Windows does not recognize Java created ZIP

[David Cheung]

I'm using java.util.zip to zip up some files, following some examples on the web (ZipOutputStream, ZipEntry, etc.)

    
FileOutputStream fos = new FileOutputStream(zipfilename);
ZipOutputStream out = new ZipOutputStream(fos);
FileInputStream fis = new FileInputStream(file); 
//create a new zip entry 
ZipEntry anEntry = new ZipEntry(file); 
//place the zip entry in the ZipOutputStream object 
zos.putNextEntry(anEntry); 
//now write the content of the file to the ZipOutputStream
while((bytesIn = fis.read(readBuffer)) != -1) 
{ 
   zos.write(readBuffer, 0, bytesIn); 
} 
//close the Stream 
fis.close();
zos.closeEntry();
zos.close();
fos.close();

Now, the created ZIP file appears to be valid, but when I use Windows to list the contents, it's empty! But when I use the third-party WinZip application, it sees the files without problem.

I've tried googling to see if this is a known problem, but I've come up with nothing, so I must be doing something wrong? Any help is appreciated!

[Ulf Dittmer]

so I must be doing something wrong?

Why? One might as well conclude that Windows is doing something wrong

[David Cheung]

Actually, it turned out I *WAS* doing something wrong

When I create the new ZipEntry(String name), I gave it the absolute path of the file. Apparently this is not valid (for Windows. anyway)