FULL PRODUCT VERSION :
1.4.2_04

ADDITIONAL OS VERSION INFORMATION :
windows XP SP2 build 2600 version 5.1

A DESCRIPTION OF THE PROBLEM :
If I create a ZipFile Object on a File that was made with winzip and the winzip archiv *.zip had no entrys an ZipException is happend.
If the file contains Entry(s) there is no Exception



STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Create a new File of type winzip without any entrys
use the programm to list the contents
on this line of code it happens a ZipException f = new ZipFile(ff);


 /** Liest alle dir Entrys in ArrayList
   *
   * @param archiv String
   * @return ArrayList
   */
  private ArrayList getDirEntrys(String archiv)
  {
    ArrayList al = new ArrayList();
    ZipFile f = null;
    try
    {
      File ff = new File(archiv);
      f = new ZipFile(ff);

      Enumeration enum = f.entries();
      while (enum.hasMoreElements())
      {
        ZipEntry entry = (ZipEntry) enum.nextElement();
        if (entry.isDirectory())
        {
          al.add(entry.getName());
        }
      }
    }
    catch (IOException ioe)
    {
      ioe.printStackTrace();
    }
    finally
    {
      try
      {
        if (f != null)
        {
          f.close();
        }
      }
      catch (Exception ex)
      {
        ex.printStackTrace();
      }
    }
    System.out.println("Found " + al.size() + " Dir entrys");
    return al;
  }


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
no Exception
ACTUAL -
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)


ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
class ziptest
{
public static void main(String[] args)
{
new ziptest().getDirEntrys("test.zip");
}
  private ArrayList getDirEntrys(String archiv)
  {
    ArrayList al = new ArrayList();
    ZipFile f = null;
    try
    {
      File ff = new File(archiv);
      f = new ZipFile(ff);

      Enumeration enum1 = f.entries();
      while (enum1.hasMoreElements())
      {
        ZipEntry entry = (ZipEntry) enum1.nextElement();
        if (entry.isDirectory())
        {
          al.add(entry.getName());
        }
      }
    }
    catch (IOException ioe)
    {
      ioe.printStackTrace();
    }
    finally
    {
      try
      {
        if (f != null)
        {
          f.close();
        }
      }
      catch (Exception ex)
      {
        ex.printStackTrace();
      }
    }
    System.out.println("Found " + al.size() + " Dir entrys");
    return al;
  }
}
---------- END SOURCE ----------