File Management System based on JAVA EE - java

I run a small file server for my workgroup. People use SCP, programs like Cyberduck/FileZilla or mount via SSH to upload files.
I would like to add a 'web-interface' which can be used for:
file upload
view all files
adding comments to files
searching files and comments
It should be based on JAVA EE and running on Tomcat, because we do everything else in JAVA. There are many PHP file manager solutions like CKFinder. I am basically looking for a JAVA alternative with comments and search features.
Do you have any ideas?
Thanks and Cheers

You can use the document management system alfresco. It's based on java and can be run inside tomcat.

You can use Java Script's FileUpload Object for this
like.....
FileUpload object, FileUpload properties, accessKey, disabled, form, name, type, value, FileUpload methods - blur(), focus(), select(), handleEvent(), click() and event handlers - onblur, onchange and onfocus

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