Thread: Robot Invalid KeyCode from Constant

I am trying to create a Programm that pastes given text into a window that does not support ctrl v.
This works except for certain symols, which the keyPress method of the Robot class rejects, although they are defined by the -according to the KeyEvent api- correct constants.
This is an extacted segment of said code in a seperate eclipse project.

public class Test { //NOSONAR
	public static void main(String[] a) {
		int i = KeyEvent.getExtendedKeyCodeForChar('[');
		System.out.println(i); // prints 91
		System.out.println(KeyEvent.VK_OPEN_BRACKET); //prints 91
 
		try (final Scanner scanner = new Scanner(System.in);) {
			final Robot bot = new Robot();
			bot.setAutoDelay(30);
		    // here's the problem
			bot.keyPress(KeyEvent.VK_OPEN_BRACKET);
			bot.keyRelease(KeyEvent.VK_OPEN_BRACKET);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

running this code throws a Invalid key code Exception for me
Console Output:
91
91
java.lang.IllegalArgumentException: Invalid key code
at sun.awt.windows.WRobotPeer.keyPress(Native Method)
at java.awt.Robot.keyPress(Unknown Source)
at main.Test.main(Test.java:24)

throws a Invalid key code Exception

Please copy the full text of the error message and paste it here.
Also include the invalid value.

This is an extacted segment of said code in a seperate eclipse project.

Was that all the code?

This works except for certain symols

And has it been working before?

The code executes without an exception for me. It inserts a [ at the cursor's location in a document.