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Java Control Panel Proxy Settings - where are they stored?

I have... a situation. Imagine you have many, many PCs (Windows 7 to 8) that run a Java Application which is started by using a .jnlp. Now finally there has been a version-jump from java 6 to 8 (took way to much time), and suddenly this application wont start any more (can't parse first jnlp, javaws tells me).
To solve this we have to insert the correct proxy-setting inside java-control panel (wasn't necessary with the old version).
So... doing this by hand is a task that most users can't perform (sadly their level of knowledge isn't sufficient), but doing ths by myself at all PCs would take... uh... a really long time.
So we decided to create a little batch-file, that does perform all the stuff necessary (installing latest jre, clearing cache and so on) which just has to be runned once at every users PC. In Theory.
We were able to place all steps necessary in that .bat, except for setting the proxy at the java control panel. I wonder if this is possible at all. The javaws arguments don't contain such an argument, and I wasn't able to find a physical storage whatever inside the jre or the java cache.
And I can't use these -dHTTP.xxx.... flags for that .jnlp file I'm afraid, because that java webstart is the one that need to know the correct proxy-settings, not the application.
So is there a way to change the proxy setting you can access with the java control panel by some command line argument or something like this, enabling myself to complete this "all new" script?
Greetings, ConfusedMerlin

Java control panel settings are located in %userprofile%\AppData\LocalLow\Sun\Java\Deployment\deployment.properties
to add proxy you can use something like
(
(echo(deployment.proxy.bypass.local=true)
(echo(deployment.proxy.type=1)
(echo(deployment.proxy.http.host=10.10.10.10)
(echo(deployment.proxy.http.port=10)
)>>"%userprofile%\AppData\LocalLow\Sun\Java\Deployment\deployment.properties"
though if there are already set proxy you'll need to replace the data.

It is possible to control a java application from a delphi written application?

My problem is pretty simple i have an application written in java and i want to send commands to it ex ( click a button , send some key strokes , click a menu item ) from my application witch i will write in delphi. Is this concept even possible ?

I actually had to do this at the last place I worked, you can get around it with complex window events etc... as mentioned above but if you have access to the Java source simply write other access methods either that call a specific runtime that closes (i.e. trigger a public static void main(String[] args); via a native call or via the command line.
OR
Implement simple a simple message system between Java/Delphi over TCP/IP and send either XML or some simple string mappings (I think it took about an hour to set up Maps that could pass back and forth).
In my case we were simply handling reporting and talking to the database so it was pretty easy to work around without getting into a native call. Alternatively, there is(was) a port of the JNI for Delphi that worked pretty well with Delphi 7. I have no clue what runtime you're using but it might be an option.
Honestly, the TCP/IP method is probably the easiest. It doesn't take a lot to implement, it doesn't eat a lot of resources and it allows you to execute "myMenuItem.onClick()" pretty easily as a packet, you just have to expose the methods.
http://home.pacifier.com/~mmead/jni/delphi/

Well It depends on which Java GUI technology is used . If SWT or AWT is used , you can get handle of UI components, because these two toolkit uses native libararies.. On the other hand, if that java application GUI is created by beans of SWING, you can not get any handle. Because, swing toolkit is implemented by pure Java..

If the Java app can be modified, the Java Robot API (included in JRE 1.3 and newer) might be helpful. This would allow to control a Swing application which does not provide windows handles as Gursel wrote. Obviously there would be some IPC required, which could be implemented using sockets for example.

The short: YES, but depending on the Java application, it might be difficult and unreliable.
I'm not a Java guy so I don't know if this is the norm, but the one Java application I had to automate displayed a single dialog that only used 1 (one) window handle! It was made up of several edit boxes, buttons, what looked like combo-boxes, but those were not true Windows controls but widgets re-created by whatever GUI toolkit the original developer used. I wasn't able to use normal Windows messages to manipulate those because, as far as Windows was concerned, it was a single window.
Happily the only thing I had to do was click a single button. I used mouse_event to move the mouse over the expected area for the button and then again to click the button. It works, but manipulating input this way is both unreliable and fragile.

To clarify Daniel Chapman  and mjn  comments, find below a code extract showing Delphi controlling a Java Swing UI component (TextField) contained in a Jframe based on NetBeans ClientEditor sample.
Please notice, that this example does not use the Java source code or use TCP, XML, Windowing events handling technics or IPC, it's just simply Delphi code calling some Java code.
procedure TForm1.Button1Click(Sender: TObject);
begin
FJFrame := Tjavax_swing_JFrame.Create('Client Editor');
FClientEditor := Tclienteditor_ClientEditor.Create;
FJFrame.GetContentPane().Add(FClientEditor);
FJFrame.Pack;
FJFrame.SetVisible(True);
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
// Delphi setting a value in a Java Swing UI component
FclientEditor.FirstNameTextField.SetText('Delphi 1stName');
end;
The long type names are just as a matter of clarity for this example and can be shorter of course.Additionally there is no problem with JNI in this example.

Have you had a look at Java for Delphi?
It let's you call Java from Delphi exposing the Java types as Delphi types.

Check for keystroke

Im making an application that should see if your online or away.
So i need to somehow see when the user hit a key on the keyboard last time.
The application is running in the background and you can only access it from the trey.
Is this possible and if it is how would i check.
Best regards

I believe that what you're looking for can be done via a global keyboard hook, but that doesn't have direct support in the JVM. From Googling, it would appear that your only options are to write a C++ shim which you can use via JNI, or go via libffi with JRuby.

From what I've read here it is not possible to add KeyListener to the SystemTray. The only listener that is supported, is the PropertyChangedListener.
Furthermore from that question it seems to be possible on Windows but not on Linux and MacOS.

This is possible, but not using Java. You'll have to use JNI to access OS APIs that provide this information (and implent it differently for each OS).

Retrieving a Java object (List) from a Win32 application

I'm creating a Win32 application that controls another application which is coded in Java using AWT components. I figured that if I can retrieve the main List of the application and cast it with the JLIB library I'd be able to read its content.
First of all, am I right or I won't be able to get the real content of the List ? If I'm right I'd like to know how to achieve this since I didn't found any good spy software for Java and Spy++ only show a SunAwtComponent. Which I presume in the container for the whole Java application.
I'm not expecting someone to tell me how to do the whole thing but only a couple of direction would be really great since I've been looking for that for a while now.
Thanks for the replies !!!

Quite likely the Java application actually uses Swing, not AWT. Swing draws its own widgets on top of a single AWTComponent, so the list widget that you see doesn't exist from Windows point of view.
I assume you cannot modify this Java application so that it can be controlled over some reasonable API (e.g. JMX or REST)?
You can try running the JVM with JPDA debugging interface enabled. You can then use JPDA APIs to change data structures and directly call methods on any object in that program. Finding the right ones to call will be hard, though.
See http://download.oracle.com/javase/6/docs/jdk/api/jpda/jdi/index.html

Making a Windows Taskbar Jump-List in Java

I know the following things, and was wondering if they can be combined to make Java use jump-lists in Windows:
Windows displays Jump-Lists for supporting programs when a taskbar icon is right-clicked
C++, C#, F#, and VB support this natively (as shown here)
Java can import native capabilities using the JNA (as shown here)
Anybody have experience they can lend to help me create a jump-list for a Java app?
The J7Goodies library won't work, as it no longer exists.

The word "natively" is overstating the case a bit. WPF provides jump list support. That's not the same as C# providing it. (For Windows Forms people there's the Code Pack which is a set of managed wrappers.) And MFC provides jump list support which is also not the same as C++ providing it. Anyway, there are two things going on here. One is adding files you opened recently to that jumplist, which under some circumstances you can get for free. The other is adding arbitrary files (typically starting point templates etc) to the jumplist.
To add a file to the recent/frequent list, you call SHAddToRecentDocs, though you may not have to if, for example, you use the Common File Dialog control to open files, and/or the user double-clicks files to launch your app and open them (you have the file type registered.) Lots of folks suggest calling it anyway to be on the safe side. To add any old thing to the jumplist see http://msdn.microsoft.com/en-us/library/dd378402(v=VS.85).aspx.
How to call those from Java, I forget, but I hope they get you started.

There is a Java library providing the new Windows 7 features for Java. It's called J7Goodies by Strix Code. You can create your own jump lists with it.