Is it possible to run dos-command's in java?

I have a small security problem. I have a dos-based
java prog. with login at the start og the program, but
I have problems hiding the password. I have managed to
hide the password when it is typed, but when you press
enter and get to the next menu, it is only to press
the up-key, and dos recover the last typed sentence.
(The password...) I have been able to fine the
dos-command "doskey /reinstall", which will clear the
memory, but I haven't been able to implemet this in my
java-prog.
I doubt that calling that in your program would help.
doskey is specific to the process. Running it by any means in java means that a new process will exist. You can verify this by open two console windows and running doskey in both. Nothing that you do in one will be reflected in the other.
I don't think your problem is a program problem. That means that it should not be solved by software but rather by management. For example you certainly wouldn't expect your program to make sure that someone wasn't standing behind the user when they typed their password right? And what if someone installs a key grabber on the computer? In that case any program, yours included, would have all the key presses logged to a file.
Alternatively if you might be able to solve it with one of the following...
- Recode the application to use a GUI. If there is no console the doskey isn't going to get anything.
- Write some JNI that bypasses the java input handling. If you handle the input directly then you can turn off echo
- Inspect the java source code for the VM. There might be a hidden method to turn echo off. Alternatively you can find the code responsible for this, modify them, and use them with the bootclass option to replace the ones in the VM. This solution is not distributable. And it might not be possible solely using java.

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