/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import javax.swing.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		SwingWorker<Void, Void> worker = new SwingWorker<Void, Void>() {
    		@Override
    		protected Void doInBackground() throws Exception {
 
 
				//return null;
    		}
		};
	}
}

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