Folder-Comments

[Arne v.Irmer]

Hi,
with the command line program "zip" I can create a zip-File with annotated 
folders inside. I try to generate such a zip-File with the org.apache.tools.zip 
classes coming with ant.jar. 

Here is my small example program:

package org.example.zip;

import java.io.BufferedOutputStream;
import java.io.FileOutputStream;

import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;

public class ZipTest {
        public static void main (String argv[]) {
                try {
                        FileOutputStream dest = new 
FileOutputStream("/tmp/checkFolder.zip");
                        ZipOutputStream out = new ZipOutputStream(new 
BufferedOutputStream(dest));

                        ZipEntry folderEntry = new ZipEntry("TestFolder");
                        folderEntry.setComment("My Folder comment.");
                        out.putNextEntry(folderEntry);
                        out.closeEntry();
                        
                        ZipEntry fileEntry = new 
ZipEntry("TestFolder/TestFile.txt");
                        fileEntry.setComment("My File comment.");
                        out.putNextEntry(fileEntry);
                        out.write("Hallo Zip!".getBytes());
                        out.closeEntry();
                        
                        out.close();
                } catch(Exception e) {
                        e.printStackTrace();
                }
        }
}

On a first look with unzip everything looks nice:
Archive:  /tmp/checkFolder.zip
  Length     Date   Time    Name
 --------    ----   ----    ----
        0  09-22-09 15:09   TestFolder
My Folder comment.
       10  09-22-09 15:09   TestFolder/TestFile.txt
My File comment.
 --------                   -------
       10                   2 files

But the build in windows Zip always finds an empty file with the name of the 
folder and unzip has a problem to extract it:
unzip  /tmp/checkFolder.zip                                                     
  
Archive:  /tmp/checkFolder.zip                                                  
                     
  inflating: TestFolder                                                         
                     
checkdir error:  TestFolder exists but is not directory                         
                     
                 unable to process TestFolder/TestFile.txt.     

Is there a way to tell a ZipEntry that it is folder?
How can I write a commented folder to a zip file?

Yours
 Arne

smime.p7s
Description: S/MIME cryptographic signature