Profiling with visual VM

FileDestination.java

package primegenerator;

import java.io.BufferedOutputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;

//import org.springframework.stereotype.Component;

// @Component
public class FileDestination implements IPrimeDestination {

	private final String fileName;
	private Writer out;

	public FileDestination(String fileName) {
		this.fileName = fileName;
	}
	
	public void initBean() {
		out = null;
		try {
			out = new OutputStreamWriter(
					new BufferedOutputStream(new FileOutputStream(fileName, true), 8192));
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}

		System.out.println("Init called");
	}
	
	public void destroyBean() {

		try {
			if(out != null) {
				out.close();
			}
		} catch (IOException e) {
			e.printStackTrace();
		}

		System.out.println("Destroy called");			
	}

	@Override
	public void put(long prime) {
		try {
			out.write(Long.toString(prime) + "\n");
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}