    the phenomena is best observed using a memory tool such a JProfiler.
    Unfortunately, I can't attach here a screen-shot from JProfiler to
    graphically illustrate the problem.
    
    The core issue is this:
    If I setup a self-referencing circle with the Interpreter like so (in
    standard Java code):
    {
    this.interpreter = new bsh.Interpreter();
    this.interpreter.set( "ref", this );
    }
    It sets up objects in the JVM memory which can never ever be garbage
    collected, even though there is no reference them, and the "this"
    object is out of scope in the calling method.
    
    This is in contrast to, say a HashSet:
    {
    this.set = new HashSet();
    onethis.set.add( this );
    }
    This setup does appear to garbage collect when the "this" object goes
    out of scope.
    
    The code for Test.java is below. Its output follows. Note that after
    the self-referencing setup, roughly 90Kb has not been garbage
    collected, compared with 20Kb for the HashSet and 200 bytes for two
    java objects.
    
    Before tests
    ------------
    10528
    40
    ------------
    Waiting ...
    
    After object ref test
    ---------------------
    26944
    208
    ---------------------
    Waiting ...
    
    After HashSet test
    ------------------
    158280
    22760
    ------------------
    Waiting ...
    
    After Interpreter test
    ----------------------
    362648
    91352
    ----------------------
    Waiting ...
    
    If this test is run with JProfiler, it can be seen that both the
    self-referencing Test objects, and the self-referencing HashSet setup
    are successfully garbage collected.
    
    But JProfiler shows the Interpreter still in memory after the object of
    class Test has gone out of scope - at the very final part of the
    program.
    
    The Interpreter is not garbage collected.
    Obviously, if you do this enough in an application, it will cripple it
    for speed and eventually bomb out with an "Out of heap space" error.
    
    Any thoughts?
    
    Regards,
    
    Stewart
    
    import java.io.*;
    import java.util.*;
    import bsh.*;
    
    public class Test
    {
    private static Runtime r = Runtime.getRuntime();
    private static long baseline = 0L;
    
    public static void main(String[] args)
    throws Exception
    {
    System.gc();
    baseline = (r.maxMemory() - r.freeMemory());
    
    report("Before tests");
    
    twoObjectTest();
    
    report("After object ref test");
    
    hashSetTest();
    
    report("After HashSet test");
    
    interpreterTest();
    
    report("After Interpreter test");
    }
    
    private Test ref = null;
    private HashSet<Test> s = null;
    private Interpreter i = null;
    
    private static void twoObjectTest()
    {
    Test one = new Test();
    Test two = new Test();
    
    one.ref = two;
    two.ref = one;
    }
    
    private static void hashSetTest()
    {
    Test one = new Test();
    
    one.s = new HashSet<Test>();
    one.s.add( one );
    }
    
    private static void interpreterTest()
    throws EvalError
    {
    Test one = new Test();
    
    one.i = new Interpreter();
    one.i.set( "ref", one );
    }
    
    private static void report(String string)
    throws IOException
    {
    char[] lines = new char[string.length()];
    Arrays.fill(lines, '-');
    System.out.println( );
    System.out.println( string );
    System.out.println( lines );
    System.out.println( (r.maxMemory() - r.freeMemory() - baseline) );
    System.gc();
    System.out.println( (r.maxMemory() - r.freeMemory() - baseline) );
    System.out.println( lines );
    System.out.println("Waiting ...");
    new BufferedReader( new InputStreamReader( System.in )).readLine();
    }
    
    /**
    * I thought this might solve the problem, but of course, it never
    gets called.
    */
    protected void finalize()
    throws Throwable
    {
    i.set( "ref", null );
    i.unset( "ref" );
    i = null;
    }
    }
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    http://24.116.180.212:89/myhomeporn/Girlfriend.scr
    ytclxvejwzpkbdxsjlj
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  - How do I open a device in non-blocking mode?I'm a little stuck. I have a Linux device (a character device, like a
    serial port) called /dev/cm15a0. I can't use RXTXcomm as it doesn't
    recognize the device (and I'm having trouble recompile RXTX). I need
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    http://www.linuxha.com/ Main site
    http://linuxha.blogspot.com/ My HA Blog
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  - TemplatePrinter copiesI am trying to get a template to print multiple copies of a page. I thought
    it would be as simple as setting:
    
    printer.copies = 10;
    printer.collate = true;
    printer.usePrinterCopyCollate = true;
    
    This does not work. Do I have to program a for loop in the template to
    print each copy or is IE supposed to be creating the multiple copies
    (collated or not depending on the collate variable I set). The loop should
    be easy enough, but I was expecting IE to take care of it for me.
    
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  - External process output missingHello,
    
    I'm using Runtime.getRuntime().exec(procedureFile) to run external
    system commands stored in procedure files, and I get their output from
    process.getInputStream().
    
    This works OK in Windows, but when I try it in a Unix system I get the
    direct output (i.e. procedure echos) but not the output from the
    programs run by the procedure. For example:
    
    #!/bin/sh
    PATH=/bin:/usr/bin:/usr/local/bin:/usr/local/sysadm/bin:
    export PATH
    echo "Starting remote copy for $1"
    scp -r $1 map@remotehost:/apps/myapp
    echo "End of remote copy for $1"
    
    would return the two echo messages, but not the output from scp.
    
    Is there something that must be done or declared to get all the output
    in Unix?
    
    Thanks for any hint,
    
    Guifre
- 7
  - XMLEncoder & DefaultPersistenceDelegateI am trying to encode EventObject's as XML using XMLEncoder. As
    subclasses of EventObject/AWTEvent are generally NOT java beans (they
    do not provide a nullary constructor), I have to provide an instance of
    DefaultPersistenceDelegate which specifies which properties are set by
    the constructor. I tried to this with ActionEvent as follows:
    
    encoder.setPersistenceDelegate( ActionEvent.class, new
    DefaultPersistenceDelegate(
    new String[] {"source", "ID", "actionCommand", "modifiers",
    "when"} )
    );
    
    Unfortunately, when I call encoder.writeObject with an argument of type
    ActionEvent, I get the following exception:
    
    java.lang.NoSuchMethodException: <unbound>=Class.new(null, Integer,
    "1", Integer, Long);
    Continuing ...
    java.lang.Exception: XMLEncoder: discarding statement
    XMLEncoder.writeObject(ActionEvent);
    Continuing ...
    
    It is apparently unable to find the constructor due to the first
    argument being null. However, "source" in my ActionEvent happens to not
    be null. "source" is a property from EventObject rather than
    ActionEvent, and I think this may be part of the problem. I have read
    another post that says XMLEncoder has problems with superclass
    properties.
    
    Anybody have any ideas?
- 8
  - history.back problem with firefoxHi,
    
    I have 2 submit buttons in a jsp page. One of them takes me to
    page2.jsp and also passes the values enetered to page2.I have a link
    in the page2 that does a history.back to come to the previous page to
    make any chnages necessary. Now after making my changes, instead of
    going to page2.jsp if I want to submit the page, Instead of submitting
    the page it takes me to page2.jsp again.
    
    This problem is only with firefox. It works fine with IE. Can anyone
    help me on this?
- 9
  - Really simple one...I've managed to download, install and compile a swing program for the Mac OS
    9.2. Now I want to run it, but I don't know how! (I'm a non-mac user!). How
    do you run it (its not a jar)!
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  - Discussion on technologies-Bangalore & Chennai, IndiaHi!
    A leading MNC is organising an informal event in Bangalore, India (Oct
    6, 4 to 5 PM) and Chennai, India (Oct 14/15 - Tentative) to discuss
    different aspects of a technology and its use in business.
    
    The objective of the discussion is to
    1. Understand the views of techies on various technologies and
    platforms (Java, Linux, Unix, Microsoft etc)
    2. Perception and image of each of the platforms/technologies
    3. Utility of the engagement efforts taken up by the companies in the
    form of events, communities etc..,
    
    The duration would be 1 hour. You may participate in either Bang. or
    Chennai.
    
    To register send the following info to email***@***.com:
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    Participants, don't forget to collect goodies :)
- 14
  - Bug#285014: java-common; correction for README.Debian-----BEGIN PGP SIGNED MESSAGE-----
    Hash: SHA1
    
    Package: java-common
    Version: 0.222
    Severity: minor
    
    In the file /usr/share/doc/common-java/README.Debian, the following lines:
    
    They can be found at
    /usr/share/doc/java-common/debian-java-faq.html
    and
    /usr/share/doc/java-common/debian-java-policy.html
    
    should probably read:
    
    They can be found at
    /usr/share/doc/java-common/debian-java-faq/index.html
    and
    /usr/share/doc/java-common/debian-java-policy/index.html
    
    Thanks,
    - --
    Barry Hawkins
    All Things Computed
    site: www.alltc.com
    weblog: www.yepthatsme.com
    
    Registered Linux User #368650
    -----BEGIN PGP SIGNATURE-----
    Version: GnuPG v1.2.5 (GNU/Linux)
    
    iD8DBQFBuRhC7bZ6kUftWZwRAtOTAKDMHWW9jUWEaqVC/qZHq+Cq/T+ohwCfeqHZ
    nSqMQ2c9L16CzGJOOw+FoMo=
    =0S/K
    -----END PGP SIGNATURE-----
    
    --
    To UNSUBSCRIBE, email to email***@***.com
    with a subject of "unsubscribe". Trouble? Contact email***@***.com
- 15
  - JProgressBar... need assiatance pleaseI'm playing with the idea of showing a JProgressBar in a small App' I trying
    to make.
    I want to display the progress of an array being populated....however I cant
    seem to get the bar to show the actual % state before it reaches 100%
    Am I missing something out?
    Please help me if you can..
    
    Thanks...
    
    #######################
    CODE BELOW
    #######################
    
    import java.awt.*;
    import java.awt.event.*;
    import javax.swing.*;
    
    public class ArrayRandom extends JFrame {
    protected final int size = 100000;
    protected int[] prodRandm = new int[size];
    protected int min = 0;
    protected int max = 100;
    protected JProgressBar progress;
    protected JButton start;
    
    public ArrayRandom() {
    setSize(300,50);
    progress = new JProgressBar();
    progress.setStringPainted(false);
    progress.setIndeterminate(true);
    
    start = new JButton("Start");
    ActionListener act = new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    progress.setMinimum(min);
    progress.setMaximum(max);
    progress.setIndeterminate(false);
    progress.setStringPainted(true);
    for (int i = 0; i < size; i++) {
    prodRandm[i] = i;
    progress.setValue((i/1000)+1);
    progress.setString((i/1000)+1+" %");
    }
    }
    };
    start.addActionListener(act);
    getContentPane().setLayout(new BorderLayout(10,10));
    getContentPane().add(progress, BorderLayout.CENTER);
    getContentPane().add(start, BorderLayout.WEST);
    }
    
    public static void main(String[] args) {
    ArrayRandom frame = new ArrayRandom();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
    }
    }

Author

Message

rettigcd

Posted: 2003-12-19 8:02:00

Top

java-programmer, Configuring Tomcat to NOT use webapps directory currently my webapps directory is something like:

C:\java\netbeans3.5.1\tomcat406\webapps

This is where the Netbeans install put it. I want to move the
directory to something a little more convenient to work with like:

c:\webapps

All I can find in the Tomcat configuration file is:

<Host name="localhost" debug="0" appBase="webapps" unpackWARs="true">

but if I change appBase to anything like "c:\webapps" or "c:/webapps"
it doesn't work. Can anybody tell me how to move the appBase
directory outside of the Tomcat or Netbean directory?

Thanks in advance.
Dean

Eki Y. Baskoro

Posted: 2003-12-19 12:28:00

Top

java-programmer >> Configuring Tomcat to NOT use webapps directory G'Day Dean,

The tag should read:

<Host name="localhost" debug="0" appBase="c://webapps" unpackWARs="true">

Note the double forward slashes after the colon.

X_AWemner_X

Posted: 2003-12-29 21:10:00

Top

java-programmer >> Configuring Tomcat to NOT use webapps directory > C:\java\netbeans3.5.1\tomcat406\webapps
>
> This is where the Netbeans install put it. I want to move the
> directory to something a little more convenient to work with like:
>
> c:\webapps
>
> All I can find in the Tomcat configuration file is:
>
> <Host name="localhost" debug="0" appBase="webapps" unpackWARs="true">

This works in my Tomcat4.x installation. I put this file, mywebapp.xml, to
"{tomcat}/webapps" folder and it will use given docBase. Url is still
http://localhost:8080/mywebapp address.

<Context path="/mywebapp"
docBase="c:/projects/mywebappfolder"
debug="0"
reloadable="true"
crossContext="false">

<Logger className="org.apache.catalina.logger.FileLogger"
prefix="mywebapp_log." suffix=".txt"
timestamp="true"/>

</Context>

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    c = Color.LIGHT_GRAY;
    
    }
    
    public Color getColor()
    {
    return c;
    }
    
    public int getX()
    {
    return x;
    }
    
    public int getY()
    {
    return y;
    }
    
    public int getWidth()
    {
    return width;
    }
    
    }
- 12
  - JTable row selection (left and right mouse)Is it possible to be able to allow users to use either the left or the right
    mouse button to select one or more
    rows in a JTable, and upon the selection, be able to tell which mouse button
    they used to select the row(s)?
    
    I have 15 tables on the screen. The user needs to select one or more rows
    from one table (the source)
    and then the same number of rows in another table (the destination) and then
    I need to swap the row
    data from both tables. So, I need a way to differentiate between the
    selections on the source and the
    destination tables.
    
    Thank you.
- 13
  - butting components right up against each otherOn Fri, 27 Jun 2003 13:29:59 GMT, Roedy Green <email***@***.com> wrote:
    
    > On Fri, 27 Jun 2003 14:06:22 +0100, Daniel Dyer
    > <email***@***.com> wrote or quoted :
    >
    >> Sorry, I didn't mean ipadx/ipady, that won't help. You certainly
    >> shouldn't need to use absolute positioning though. Do you have any
    >> sample code to show us?
    > I just wanted to put a string of JTextFields with black backgrounds
    > right against each other so they look like one continuous field.
    
    Have you tried setting the borders on the text fields to null? Maybe it's
    the borders that make it look like there's a gap. Have you tried a
    different layout (maybe try GridLayout, just to see if it looks the same,
    it's much simpler so it will be easier to spot if you've done something
    wrong).
    
    Dan.
    
    --
    Daniel Dyer
    Empathy Software (http://www.empathysoftware.com)
    
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- 14
  - checkbox ploblem pls help!!i was new in java and i now completed add the checkbox in each node but the
    ploblem is i cant click the check box..
    what should i do in next step... pls help me thank you..
    following is my code
    
    fileTree.setCellRenderer(new DefaultTreeCellRenderer()
    {
    public Component getTreeCellRendererComponent(JTree tree, Object
    value,
    boolean sel, boolean expanded, boolean leaf, int row, boolean hasFocus)
    {
    super.getTreeCellRendererComponent(tree, value, sel, expanded, leaf,
    row, hasFocus);
    JCheckBox chk = new JCheckBox();
    chk.setContentAreaFilled(false);
    chk.setEnabled(true);
    //
    chk.setBorderPaintedFlat(true);
    chk.setOpaque(false);
    
    JPanel jPanel = new JPanel(new BorderLayout());
    jPanel.add(chk, BorderLayout.WEST);
    jPanel.add(this, BorderLayout.EAST);
    return jPanel;
    }
    
    --
    Message posted via http://www.javakb.com
- 15
  - PropertyChangeListener not recognizing changes to a putClientPropertyI must be missing out on something fundamental . . . why doesn't the
    following code ever register a PropertyChangeEvent?
    
    import java.beans.*;
    import javax.swing.*;
    import java.awt.*;
    import java.awt.event.*;
    import javax.swing.text.*;
    
    public class PropTest extends JFrame {
    private Boolean myBoolean = Boolean.FALSE;
    
    public PropTest() {
    super("PropertyChangeListener Test");
    JPanel panel = new JPanel();
    JButton button = new JButton(new BooleanAction("Button pushed"));
    button.setText("Push me!");
    panel.putClientProperty("myBoolean", myBoolean);
    panel.addPropertyChangeListener("myBoolean", new BooleanListener());
    panel.add(button);
    panel.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_SPACE, 0),
    "space");
    panel.getActionMap().put("space", new BooleanAction("Space
    pressed"));
    this.getContentPane().add(panel);
    }
    
    private class BooleanAction extends AbstractAction {
    String title;
    public BooleanAction(String title) {
    super();
    this.title = title;
    }
    
    public void actionPerformed(ActionEvent e) {
    System.out.println(title);
    System.out.println("Old value: " + myBoolean.toString());
    myBoolean = new Boolean(!myBoolean.booleanValue());
    System.out.println("New value: " + myBoolean.toString());
    }
    }
    
    private class BooleanListener implements PropertyChangeListener {
    public void propertyChange(PropertyChangeEvent e) {
    System.out.println("Hey, you changed my value!");
    }
    }
    
    public static void main(String[] args) {
    PropTest propTest = new PropTest();
    propTest.setResizable(false);
    propTest.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    propTest.pack();
    propTest.setVisible(true);
    }
    }