package com.vaadin.tests.performance;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
import com.vaadin.server.VaadinRequest;
import com.vaadin.tests.components.AbstractReindeerTestUI;
import com.vaadin.ui.Button;
import com.vaadin.ui.Label;
public class ThreadMemoryLeaksTest extends AbstractReindeerTestUI {
public static class Worker {
long value = 0;
private TimerTask task = new TimerTask() {
@Override
public void run() {
value++;
}
};
private final Timer timer = new Timer(true);
public Worker() {
timer.scheduleAtFixedRate(task, new Date(), 1000);
}
}
int workers = 0;
Label label;
@Override
protected void setup(VaadinRequest request) {
label = new Label(String.format("%d workers", workers));
addComponent(label);
addComponent(new Button("Add worker", new Button.ClickListener() {
@Override
public void buttonClick(Button.ClickEvent event) {
new Worker();
workers++;
label.setValue(String.format("%d workers", workers));
}
}));
}
@Override
protected String getTestDescription() {
return "Inherited ThreadLocals should not leak memory. Clicking the "
+ "button starts a new thread, after which memory consumption "
+ "can be checked with visualvm";
}
@Override
protected Integer getTicketNumber() {
return 12401;
}
}