🚀 go-pugleaf

Recompiling all of the .java files seems to have fixed it.

Thank god for the GUI tool's ability to compile everything in a project -- 
compiling one by one from the command line wasn't working.


"Scott" <scotthpowell@yahoo.com> wrote in message
news:4071b87d$1@newsgroups.borland.com...
> I am having a problem trying to use a third-party Java class library.
>
> Although it works from within a Java application, I am getting this error
> message when I try to use it from within Cold Fusion (Oh how I wish
Borland
> had bought Allaire!  May not be too late.).
>
> I am trying to instantiate the object with this line:
> <cfset mp3x = createObject("java", "de.vdheide.mp3.MP3File").init()>
>
> And I get this error message:
> java.lang.NoClassDefFoundError: de/vdheide/mp3/MP3File (wrong name:
> mp3/de/vdheide/mp3/MP3File)
>
> I want to point out there is a difference in the two references here.  The
> first says "de/vdheide" and the second says "mp3/de/vdheide". I have no
idea
> where that initial mp3 reference is coming from in the "wrong name"
clause.
>
> I've thought of these problems:
> * Mistake in my CF code?  But the same syntax works on other classes (see
> below).
> * Mistake in the MP3File library?  But it works in regular Java apps.
> * Mistake in the JVM's classpath?  So I wrote the ClassPathManager class
at
> the bottom of this and it confirms that the file is in the classpath (and
> that the CF syntax works).
> * A mistake in the MP3File import or package reference?  I included it
> below.
>
> Does anyone know what might cause this or how to resolve it?  I'm
especially
> confused by the fact that "wrong name" reference is different from the
> other.
>
> Thanks
> Scott
>
> /  **********************************************************************
> * Here is the heading for the MP3File definition.
> * The class works when I use it within a regular Java application.  It is
> downloaded from
> * http://www.vdheide.de/projects.html.
> *
> * I am putting this file here:
> * C:\Program Files\Java\_jvm\lib\de\vdheide\mp3\MP3File.class
> *
> * Note that de.vdheide.mp3 appears in both.
> * My classpath is set to include c:\program files\java\_jvm\lib
> * The Java class I've included below does list th MP3File in that
directory
> as available within
> * the JVM context for my app server.
> **********************************************************************  /
> package de.vdheide.mp3;
>
> import java.io.File;
> import java.io.IOException;
>
> public class MP3File extends java.io.File
> {
> /* stuff goes here */
> }
>
>
>
>
> /  **********************************************************************
> * Here is the ClassPathManager source code, which I compiled and put in
the
> classpath for CF.
> * Calling this class from within Cold Fusion, shows that the MP3File.class
> file is available in
> * the JVM's classpath.  Here is how to call it from within CF:
> * <cfset cpm = createObject("java", "ClassPathManager").init()>
> * <cfset classes = cpm.getClasses()>
> * <cfdump var="#classes#">
> *
> * Feel free to use this wherever you need to double check class
> availability.
> * It returns a string array to make it as easy as possible to use in
> different environments.
> **********************************************************************  /
> import java.io.*;
> import java.util.*;
> public class ClassPathManager {
>  private StringTokenizer classpath;
>  private TreeSet fileHashSet;
>
>
>  public ClassPathManager () {
>   super();
>   classpath  = new StringTokenizer(System.getProperty("java.class.path"),
> ";" );
>   fileHashSet  = new TreeSet();
>  }
>
>  public String[] getClasses() {
>   while (classpath.hasMoreTokens()){
>    listDirectory(new File(classpath.nextToken()));
>   }
>
>   String[] arrayOfFiles = new String[0];
>   arrayOfFiles = (String[]) fileHashSet.toArray(arrayOfFiles);
>   return arrayOfFiles;
>  }
>
>  public void listClasses(){
>   String[] fileNameArray = getClasses();
>
>   for (int x=0; x<fileNameArray.length; x++){
>    System.out.println(fileNameArray[x]);
>   }
>  }
>
>
>
>  public void listDirectory(File entry){
>   try {
>    if (!entry.exists()){
>     return;
>    }
>
>    if (entry.isFile()){
>     fileHashSet.add((String) entry.getCanonicalPath());
>    }else if (entry.isDirectory()){
>     String [] fileName = entry.list();
>     if (fileName == null) return;
>     for (int i = 0; ifileName.length; i++){
>      File item = new File(entry.getPath(), fileName[i]);
>      listDirectory(item);
>     }
>    }
>   } catch (IOException e) {
>    System.err.println ("Error: " + e.getMessage()  + " on " +
> entry.getName());
>   }
>  }
> }
>
>
>