Urgent!!! Need your help!!!

Hi all.
Problem description:
Why the following code doesn't display the text/contents of the <LastName> node? I've been thinking about this problem for several hours and still can't figure it out. Please HELP!!!!!!!!!!!!!!!!!!! IT's urgent!!!!!! Many thanks!!!!
++++++++++++++++++++++++++++++++++++++++++++++++++
if (currentNode.getNodeName().equals("contact"))
System.out.println("******"+ currentNode.getFirstChild().getNodeName());
System.out.println("******"+ currentNode.getLastChild().getNodeValue());
+++++++++++++++++++++++++++++++++++++++++++++++++++
XML file:
<contacts>
<contact gender = "M">
<FirstName>John</FirstName>
<LastName>Black</LastName>
</contact>
</contacts>
The entire program:
// Fig. 8.16 : TraverseDOM.java
// Traverses DOM and prints various nodes.
import java.io.*;
import org.w3c.dom.*;
import org.xml.sax.*;
import javax.xml.parsers.*;
import com.sun.xml.tree.XmlDocument;
public class TraverseDOM {
private Document document;
public TraverseDOM( String file )
try {
// obtain the default parser
DocumentBuilderFactory factory =
DocumentBuilderFactory.newInstance();
//factory.setValidating( true );
DocumentBuilder builder = factory.newDocumentBuilder();
// set error handler for validation errors
builder.setErrorHandler( new MyErrorHandler() );
// obtain document object from XML document
document = builder.parse( new File( file ) );
processNode( document );
catch ( SAXParseException spe ) {
System.err.println(
"Parse error: " + spe.getMessage() );
System.exit( 1 );
catch ( SAXException se ) {
se.printStackTrace();
catch ( FileNotFoundException fne ) {
System.err.println( "File \'"
+ file + "\' not found. " );
System.exit( 1 );
catch ( Exception e ) {
e.printStackTrace();
public void processNode( Node currentNode )
switch ( currentNode.getNodeType() ) {
// process a Document node
case Node.DOCUMENT_NODE:
Document doc = ( Document ) currentNode;
System.out.println(
"Document node: " + doc.getNodeName() +
"\nRoot element: " +
doc.getDocumentElement().getNodeName() );
processChildNodes( doc.getChildNodes() );
break;
// process an Element node
case Node.ELEMENT_NODE:
System.out.println( "\nElement node: " +
currentNode.getNodeName() );
NamedNodeMap attributeNodes =
currentNode.getAttributes();
for ( int i = 0; i < attributeNodes.getLength(); i++){
Attr attribute = ( Attr ) attributeNodes.item( i );
System.out.println( "\tAttribute: " +
attribute.getNodeName() + " ; Value = " +
attribute.getNodeValue() );
               if (currentNode.getNodeName().equals("contact"))
                    System.out.println("******"+ currentNode.getFirstChild().getNodeName());
                    System.out.println("******"+ currentNode.getLastChild().getNodeValue());
processChildNodes( currentNode.getChildNodes() );
break;
// process a text node and a CDATA section
case Node.CDATA_SECTION_NODE:
case Node.TEXT_NODE:
Text text = ( Text ) currentNode;
if ( !text.getNodeValue().trim().equals( "" ) )
System.out.println( "\tText: " +
text.getNodeValue() );
break;
public void processChildNodes( NodeList children )
if ( children.getLength() != 0 )
for ( int i = 0; i < children.getLength(); i++)
processNode( children.item( i ) );
public static void main( String args[] )
if ( args.length < 1 ) {
System.err.println(
"Usage: java TraverseDOM <filename>" );
System.exit( 1 );
TraverseDOM traverseDOM = new TraverseDOM( args[ 0 ] );
}

First, thank you very much for the quick response.
However, when I typed in the following code:
+++++++++++++++++++++++++++++++++++++++++++++++++++++++
if (currentNode.getNodeName().equals("contact"))
System.out.println("______________________" + currentNode.getNodeName());
System.out.println("******"+ currentNode.getChildNodes().item(0).getNodeValue());
System.out.println("******"+ currentNode.getChildNodes().item(1).getNodeValue()); //getFirstChild().getNodeValue());
System.out.println("******"+ currentNode.getChildNodes().item(2).getNodeValue());
System.out.println("******"+ currentNode.getChildNodes().item(3).getNodeValue()); //getLastChild().getNodeValue());
System.out.println("******"+ currentNode.getChildNodes().item(4).getNodeValue());
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The output is like:
*****************null
*****************null
Question1: Why can't I see the Texts of FirstName and LastName?
Question2: How can I get rid of those whitespace nodes?
Many thanks!!!! Looking forward to your kind response.

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    * Light Development Playlist Editor
    * Copyright (C) 2004 Ulrich Hilger
    * This program is free software; you can redistribute it and/or
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    * as published by the Free Software Foundation; either version 2
    * of the License, or (at your option) any later version.
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    * but WITHOUT ANY WARRANTY; without even the implied warranty of
    * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    * GNU General Public License for more details.
    * You should have received a copy of the GNU General Public License
    * along with this program; if not, write to the Free Software
    * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
    package com.lightdev.app.playlisteditor.data;
    import com.lightdev.lib.util.InfoThread;
    import java.io.File;
    * A class to collect audio data from a given storage location.
    * <p>
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    * <p>See <a href="http://www.id3.org">http://www.id3.org</a> for details about
    * ID3 tags.</p>
    * @author Ulrich Hilger
    * @author Light Development
    * @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
    * @author <a href="mailto:[email protected]">[email protected]</a>
    * @author published under the terms and conditions of the
    *      GNU General Public License,
    *      for details see file gpl.txt in the distribution
    *      package of this software as well as any licensing notes
    *      inside this documentation
    * @version 1, October 13, 2004
    public class CollectionThread extends InfoThread {
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       * @param model AudioDataModel  the model to collect data to
      public void setModel(AudioDataModel model) {
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      public void setRootDirectory(File rootDir) {
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          workIsLeft = collect(rootDir.listFiles());
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      private void countElements(File[] files) {
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        while (i < files.length && getStatus() < STATUS_HALT_PENDING) {
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    * recursively read data into model
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    while(i < files.length && getStatus() < STATUS_HALT_PENDING) {
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    if(file.isDirectory()) {
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    filesProcessed++;
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    /** the directory to collect data from */
    private File rootDir;
    /** the data model to collect data to */
    private AudioDataModel model;
    /** the number of files this thread processed so far while it is running */
    private long filesProcessed = 0;
    This is class InfoThread
    * Light Development Java Library
    * Copyright (C) 2003, 2004 Ulrich Hilger
    * This program is free software; you can redistribute it and/or
    * modify it under the terms of the GNU General Public License
    * as published by the Free Software Foundation; either version 2
    * of the License, or (at your option) any later version.
    * This program is distributed in the hope that it will be useful,
    * but WITHOUT ANY WARRANTY; without even the implied warranty of
    * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    * GNU General Public License for more details.
    * You should have received a copy of the GNU General Public License
    * along with this program; if not, write to the Free Software
    * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
    package com.lightdev.lib.util;
    import java.util.Vector;
    import java.util.Enumeration;
    * Abstract class <code>InfoThread</class> implements a status and listener concept.
    * An <code>InfoThread</code> object actively informs all objects registered as listeners about
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    * thread does not require a polling mechanism to be monitored.
    * <p>
    * <code>InfoThread</code> implements the following working scheme
    * </p>
    * @author Ulrich Hilger
    * @author Light Development
    * @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
    * @author <a href="mailto:[email protected]">[email protected]</a>
    * @author published under the terms and conditions of the
    *      GNU General Public License,
    *      for details see file gpl.txt in the distribution
    *      package of this software
    * @version Version 1, October 13, 2004
    public abstract class InfoThread extends Thread {
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      public void setIdleMillis(long millis) {
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       * method of this thread. Calls method <code>prepareThread</code> before calling
       * <code>run</code>.
       * @see run
       * @see prepareThread
      public synchronized void start() {
        setStatus(STATUS_INITIALIZING);
        prepareThread();
        setStatus(STATUS_READY);
        super.start();
       * call method <code>start</code> instead of this method.
       * calling this method directly will lead to an exception
       * @see start
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          setStatus(STATUS_RUNNING);
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                setStatus(STATUS_WORK_COMPLETE);
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          // error: Thread is not ready to run
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       * <code>haltThread</code> to pause a thread with the possiblity to resume work later.
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       * halt this thread, i.e. pause working allowing to resume later
       * @see resumeThread
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        switch (status) {
          case STATUS_RUNNING:
            setStatus(STATUS_STOP_PENDING);
            break;
          case STATUS_HALT_PENDING:
            // exception: the thread already is about to halt
            break;
          case STATUS_STOP_PENDING:
            // exception: the thread already is about to stop
            break;
          default:
            // exception: a thread can not be halted, when it is not running
            break;
       * resume this thread, i.e. resume previously halted work
       * @see haltThread
      public void resumeThread() {
        if(status == STATUS_HALTED || status == STATUS_HALT_PENDING) {
          setStatus(STATUS_RUNNING);
        else {
          // exception: only halted threads or threads that are about to halt can be resumed
       * this is the method to prepare a thread to run. It is not implemented in this abstract
       * class. Subclasses of <code>InfoThread</code> can implement this method to do anything
       * that might be required to put their thread into STATUS_READY. This method is called
       * automatically by method <code>start</code>.  When implementing this method, it should
       * call method <code>fireThreadException</code> accordingly.
       * @see start
       * @see fireThreadException
      protected void prepareThread() {
        // does nothing in this abstract class but might be needed in subclasses
       * this is the main activity method of this object. It is not implemented in this abstract
       * class. Subclasses of <code>InfoThread</code> must implement this method to do something
       * meaningful. When implementing this method, it should call methods
       * <code>fireThreadProgress</code> and <code>fireThreadException</code> accordingly.
       * @return boolean true, if work is left, false if not
       * @see fireThreadProgress
       * @see fireTreadException
      protected abstract boolean work();
       * add an <code>InfoTreadListener</code> to this instance of <code>InfoThread</code>
       * @param l InfoThreadListener  the listener to add
       * @see removeInfoThreadListener
      public void addInfoThreadListener(InfoThreadListener l) {
        listeners.add(l);
       * remove an <code>InfoTreadListener</code> from this instance of <code>InfoThread</code>
       * @param l InfoThreadListener  the listener to remove
      public void removeInfoThreadListener(InfoThreadListener l) {
        listeners.remove(l);
       * notify all <code>InfoThreadListener</code>s of a status change
       * @param fromStatus int  the status tis thread had before the change
       * @param toStatus int  the status this thread has now
      protected void fireThreadStatusChanged(int fromStatus, int toStatus) {
        Enumeration e = listeners.elements();
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          Object l = e.nextElement();
          if(l instanceof InfoThreadListener) {
            ((InfoThreadListener) l).threadStatusChanged(this, fromStatus, toStatus);
       * notify all <code>InfoThreadListener</code>s of an exception in this thread
       * @param ex Exception  the exception that occurred
      protected void fireThreadException(Exception ex) {
        Enumeration e = listeners.elements();
        while(e.hasMoreElements()) {
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          if(l instanceof InfoThreadListener) {
            ((InfoThreadListener) l).threadException(this, ex);
       * notify all <code>InfoThreadListener</code>s of the progress of this thread
       * @param progressValue long  a value indicating the current thread progress
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          Object l = e.nextElement();
          if(l instanceof InfoThreadListener) {
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       * set the status of this thread and notify all listeners
       * @param newStatus int  the status this thread is to be changed to
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        status = newStatus;
        fireThreadStatusChanged(fromStatus, newStatus);
       * get the current status of this thread
       * @return int  the status
      public int getStatus() {
        return status;
       * cleanup before actual destruction.
      public void destroy() {
        //System.out.println("InfoThread.destroy");
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        super.destroy();
       * cleanup all references this thread maintains
      private void cleanup() {
        //System.out.println("InfoThread.cleanup");
        listeners.removeAllElements();
        listeners = null;
      /* ----------------------- class fields start ------------------------ */
      /** storage for the objects this thread notifies about status changes and progress */
      private Vector listeners = new Vector();
      /** indicator for the status of this thread */
      private int status = STATUS_NONE;
      /** maximum value for threadProgress */
      protected long maxValue = -1;
      /** the idle time inside one work cycle in milliseconds */
      protected long idleMillis = 1;
      /* ----------------------- class fields end -------------------------- */
      /* ----------------------- constants start --------------------------- */
      /** constant value indicating that no status has been set so far */
      public static final int STATUS_NONE = 0;
      /** constant value indicating that the thread is currently initializing */
      public static final int STATUS_INITIALIZING = 1;
      /** constant value indicating that the thread is ready to run */
      public static final int STATUS_READY = 2;
      /** constant value indicating that the thread is running */
      public static final int STATUS_RUNNING = 3;
      /** constant value indicating that the thread is about to halt */
      public static final int STATUS_HALT_PENDING = 4;
      /** constant value indicating that the thread is halted */
      public static final int STATUS_HALTED = 5;
      /** constant value indicating that the work of this thread is complete */
      public static final int STATUS_WORK_COMPLETE = 6;
      /** constant value indicating that the thread is about to stop */
      public static final int STATUS_STOP_PENDING = 7;
      /** constant value indicating that the thread is stopped */
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      /** constant value indicating that the thread is finished */
      public static final int STATUS_THREAD_FINISHED = 9;
      /* ----------------------- constants end --------------------------- */
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    * Light Development Java Library
    * Copyright (C) 2003, 2004 Ulrich Hilger
    * This program is free software; you can redistribute it and/or
    * modify it under the terms of the GNU General Public License
    * as published by the Free Software Foundation; either version 2
    * of the License, or (at your option) any later version.
    * This program is distributed in the hope that it will be useful,
    * but WITHOUT ANY WARRANTY; without even the implied warranty of
    * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    * GNU General Public License for more details.
    * You should have received a copy of the GNU General Public License
    * along with this program; if not, write to the Free Software
    * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
    package com.lightdev.lib.util;
    * An interface classes interested to receive events from objects
    * of class <code>InfoThread</code> need to implement.
    * @author Ulrich Hilger
    * @author Light Development
    * @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
    * @author <a href="mailto:[email protected]">[email protected]</a>
    * @author published under the terms and conditions of the
    *      GNU General Public License,
    *      for details see file gpl.txt in the distribution
    *      package of this software
    * @version Version 1, October 13, 2004
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       * method to receive a status change notification from a thread
       * @param thread InfoThread  the thread which status changed
       * @param fromStatus int  the status which the thread had before the change
       * @param toStatus int  the status which the thread has now
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       * method to receive a notification about the progress of a thread
       * @param thread InfoThread  the thread which notified about its progress
       * @param progressValue long  the value (e.g. 10 if 100 percent completed, 20 of 1 million files processed, etc.)
      public void threadProgress(InfoThread thread, long progressValue, long maxValue);
       * method to receive a notifiaction about the fact that an exception occurred in a thread
       * @param thread InfoThread  the thread for which an exception occurred
       * @param e Exception  the exception that occurred
      public void threadException(InfoThread thread, Exception e);
    }This is class AudioFileDescriptor
    * Light Development Java Library
    * Copyright (C) 2004 Ulrich Hilger
    * This program is free software; you can redistribute it and/or
    * modify it under the terms of the GNU General Public License
    * as published by the Free Software Foundation; either version 2
    * of the License, or (at your option) any later version.
    * This program is distributed in the hope that it will be useful,
    * but WITHOUT ANY WARRANTY; without even the implied warranty of
    * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    * GNU General Public License for more details.
    * You should have received a copy of the GNU General Public License
    * along with this program; if not, write to the Free Software
    * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
    package com.lightdev.lib.audio;
    import java.io.FileNotFoundException;
    import java.io.IOException;
    import java.io.RandomAccessFile;
    import java.io.Serializable;
    import java.text.DecimalFormat;
    * This class models characteristics of an audio file such as the absolute path
    * of the file, its tag contents (if any) and the play duration, etc.
    * <p>See <a href="http://www.id3.org">http://www.id3.org</a> for details about
    * ID3 tags.</p>
    * @author Ulrich Hilger
    * @author Light Development
    * @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
    * @author <a href="mailto:[email protected]">[email protected]</a>
    * @author published under the terms and conditions of the
    *      GNU General Public License,
    *      for details see file gpl.txt in the distribution
    *      package of this software
    * @version Version 1, October 13, 2004
    public class AudioFileDescriptor implements Serializable, Comparable {
      public AudioFileDescriptor(String absolutePath) throws FileNotFoundException, IOException {
        load(absolutePath);
      public boolean equals(Object o) {
        if(o != null && o instanceof AudioFileDescriptor) {
          return ((AudioFileDescriptor) o).getAbsolutePath().equalsIgnoreCase(this.getAbsolutePath());
        else {
          return false;
      public void load(String absolutePath) throws FileNotFoundException, IOException {
        this.absolutePath = absolutePath;
        RandomAccessFile rf = new RandomAccessFile(absolutePath, "r");
        if(id3v11Tag == null) {
          id3v11Tag = new ID3v11Tag(rf, false);
        else {
          id3v11Tag.readTag(rf, rf.length() - 128);
        rf.close();
      public String getAbsolutePath() {
        return absolutePath;
      public ID3v11Tag getID3v11Tag() {
        return id3v11Tag;
      public void setID3v11Tag(ID3v11Tag tag) {
        this.id3v11Tag = tag;
      public String toString() {
        DecimalFormat df = new DecimalFormat("00");
        return id3v11Tag.getArtist() + ", " + id3v11Tag.getAlbum() + " - " +
            df.format(id3v11Tag.getTrackNumber()) + " " + id3v11Tag.getTitle();
       * Compares this object with the specified object for order.
       * @param o the Object to be compared.
       * @return a negative integer, zero, or a positive integer as this object is less than, equal to,
       *   or greater than the specified object.
       * @todo Implement this java.lang.Comparable method
      public int compareTo(Object o) {
        return toString().compareTo(o.toString());
      private String absolutePath;
      private ID3v11Tag id3v11Tag;
      private transient long duration = -1;
      private transient int type = TYPE_UNKNOWN;
      public static final transient int TYPE_UNKNOWN = 0;
      public static final transient int TYPE_MP3 = 1;
    }This is class ID3V11Tag into which the data is actually stored
    * Light Development Java Library
    * Copyright (C) 2004 Ulrich Hilger
    * This program is free software; you can redistribute it and/or
    * modify it under the terms of the GNU General Public License
    * as published by the Free Software Foundation; either version 2
    * of the License, or (at your option) any later version.
    * This program is distributed in the hope that it will be useful,
    * but WITHOUT ANY WARRANTY; without even the implied warranty of
    * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    * GNU General Public License for more details.
    * You should have received a copy of the GNU General Public License
    * along with this program; if not, write to the Free Software
    * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
    package com.lightdev.lib.audio;
    import java.io.File;
    import java.io.RandomAccessFile;
    import java.io.IOException;
    import java.io.Serializable;
    import java.text.DecimalFormat;
    * This class is a very simple implementation of an ID3v11Tag. It models an ID3 tag
    * pretty much the same way as it is physically stored inside an audio file.
    * <p>See <a href="http://www.id3.org">http://www.id3.org</a> for details about
    * ID3 tags.</p>
    * @author Ulrich Hilger
    * @author Light Development
    * @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
    * @author <a href="mailto:[email protected]">[email protected]</a>
    * @author published under the terms and conditions of the
    *      GNU General Public License,
    *      for details see file gpl.txt in the distribution
    *      package of this software
    * @version Version 1, October 13, 2004
    public class ID3v11Tag implements Serializable, Comparable {
       * construct an ID3v11Tag and read tag content from a given file
       * <p>This constructor can be used for cases where a RandomAccessFile has already
       * been opened and will be closed elsewhere</p>
       * @param rf RandomAccessFile  the open file to read from
       * @param isAtTagStartPos boolean  true, if the file pointer is at the
       * position where the ID3 tag starts; when false, the pointer is positioned accordingly here
       * @throws IOException
      public ID3v11Tag(RandomAccessFile rf, boolean isAtTagStartPos) throws IOException {
        if(isAtTagStartPos) {
          readTag(rf);
        else {
          readTag(rf, rf.length() - 128);
       * construct an ID3v11Tag and read tag content from a file at a given location
       * <p>This constructor opens and closes the audio file for reading</p>
       * @param absolutePath String  the absolute path to the audio file to open
       * @throws IOException
      public ID3v11Tag(String absolutePath) throws IOException {
        RandomAccessFile rf = new RandomAccessFile(absolutePath, "r");
        readTag(rf, rf.length() - 128);
        rf.close();
       * construct an ID3v11Tag and read tag content from a given file
       * <p>This constructor opens and closes the audio file for reading</p>
       * @param audioFile File  the audio file to read from
       * @throws IOException
      public ID3v11Tag(File audioFile) throws IOException {
        this(audioFile.getAbsolutePath());
       * get a string representation of this object
       * @return String
      public String toString() {
        DecimalFormat df = new DecimalFormat("00");
        return getArtist() + ", " + getAlbum() + " - " + df.format(getTrackNumber()) + " " + getTitle();
       * position to file pointer and read the tag
       * @param rf RandomAccessFile  the file to read from
       * @param jumpPos long  the position to jump to (the tag start position)
       * @throws IOException
      public void readTag(RandomAccessFile rf, long jumpPos) throws IOException {
        rf.seek(jumpPos);
        readTag(rf);
       * read the tag from a given file, assuming the file pointer to be at the tag start position
       * @param rf RandomAccessFile  the file to read from
       * @throws IOException
      public void readTag(RandomAccessFile rf) throws IOException {
        rf.read(tagBuf);
        if(tag.equalsIgnoreCase(new String(tagBuf))) {
          rf.read(title);
          rf.read(artist);
          rf.read(album);
          rf.read(year);
          rf.read(comment);
          rf.read(trackNo);
          rf.read(genre);
      public String getTitle() {
        return new String(title).trim();
      public String getArtist() {
        return new String(artist).trim();
      public String getAlbum() {
        return new String(album).trim();
      public String getYear() {
        return new String(year).trim();
      public String getComment() {
        return new String(comment).trim();
      public int getGenreId() {
        try {
          int id = new Byte(genre[0]).intValue();
          if(id < GENRE_ID_MIN || id > GENRE_ID_MAX) {
            return GENRE_ID_OTHER;
          else {
            return id;
        catch(Exception ex) {
          return GENRE_ID_OTHER;
      public String getGenreName() {
        return genreNames[getGenreId()];
      public int getTrackNumber() {
        try {
          return (int) trackNo[0];
        catch(Exception e) {
          return 0;
       * Compares this object with the specified object for order.
       * @param o the Object to be compared.
       * @return a negative integer, zero, or a positive integer as this object is less than, equal to,
       *                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

    Hi Franck,
    thank you, mate. I did what you suggested (changed class attached) but that did not change the mentioned behaviour.
    The first run is approximately 75 seconds with Java option -Xms40m and approx. double without, the second run and all subsequent runs are only 2-3 seconds each (!!!) even when terminating and re-starting the application between thread runs.
    I'm pretty clueless about that, any more help on this anyone?
    Thanks a lot and best regards
    Ulrich
    PS: BTW, I forgot to post the class that is filled with data by class CollectionThread, so here it is
    * Light Development Playlist Editor
    * Copyright (C) 2004 Ulrich Hilger
    * This program is free software; you can redistribute it and/or
    * modify it under the terms of the GNU General Public License
    * as published by the Free Software Foundation; either version 2
    * of the License, or (at your option) any later version.
    * This program is distributed in the hope that it will be useful,
    * but WITHOUT ANY WARRANTY; without even the implied warranty of
    * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    * GNU General Public License for more details.
    * You should have received a copy of the GNU General Public License
    * along with this program; if not, write to the Free Software
    * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
    package com.lightdev.app.playlisteditor.data;
    import java.io.File;
    import com.lightdev.lib.audio.ID3v11Tag;
    import javax.sound.sampled.UnsupportedAudioFileException;
    import java.io.IOException;
    import java.io.Serializable;
    import com.lightdev.lib.audio.AudioFileDescriptor;
    import com.lightdev.lib.ui.SortListModel;
    import java.util.Iterator;
    * Storage model for audio data.
    * <p>
    * <code>AudioDataModel</code> can be used to store ID3 tag data collected from
    * a directory with audio files to perform queries and reports on the found data.
    * </p>
    * <p>See <a href="http://www.id3.org">http://www.id3.org</a> for details about
    * ID3 tags.</p>
    * @author Ulrich Hilger
    * @author Light Development
    * @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
    * @author <a href="mailto:[email protected]">[email protected]</a>
    * @author published under the terms and conditions of the
    *      GNU General Public License,
    *      for details see file gpl.txt in the distribution
    *      package of this software as well as any licensing notes
    *      inside this documentation
    * @version 1, October 15, 2004
    public class AudioDataModel extends SortListModel implements Serializable {
       * constructor
      public AudioDataModel() {
       * add an audio track from a given audio file
       * <p>This will attempt to read ID3 tag data from the file.</p>
       * @param audioFile File  the file to add audio data for
       * @throws IOException
      public void addTrack(File audioFile) throws IOException {
        AudioFileDescriptor afd = new AudioFileDescriptor(audioFile.getAbsolutePath());
        if (!data.contains(afd)) {
          data.add(afd);
       * get all tracks for agiven combination of genre name, artist name and album name. Any of
       * the parameters may be null or AudioDataModel.FILTER_ALL
       * <p>Ugly code, I know, but it simply hard codes all combinations of the the mentioned
       * parameters. Any more elegant implementations welcome.</p>
       * @param genreName String  a genre name to get tracks for
       * @param artistName String  an artist name to get tracks for
       * @param albumName String  an album name to get tracks for
       * @return SortListModel   the found tracks in a list model
      public SortListModel getTracks(String genreName, String artistName, String albumName) {
        SortListModel foundTracks = new SortListModel();
        Iterator e = data.iterator();
        while(e.hasNext()) {
          AudioFileDescriptor afd = (AudioFileDescriptor) e.next();
          ID3v11Tag tag = afd.getID3v11Tag();
          if(genreName == null || genreName.equalsIgnoreCase(FILTER_ALL)) {
            if(artistName == null || artistName.equalsIgnoreCase(FILTER_ALL)) {
              if (tag.getAlbum().equalsIgnoreCase(albumName))
                foundTracks.add(afd);
            else {
              if(albumName == null || albumName.equalsIgnoreCase(FILTER_ALL)) {
                if (tag.getArtist().equalsIgnoreCase(artistName))
                  foundTracks.add(afd);
              else {
                if (tag.getArtist().equalsIgnoreCase(artistName) &&
                    tag.getAlbum().equalsIgnoreCase(albumName))
                  foundTracks.add(afd);
          else {
            if(artistName == null || artistName.equalsIgnoreCase(FILTER_ALL)) {
              if(albumName == null || albumName.equalsIgnoreCase(FILTER_ALL)) {
                if (tag.getGenreName().equalsIgnoreCase(genreName))
                  foundTracks.add(afd);
              else {
                if (tag.getGenreName().equalsIgnoreCase(genreName) &&
                    tag.getAlbum().equalsIgnoreCase(albumName))
                  foundTracks.add(afd);
            else {
              if(albumName == null || albumName.equalsIgnoreCase(FILTER_ALL)) {
                if (tag.getGenreName().equalsIgnoreCase(genreName) &&
                    tag.getArtist().equalsIgnoreCase(artistName))
                  foundTracks.add(afd);
              else {
                if (tag.getGenreName().equalsIgnoreCase(genreName) &&
                    tag.getArtist().equalsIgnoreCase(artistName) &&
                    tag.getAlbum().equalsIgnoreCase(albumName))
                  foundTracks.add(afd);
        foundTracks.sort();
        return foundTracks;
       * list all artists in this model
       * @return SortListModel
      public SortListModel listArtists() {
        SortListModel artists = new SortListModel();
        artists.add(FILTER_ALL);
        Iterator e = data.iterator();
        while (e.hasNext()) {
          ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
          String artistName = tag.getArtist();
          if (artists.indexOf(artistName) < 0) {
            artists.add(artistName);
        artists.sort();
        return artists;
       * list all artists in this model having titles belonging to a given genre
       * @param genreName String  name of the genre artists are searched for
       * @return SortListModel
      public SortListModel listArtists(String genreName) {
        SortListModel artists = new SortListModel();
        artists.add(FILTER_ALL);
        Iterator e = data.iterator();
        while (e.hasNext()) {
          ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
          String artistName = tag.getArtist();
          String genre = tag.getGenreName();
          if (artists.indexOf(artistName) < 0 && genre.equalsIgnoreCase(genreName)) {
            artists.add(artistName);
        artists.sort();
        return artists;
       * list all genres in this model
       * @return SortListModel
      public SortListModel listGenres() {
        SortListModel genres = new SortListModel();
        genres.add(FILTER_ALL);
        Iterator e = data.iterator();
        while (e.hasNext()) {
          ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
          String genreName = tag.getGenreName();
          if (genres.indexOf(genreName) < 0) {
            genres.add(genreName);
        genres.sort();
        return genres;
       * list all albums in this model
       * @return SortListModel
      public SortListModel listAlbums() {
        SortListModel albums = new SortListModel();
        albums.add(FILTER_ALL);
        Iterator e = data.iterator();
        while (e.hasNext()) {
          ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
          String albumName = tag.getAlbum();
          if (albums.indexOf(albumName) < 0) {
            albums.add(albumName);
        albums.sort();
        return albums;
       * list all albums in this model having titles belonging to a given genre
       * @param genreName String  name of the genre albums are searched for
       * @return SortListModel
      public SortListModel listAlbums(String genreName) {
        SortListModel albums = new SortListModel();
        albums.add(FILTER_ALL);
        Iterator e = data.iterator();
        while (e.hasNext()) {
          ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
          String albumName = tag.getAlbum();
          String genre = tag.getGenreName();
          if (albums.indexOf(albumName) < 0 && genre.equalsIgnoreCase(genreName)) {
            albums.add(albumName);
        albums.sort();
        return albums;
       * list all albums in this model having titles belonging to a given genre and artist
       * @param genreName String  name of the genre albums are searched for
       * @param artistName String  name of the artist albums are searched for
       * @return SortListModel
      public SortListModel listAlbums(String genreName, String artistName) {
        SortListModel albums = new SortListModel();
        albums.add(FILTER_ALL);
        Iterator e = data.iterator();
        while (e.hasNext()) {
          ID3v11Tag tag = ((AudioFileDescriptor) e.next()).getID3v11Tag();
          String albumName = tag.getAlbum();
          String genre = tag.getGenreName();
          String artist = tag.getArtist();
          if(genreName == null || genreName.equalsIgnoreCase(FILTER_ALL)) {
            if (albums.indexOf(albumName) < 0 &&
                artist.equalsIgnoreCase(artistName))
              albums.add(albumName);
          else {
            if (albums.indexOf(albumName) < 0 &&
                genre.equalsIgnoreCase(genreName) &&
                artist.equalsIgnoreCase(artistName))
              albums.add(albumName);
        albums.sort();
        return albums;
       * get the number of audio tracks stored in this data model
       * @return int  the number of tracks
      public int getTrackCount() {
        return data.size();
      /** constant to select all items of a given part */
      public static final String FILTER_ALL = "    all";
    }...and here the changed CollectionThread now caching found File objects in a vector
    * Light Development Playlist Editor
    * Copyright (C) 2004 Ulrich Hilger
    * This program is free software; you can redistribute it and/or
    * modify it under the terms of the GNU General Public License
    * as published by the Free Software Foundation; either version 2
    * of the License, or (at your option) any later version.
    * This program is distributed in the hope that it will be useful,
    * but WITHOUT ANY WARRANTY; without even the implied warranty of
    * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    * GNU General Public License for more details.
    * You should have received a copy of the GNU General Public License
    * along with this program; if not, write to the Free Software
    * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
    package com.lightdev.app.playlisteditor.data;
    import com.lightdev.lib.util.InfoThread;
    import java.io.File;
    import java.util.Vector;
    import java.util.Enumeration;
    * A class to collect audio data from a given storage location.
    * <p>
    * <code>CollectionThread</code> uses ID3 tag information to gain data.
    * </p>
    * <p>See <a href="http://www.id3.org">http://www.id3.org</a> for details about
    * ID3 tags.</p>
    * @author Ulrich Hilger
    * @author Light Development
    * @author <a href="http://www.lightdev.com">http://www.lightdev.com</a>
    * @author <a href="mailto:[email protected]">[email protected]</a>
    * @author published under the terms and conditions of the
    *      GNU General Public License,
    *      for details see file gpl.txt in the distribution
    *      package of this software as well as any licensing notes
    *      inside this documentation
    * @version 1, October 13, 2004
    public class CollectionThread extends InfoThread {
       * constructor
       * @param model  AudioDataModel  the data model to collect data to
      public CollectionThread(AudioDataModel model) {
        this.model = model;
       * constructor, creates a new empty AudioDataModel
      public CollectionThread() {
        this(new AudioDataModel());
       * set the data model to collect data to
       * @param model AudioDataModel  the model to collect data to
      public void setModel(AudioDataModel model) {
        this.model = model;
       * get the data model associated to this thread
       * @return AudioDataModel  the data model
      public AudioDataModel getModel() {
        return model;
       * set the directory to collect data from
       * @param rootDir File  the directory to collect data from
      public void setRootDirectory(File rootDir) {
        this.rootDir = rootDir;
       * this is the method to prepare a thread to run.
      protected void prepareThread() {
        maxValue = -1;
        filesProcessed = 0;
        innerCount = 0;
        fileList = new Vector();
       * do the actual work of this thread, i.e. iterate through a given directory
       * structure and collect audio data
       * @return boolean  true, if work is left
      protected boolean work() {
        boolean workIsLeft = true;
        if(getStatus() < STATUS_HALT_PENDING) {
          countElements(rootDir.listFiles());
        if(getStatus() < STATUS_HALT_PENDING) {
          workIsLeft = collect(); //collect(rootDir.listFiles());
          fileList.clear();
          fileList = null;
        return workIsLeft;
       * count the elements in a given file array including its subdirectories
       * @param files File[]
      private void countElements(File[] files) {
        int i = 0;
        while (i < files.length && getStatus() < STATUS_HALT_PENDING) {
          File file = files;
    if (file.isDirectory()) {
    countElements(file.listFiles());
    else {
    fileList.add(file);
    i++;
    maxValue++;
    * read data into model
    * @param files File[] the file array representing the content of a given directory
    * @return boolean true, if work is left
    private boolean collect(/*File[] files*/) {
    Enumeration files = fileList.elements();
    while(files.hasMoreElements() && getStatus() < STATUS_HALT_PENDING) {
    File file = (File) files.nextElement();
    try {
    model.addTrack(file);
    catch(Exception e) {
    fireThreadException(e);
    filesProcessed++;
    if(++innerCount > 99) {
    innerCount = 0;
    fireThreadProgress(filesProcessed);
    return false;
    int i = 0;
    while(i < files.length && getStatus() < STATUS_HALT_PENDING) {
    File file = files[i];
    if(file.isDirectory()) {
    collect(file.listFiles());
    else if(file.getName().toLowerCase().endsWith("mp3")) {
    try {
    model.addTrack(file);
    catch(Exception e) {
    fireThreadException(e);
    i++;
    filesProcessed++;
    fireThreadProgress(filesProcessed);
    return (i<files.length);
    /** the directory to collect data from */
    private File rootDir;
    /** the data model to collect data to */
    private AudioDataModel model;
    /** the number of files this thread processed so far while it is running */
    private long filesProcessed = 0;
    /** a list to temporary store found files */
    private Vector fileList;
    /** counter to determine when to fire progress messages */
    private int innerCount = 0;

  • I need your help with a decision to use iPhoto.  I have been a PC user since the mid 1980's and more recently have used ACDSee to manage my photo images and Photoshop to edit them.  I have used ProShow Gold to create slideshows.  I am comfortable with my

    I need your help with a decision to use iPhoto.  I have been a PC user since the mid 1980’s and more recently have used ACDSee to manage my photo images and Photoshop to edit them.  I have used ProShow Gold to create slideshows.  I am comfortable with my own folder and file naming conventions. I currently have over 23,000 images of which around 60% are scans going back 75 years.  Since I keep a copy of the originals, the storage requirements for over 46,000 images is huge.  180GB plus.
    I now have a Macbook Pro and will add an iMac when the new models arrive.  For my photos, I want to stay with Photoshop which also gives me the Bridge.  The only obvious reason to use iPhoto is to take advantage of Faces and the link to iMovie to make slideshows.  What am I missing and is using iPhoto worth the effort?
    If I choose to use iPhoto, I am not certain whether I need to load the originals and the edited versions. I suspect that just the latter is sufficient.  If I set PhotoShop as my external editor, I presume that iPhoto will keep track of all changes moving forward.  However, over 23,000 images in iPhoto makes me twitchy and they are appear hidden within iPhoto.  In the past, I have experienced syncing problems with, and database errors in, large databases.  If I break up the images into a number of projects, I loose the value of Faces reaching back over time.
    Some guidance and insight would be appreciated.  I have a number of Faces questions which I will save for later. 

    Bridge and Photoshop is a common file-based management system. (Not sure why you'd have used ACDSEE as well as Bridge.) In any event, it's on the way out. You won't be using it in 5 years time.
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    Packaging Web Modules(From J2ee tutorial for your information)
    A web module must be packaged into a WAR in certain deployment scenarios and whenever you want to distribute the web module. You package a web module into a WAR using the Application Server deploytool utility, by executing the jar command in a directory laid out in the format of a web module, or by using the asant utility. This tutorial allows you to use use either the first or the third approach. To build the hello1 application, follow these steps:
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    To package the application into a WAR named hello1.war using asant, use the following command:
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    To learn how to configure this web application, package the application using deploytool by following these steps:
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    Create a web application called hello1 by running the New Web Component wizard. Select FileNewWeb Component.
    In the New Web Component wizard:
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    In the WAR File field, enter <INSTALL>/j2eetutorial14/examples/web/hello1/hello1.war. The WAR Display Name field will show hello1.
    In the Context Root field, enter /hello1.
    Click Edit Contents to add the content files.
    In the Edit Contents dialog box, navigate to <INSTALL>/j2eetutorial14/examples/web/hello1/build/. Select duke.waving.gif, index.jsp, and response.jsp and click Add. Click OK.
    Click Next.
    Select the No Component radio button and click Next.
    Click Finish.
    Select FileSave.
    A sample hello1.war is provided in <INSTALL>/j2eetutorial14/examples/web/provided-wars/. To open this WAR with deploytool, follow these steps:
    Select FileOpen.
    Navigate to the provided-wars directory.
    Select the WAR.
    Click Open Module.
    I guess this step is for checking my system about setup information. I not sure how to change it.
    the result from execution of ansnt command in dos
    D:\J2ee\j2ee-1_4-doc-tutorial_7\j2eetutorial14\examples\web\hello1>asant create- war Buildfile: build.xml
    j2ee-home-test:
    BUILD FAILED D:\J2ee\j2ee-1_4-doc-tutorial_7\j2eetutorial14\examples\common\targets.xml:10: T he j2ee.home property is not properly set in <INSTALL>/j2eetutorial14/examples/c ommon/build.properties.
    Set the j2ee.home property to the location of your Application Server installati on.
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    j2ee.home = C:\\Sun\\AppServer
    or
    j2ee.home=C:/Sun/AppServer
    j2ee.home is currently set to:
    Total time: 0 seconds
    D:\J2ee\j2ee-1_4-doc-tutorial_7\j2eetutorial14\examples\web\hello1>
    I've installed J2ee sdk in C:\Sun\AppServer
    PATH: %J2EE_HOME%\bin;%JAVA_HOME%\bin;
    CLASSPATH: %J2EE_HOME%\lib\j2ee.jar;C:\Java\jre1.6.0_05\lib\ext\QTJava.zip;C:\oraclexe\app\oracle\product\10.2.0\server\jdbc\lib\ojdbc14.jar
    J2EE_HOME: C:\Sun\AppServer
    JAVA_HOME: C:\Sun\AppServer\jdk
    I've installed J2ee with administration 4848, HTTP: 8089 HTTP: 8090
    I guess this could refer the target.xml and build.properties. So, I've tried after changing some value, which is fit for my setup.
    but, still doesn't work.
    targets.xml
    <path id="classpath">
    <fileset dir="${j2ee.home}/lib">
    <include name="j2ee.jar"/>
    </fileset>
    </path>
    <target name="j2ee-home-test" >
    <!-- Test if j2ee.home is set properly by looking for j2ee.jar -->
    <available file="${j2ee.home}/lib/j2ee.jar" type="file" property="j2ee.jar.present" />
    <fail unless="j2ee.jar.present">
    The j2ee.home property is not properly set in <INSTALL>/j2eetutorial14/examples/common/build.properties.
    Set the j2ee.home property to the location of your Application Server installation.
    On Windows, you must escape any backslashes in the j2ee.home property with another backslash or use forward slashes as a path separator. So, if your Application Server installation is C:\Sun\AppServer, you must set j2ee.home as follows:
    j2ee.home = C:\\Sun\\AppServer
    or
    j2ee.home=C:/Sun/AppServer
    j2ee.home is currently set to: ${j2ee.home}
    </fail>
    </target>
    <target name="clean" >
    <delete dir="${build}" />
    <delete dir="${dist}" />
    <delete dir="${assemble}" />
    <delete file="${ear.name}" />
    <delete file="${war.name}" />
    <delete file="${war.file}" />
    <delete file="${client.jar.name}" />
    </target>
    <path id="db.classpath">
    <fileset dir="${db.root}/lib">
    <include name="*.jar"/>
    </fileset>
    </path>
    <target name="create-db_common"
    depends="init,start-db,delete-db"
    description="Create database tables and populate database." >
    <sql driver="${db.driver}"
    url="${db.url}"
    userid="${db.user}"
    password="${db.password}"
    classpathref="db.classpath"
    delimiter="${db.delimiter}"
    autocommit="false"
    onerror="abort" >
    <transaction src="${sql.script}"/>
    </sql>
    </target>
    <target name="delete-db"
    description="Deletes the database tables." >
    <sql driver="${db.driver}"
    url="${db.url}"
    userid="${db.user}"
    password="${db.password}"
    classpathref="db.classpath"
    delimiter="${db.delimiter}"
    autocommit="false"
    onerror="continue" >
    <transaction src="${delete.sql.script}"/>
    </sql>
    </target>
    <target name="ping-db"
    description="Checks to see if Derby is running." >
    <java classname="org.apache.derby.drda.NetworkServerControl"
    fork="yes"
    resultproperty="db.ping.result">
    <jvmarg line="${db.jvmargs}" />
    <arg line="ping" />
    <classpath refid="db.classpath" />
    </java>
    <condition property="db.running">
    <equals arg1="${db.ping.result}" arg2="0" />
    </condition>
    </target>
    <target name="start-db"
    unless="db.running"
    description="Starts the Derby databse server."
    depends="ping-db">
    <sun-appserv-admin
    explicitcommand="start-database" />
    </target>
    <target name="stop-db"
    description="Stops the Derby database server."
    depends="ping-db"
    if="db.running">
    <sun-appserv-admin
    explicitcommand="stop-database" />
    </target>
    <target name="admin_command_common">
    <echo message="Doing admin task ${admin.command}"/>
    <sun-appserv-admin
    command="${admin.command}"
    user="${admin.user}"
    passwordfile="${admin.password.file}"
    host="${admin.host}"
    port="${admin.port}"
    asinstalldir="${j2ee.home}" />
    </target>
    <target name="create-jdbc-resource_common">
    <antcall target="admin_command_common">
    <param name="admin.command"
    value="create-jdbc-resource
    --connectionpoolid ${conpool.name} ${jdbc.resource.name}" />
    </antcall>
    </target>
    <target name="delete-jdbc-resource_common">
    <antcall target="admin_command_common">
    <param name="admin.command"
    value="delete-jdbc-resource ${jdbc.resource.name}" />
    </antcall>
    </target>
    <target name="deploy-war">
    <antcall target="admin_command_common">
    <param name="admin.command"
    value="deploy ${war.file}" />
    </antcall>
    </target>
    <target name="undeploy-war">
    <antcall target="admin_command_common">
    <param name="admin.command"
    value="undeploy ${example}" />
    </antcall>
    </target>
    <property environment="env" />
    <target name="listprops"
    description="Displays values of some of the properties of this build file">
    <property file="../../common/admin-password.txt" />
    <echo message="Path information" />
    <echo message="j2ee.home = ${j2ee.home}" />
    <echo message="j2ee.tutorial.home = ${j2ee.tutorial.home}" />
    <echo message="env.Path = ${env.Path}" />
    <echo message="env.PATH = ${env.PATH}" />
    <echo message="" />
    <echo message="Classpath information" />
    <echo message="classpath = ${env.CLASSPATH}" />
    <echo message="" />
    <echo message="Admin information" />
    <echo message="admin.password = ${AS_ADMIN_PASSWORD}" />
    <echo message="admin.password.file = ${admin.password.file}" />
    <echo message="admin.host = ${admin.host}" />
    <echo message="admin.user = ${admin.user}" />
    <echo message="admin.port = ${admin.port}" />
    <echo message="https.port = ${https.port}" />
    <echo message="" />
    <echo message="Domain information" />
    <echo message="domain.resources = ${domain.resources}" />
    <echo message="domain.resources.port = ${domain.resources.port}" />
    <echo message="" />
    <echo message="Database information" />
    <echo message="db.root = ${db.root}" />
    <echo message="db.driver = ${db.driver}" />
    <echo message="db.host = ${db.host}" />
    <echo message="db.port = ${db.port}" />
    <echo message="db.sid = ${db.sid}" />
    <echo message="db.url = ${db.url}" />
    <echo message="db.user = ${db.user}" />
    <echo message="db.pwd = ${db.pwd}" />
    <echo message="url.prop = ${url.prop}" />
    <echo message="ds.class = ${ds.class}" />
    <echo message="db.jvmargs = ${db.jvmargs}" />
    </target>
    build.properties ����
    j2ee.home=
    j2ee.tutorial.home=
    asinstall.dir=${j2ee.home}
    admin.password.file=${j2ee.tutorial.home}/examples/common/admin-password.txt
    admin.host=localhost
    admin.user=admin
    admin.port=4848
    https.port=8181
    domain.resources="domain.resources"
    domain.resources.port=8080
    # Derby configuration settings
    db.delimiter=;
    db.root=${j2ee.home}/derby
    db.driver=org.apache.derby.jdbc.ClientDriver
    db.datasource=org.apache.derby.jdbc.ClientDataSource
    db.host=localhost
    db.port=1527
    db.sid=sun-appserv-samples
    db.url=jdbc:derby://${db.host}:${db.port}/${db.sid};create=true;
    db.user=APP
    db.pwd=APP
    db.jvmargs=-ms16m -mx32m
    Is there anyone who can tell me how to change it? I really need your help....
    Thank you in advance.

    ok,
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    C:\javaeetutorial5
    or
    D:\javaeetutorial5
    it makes things so simple.
    Secondly:
    set your jee tutorial home
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    C:/javaeetutorial5
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    C:\javaeetutorial5\examples\bp-project
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    edit the properties file as in:
    build.properties
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    javaee.tutorial.home=c:/javaeetutorial5
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    > I am using Labview to comunicate with ADAM modules, but I want to
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