Error with running a jar, but not when i run it in eclispe?

Question

I built this program which works without any errors in eclispe, it is within a package called com.dceg.rules..
but when i packaged it into a jar, i get this error...
java.lang.ClassNotFoundException: com.dceg.rules (file:\C:\Source\dom\Validator Package\Validator.jar!\com\dceg\rules
) does not appear to be a valid package
What can be wrong?
Here is the manifest file
Manifest-Version: 1.0
Class-Path: jargs.jar log4j-1.2.13.jar dnsjava-2.0.2.jar com/dceg/rule
s/
Created-By: 1.5.0_06 (Sun Microsystems Inc.)
Main-Class: com.dceg.rules.Validator
Here is where the errors comes up from..
public void getClasses(String pckgname) throws ClassNotFoundException {
// This will hold a list of directories matching the pckgname. There may be more than one if a package is split over multiple jars/paths
ArrayList<File> directories = new ArrayList<File>();
try {
ClassLoader cld = Thread.currentThread().getContextClassLoader();
if (cld == null) {
logger.error(new ClassNotFoundException("Can't get class loader."));
String path = pckgname.replace('.', '/');
// Ask for all resources for the path
Enumeration<URL> resources = cld.getResources(path);
//System.out.println("r: "+resources.nextElement());
while (resources.hasMoreElements()) {
directories.add(new File(URLDecoder.decode(resources.nextElement().getPath(), "UTF-8")));
} catch (NullPointerException x) {
logger.error(new ClassNotFoundException(pckgname + " does not appear to be a valid package (Null pointer exception)"));
} catch (UnsupportedEncodingException encex) {
logger.error(new ClassNotFoundException(pckgname + " does not appear to be a valid package (Unsupported encoding)"));
} catch (IOException ioex) {
logger.error(new ClassNotFoundException("IOException was thrown when trying to get all resources for " + pckgname));
// For every directory identified capture all the .class files
for (File directory : directories) {
if (directory.exists()) {
// Get the list of the files contained in the package
String[] files = directory.list();
for (String file : files) {
// we are only interested in .class files
if (file.endsWith(".class")) {
// removes the .class extension
classes.put( file.substring(0, file.length() - 6) , (pckgname + '.' + file.substring(0, file.length() - 6)) );
} else {
**********throw new ClassNotFoundException(pckgname + " (" + directory.getPath() + ") does not appear to be a valid package");******* <-- error here
Message was edited by:
hamham3001

Answer 1

Heres the code again.. looks better now
public void getClasses(String pckgname) throws ClassNotFoundException {
        // This will hold a list of directories matching the pckgname. There may be more than one if a package is split over multiple jars/paths
          ArrayList<File> directories = new ArrayList<File>();
        try {
            ClassLoader cld = Thread.currentThread().getContextClassLoader();
            if (cld == null) {
                 logger.error(new ClassNotFoundException("Can't get class loader."));
            String path = pckgname.replace('.', '/');
            // Ask for all resources for the path
            Enumeration<URL> resources = cld.getResources(path);
            //System.out.println("r: "+resources.nextElement());
            while (resources.hasMoreElements()) {
                directories.add(new File(URLDecoder.decode(resources.nextElement().getPath(), "UTF-8")));
        } catch (NullPointerException x) {
             logger.error(new ClassNotFoundException(pckgname + " does not appear to be a valid package (Null pointer exception)"));
        } catch (UnsupportedEncodingException encex) {
             logger.error(new ClassNotFoundException(pckgname + " does not appear to be a valid package (Unsupported encoding)"));
        } catch (IOException ioex) {
             logger.error(new ClassNotFoundException("IOException was thrown when trying to get all resources for " + pckgname));
        // For every directory identified capture all the .class files
        for (File directory : directories) {
            if (directory.exists()) {
                // Get the list of the files contained in the package
                String[] files = directory.list();
                for (String file : files) {
                    // we are only interested in .class files
                    if (file.endsWith(".class")) {
                        // removes the .class extension
                        classes.put( file.substring(0, file.length() - 6) , (pckgname + '.' + file.substring(0, file.length() - 6)) );
            } else {
                throw new ClassNotFoundException(pckgname + " (" + directory.getPath() + ") does not appear to be a valid package");
    }