java.lang.IllegalMonitorStateException (java selenium)

package main_files;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;

public class main_downloader {
	public static void main(String[] args) throws Exception {
		System.setProperty("webdriver.gecko.driver", "path\\geckodriver.exe");
		WebDriver driver = new FirefoxDriver();
		driver.wait(1);
		driver.get("https://www.google.com/");
		driver.wait(5);
		driver.quit();
	}
}

for some reason when I try to run this code it gives me this Error

1597445198205	geckodriver	INFO	Listening on 127.0.0.1:7834
1597445198836	mozrunner::runner	INFO	Running command: "C:\\Program Files\\Mozilla Firefox\\firefox.exe" "--marionette" "-foreground" "-no-remote" "-profile" "C:\\Users\\ahmed\\AppData\\Local\\Temp\\rust_mozprofileinTqzS"
JavaScript error: resource://gre/modules/XULStore.jsm, line 66: Error: Can't find profile directory.
console.error: SearchCache: "_readCacheFile: Error reading cache file:" (new Error("", "(unknown module)"))
1597445201342	Marionette	INFO	Listening on port 22663
1597445201445	Marionette	WARN	TLS certificate errors will be ignored for this session
Aug 15, 2020 1:46:41 AM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: W3C
Exception in thread "main" java.lang.IllegalMonitorStateException
	at java.lang.Object.wait(Native Method)
	at main_files.main_downloader.main(main_downloader.java:10)

i've tried some solutions but nothing worked !, could anyone help please !? Thx.

wait() function call must be called from Synchronized block to avoid this exception.
Do you want to sleep the main thread , if yes please use Thread.sleep() instead of wait() function call.