Chmod / File permission when creating directory

Question

Hello,
I'm updating an existing website that is developed by someone else.
One of the scripts is used to upload files and is written in JSP (while all other pages are PHP). In this script, a directory is created using following code:
File uploadDir = new File(folder);
if (!uploadDir.exists()) {
uploadDir.mkdir();
This creates a folder with the following arguments: drwxr-xr-x (nummeric: 755).
This means that only the owner has write-permissions... In another script, the same directory must be used to store some more files. This script is written in PHP and can't access the folder to write.
How can I chmod / set permissions so the group can also write (775)? Using the first JSP-script...
Thanks in advance.
Greetz,
l:x
lx(at)lxit.be

Answer 1

There is no way in java to change the umask of mkdir because to do so is platform-specific.
Either have a separate daemon process look for directories and change permissions, change the default umask of the user the script executes as, or drop to a system call with Runtime.getRuntime and execute chmod yourself.
[this post written from a unix perspective: change terminonolgy as appropriate for windows]