public class OfficialTest {
	
    @Test    
    public void run1() throws MalformedURLException{           
    	new Controller(1);
    }
    
    @Test    
    public void run2() throws MalformedURLException{           
    	new Controller(2);
    }
    
    @Test    
    public void run3() throws MalformedURLException{           
    	new Controller(3);
    }
    
    @Test    
    public void run4() throws MalformedURLException{           
    	new Controller(4);
    }
    
    @AfterMethod
    public void close() {
    	System.out.println("closing");
    }
}

public class OfficialTest extends Thread{
	
    ArrayList<OfficialTest> testThreads = new ArrayList<>();
    
    int row;
    
    ArrayList<ThreadSafeMutableThreadParam> threads = new ArrayList<>();
	
    @Test    
    public void run1() throws MalformedURLException{      
    	for (int i = 0; i < 4; i++) {
    		threads.add(i, new ThreadSafeMutableThreadParam(i));
    	}
    	for (int i = 0; i < 4; i++) {
    		ThreadSafeMutableThreadParam t = threads.get(i);
    		t.run();
    	}
    }
    
}
class ThreadSafeMutableThreadParam implements Runnable {
    private int c;
    public ThreadSafeMutableThreadParam( int row ) {
        c = row;
    }
    public synchronized void setC( int c ) {
        this.c = c;
    }
    public synchronized int getC() {
        return c;
    }
    public void run() {
        try {
			new Controller( getC() );
		} catch (MalformedURLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
    }
}

public class ParallelTests 
{
	int row;
    
    @Parameters({"Row"})
    @BeforeMethod()
    public void setUp(int rowParam) throws MalformedURLException
    {           
       row = rowParam;
    }
    
    @Test
    public void RunTest() throws InterruptedException, MalformedURLException
    {
    	new Controller(row);
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd">
<suite thread-count="5" name="BlogSuite" parallel="tests">
<test name="Test 1">
<parameter name="Row" value="1"/>
    <classes>
      <class name="RealPackage.ParallelTests"/>
    </classes>
  </test> 
  <test name="Test 2">
<parameter name="Row" value="2"/>
    <classes>
      <class name="RealPackage.ParallelTests"/>
    </classes>
  </test> 
    <test name="Test 3">
<parameter name="Row" value="3"/>
    <classes>
      <class name="RealPackage.ParallelTests"/>
    </classes>
  </test> 
    <test name="Test 4">
<parameter name="Row" value="4"/>
    <classes>
      <class name="RealPackage.ParallelTests"/>
    </classes>
  </test> 
      <test name="Test 5">
<parameter name="Row" value="5"/>
    <classes>
      <class name="RealPackage.ParallelTests"/>
    </classes>
  </test>
  </suite>