problem in file enumeration

my code goes through some recursion, but is not proper.It does not show all the files in phone. I guess the problem may be in setting stack size. then how to set the stack size?my code is
[CODE]

public class dirMidlet extends MIDlet {
private static final String UP_DIRECTORY = "..";
private static final String MEGA_ROOT = "/";
private static final String SEP_STR = "/";
private static final char SEP = '/';
private String currDirName;
List browser= new List(currDirName, List.IMPLICIT);
public dirMidlet() {
// TODO Auto-generated constructor stub
currDirName = MEGA_ROOT;
}

protected void startApp() throws MIDletStateChangeException {
Enumeration e;
Vector v;
FileConnection currDir = null;
e = FileSystemRegistry.listRoots();
//List browser;
show(e,SEP_STR);
Display disp=Display.getDisplay(this);
disp.setCurrent(browser);
}
public void show(Enumeration e,String afileName)
{
try {
while (e.hasMoreElements())
{
FileConnection currDir = null;
String fileName = (String) e.nextElement();
System.out.println("inside while..."+fileName);
browser.append(fileName,null);
if (fileName.charAt(fileName.length() - 1) == SEP)
{
System.out.println("folderName"+afileName+fileName);
currDir = (FileConnection)Connector.open("file://localhost" +afileName+ fileName);
//Enumeration en;
show(currDir.list(),afileName+fileName);
}
else
System.out.println("inside else file name..."+fileName);
}
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
[/CODE]