Exception while loading properties from an xml file

Question

Hi all,
I've got a problem while loading properties from an XML file:
java.lang.ClassCastException: org.apache.xerces.dom.DeferredCommentImpl cannot be cast to org.w3c.dom.Element
ERROR - Cannot load properties from the specified file <./conf/login.prop> java.lang.ClassCastException: org.apache.xerces.dom.DeferredCommentImpl cannot be cast to org.w3c.dom.Element
     at java.util.XMLUtils.importProperties(XMLUtils.java:97)
     at java.util.XMLUtils.load(XMLUtils.java:69)
     at java.util.Properties.loadFromXML(Properties.java:852)
     at g2.utility.HRPMProperties.<init>(HRPMProperties.java:78)
     at g2.utility.HRPMProperties.getInstance(HRPMProperties.java:94)
     at g2.gui.workers.ApplicationSwingWorker.<init>(ApplicationSwingWorker.java:36)
     at g2.main.Main.main(Main.java:37)but this code worked before, and I've got the xerces and xercesImpl packages in the classpath, anyone can give me an hint on how to fix the problem?

Answer 1

Here there's the code that instantiates the HRPMProperties object loading the property file:
public class HRPMProperties extends Properties {
     * A reference to myself.
    protected static HRPMProperties mySelf = null;
     * The property file to which load the configuration.
    protected static String propertyFile = "./conf/login.prop";
      * A set of static strings used as keys in the properties file.
     public final static String DATABASE_URL = "database_url";
     public final static String DATABASE_USERNAME = "database_username";
     public final static String DATABASE_PASSWORD = "database_password";
     public final static String REAL_USERNAME = "real_username";
     public final static String REAL_PASSWORD = "real_password";
     public final static String PHANTOM_LOGIN = "login_thru_phantom_user";
     public final static String AUTOCONNECT = "autoconnect";
     public final static String TRANSLATION_FILE = "translation_file";
     * Builds up an empty properties map.
    protected HRPMProperties(){
     super();
     this.reload();
     * Builds up the property map from the specified input file. <B> The file must be in XML format</B>.
     * In case of exception and/or problems reading from the specified file, an empty property map is returned.
     * @param fileName the path and the name of the file with the XML representation of the properties.
    protected HRPMProperties(String fileName){
     super();
     try{
         this.loadFromXML(new FileInputStream(fileName));        
     }catch(Exception e){
         Logger.error("Cannot load properties from the specified file <"+fileName+"> " + e);
         e.printStackTrace();
     * Provides an instance of the property class loaded from the default configuration file.
     * @return the property instance
    public static final HRPMProperties getInstance(){
     if( HRPMProperties.mySelf != null )
         return HRPMProperties.mySelf;
     else{
         HRPMProperties.mySelf = new HRPMProperties(HRPMProperties.propertyFile);
         return HRPMProperties.mySelf;
}The constructor is the one triggering the exception, so there's a problem loading the XML property file.