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copy files to a machine in local network in java with authentification

I've used Commons IO to write a program that copy files and other things. But I want to copy a file to a local ip address \\10.x.x.x, but the user doesn't have rights to do the copy, so I need to put an ID and password to access it. However I cannot find a way I can do that.
To move file I use :
FileUtils.moveFileToDirectory(fichier, destDir,true);
But my directory is something like \\10.x.x.x\files and only a few users can write in that directory so I have an ID & password that let you move files there. I want that even if the users don't have rights to move files to that directory my program can do it.

It is not really the way Windows security works. If you really want to do it that way, you will have to use Java Native Interface or Java Native Access, and manage to call the WNetAddConnection function from Mpr.dll (and do not forget to call WNetCancelConnection when done).
But you would have to store a password in your program, which is poor security practice.
The standard way to do that would be to start a service that would run under a user that has access to the desired directory, and have your program to communicate with it using whatever you want, the simplest way being probably TCP/IP. But unless you have special requirement for that I would not recommend to use Jave for those kinds of program.
A more Java alternative would be to start a Tomcat service on server machine running under a user having access to the directory. That way you just have to develop a standard Java Web Application able to upload files that would save the files to the proper directory. But it would be a traditionnal and portable Java application with no need for JNI nor JNA.
If cannot use a Tomcat and do not want to invest to much on it, you could split the program in pieces :
one client program that copies files on a directory (on server machine) with File creation rights for everybody - can decays to the copy utility if nothing more has to be done or can easily written in Java
one server program that will run on server machine under a user that has full write permissions on target directory. This one can also be easily written in Java
you can easily install the server program as a service on the server machine with sc and srvany according to this answer on ServerFault
If you use a client program, you could easily add a digital signature file with each copied file, but as I said above, it is poor security practice and add little if any security. At least the program should be executable and not readable, and the sources should be kept hidden. It is better to log the users that copied the file and ask them what happened is you find a problem.

How do I modify permissions to a shared folder with java?

I have the following problem:
I have a shared folder on my computer(Windows OS). I need a script in Java that when runned blocks the acces of network users to this folder so that I am allowed to modify its content.
Any suggestions or ideas?

If you are using Java 7 or later, you could use the java.nio.Files.setAttribute to set the DOS permissions using the relevant attributes from the DosFileAttributeView.
(You might also be able to do it using AclFileAttribute or PosixFileAttribute ... depending on the true nature of the folder you are attempting to modify.)
For Java 6 or earlier, you would need to resort to a 3rd-party library, JNI/JNA calls, or using Process to run an external command.

disable extraction from jar file in java

I want to make setup file for java swing application .
I am creating the setup by writing the script file and selecting the source file as jar and other necessary resources .
Now i want to make my jar disable to extraction .
Is there any way from which i make sure so that no can access the resources from my jar file either the class files or images etc.
thanks in advance

You can make it harder to get your resources, but you can't make it impossible. That's not a Java problem, by the way, but a general one of distributed software. In order to access your resources, your program (or in the case of Java the runtime environment) must be able to unpack them. Even when you encrypt them somehow, the program needs to include the decryption key and the decryption algorithms. A determined user can find these through reverse engineering, and use them to get your resources.

You could try obfuscating your codes.
This is the one I have used for obfuscate.
http://www.zelix.com/klassmaster/
You could find more tools for that.

You can use java webstart, your jars will be kept in cache so very its hard to access.
Java Web Start Guide

Keeping history of items without using a database in java

I have a small java utility application which performs tasks on remote computers. This app will provide user with a dropdown/combobox where they can enter ip address or hostnames for the computers they wish to connect to. It would be nice if the users could have a history of items/hosts they had connected in the dropdown.
I thought that I can create a file inside the distributable jar and use it to maintain the history. But writing to a file inside the jar seems to be impossible? The alternate approaches would be to use text files, databases etc located outside the jar. But this is not quite I would like to do as my utility app is only one file and I would like it to be completely independent of any external files. Also its not nice to have a text file stick around your jar file or create a text file each time your app is run.
Considering this case what options can I use? Are there any apis that can help in storing or keeping history?

Why don't you store this info with an hidden file in the user home directory? Many application do the same thing.
You can get the user home directory in this way
String userhome = System.getProperty("user.home");

I'd recommend keeping some .dat file somewhere associated with the JAR. Could be in same directory, or in the user's home (as #dash1e recommends) to avoid any permissions issues. I think you'll find that's the simplest solution.
Another option would be to use a Java-based database solution which could be bundled into your JAR (see Apache Derby, et al). Note that this would create files somewhere, but you wouldn't have to worry about the file-level management, as you'd just be interacting with it as a database.
One final option, if you really insist on avoiding having to maintain your own file, would be to use the Java Preferences API which provides an OS-agnostic way of storing data on the system in some obfuscated location. This is arguably a bit of a misuse of the goal of this API, but would accomplish what you're asking for.

Uploading the contents of a directory in JSP

I'm developing a JSP application, and I want to be able to upload the contents of a directory to the server. So the user will select the directory he wants to upload, and somehow all its contents will be uploaded.

Can't be done with regular HTML/Javascript, you have to use either Java or Flash.

There is no support for this in HTML (only uploading of a single file) so there is nothing you can do in your JSP. If you want to do this in java you will have to have something client side, like a signed Applet or a jar that the user downloads and runs.

Looks like it's time for a Framework! Struts2 can handle this type of jobs well and is easy to start with. Here you can take a look at a File Upload sample.

As said, there is no way to do this in JavaScript/HTML.
If you do not want to use a Java Applet (they are clunky and your users may not have Java installed), you can let people upload a zip file and extract it on the server (there is support for this in the Java standard API). Both Windows and Mac OS allow the clients to zip a folder by right-clicking.