🎭 Playwright for Java

Playwright is a Java library to automate Chromium, Firefox and WebKit with a single API. Playwright is built to enable cross-browser web automation that is ever-green, capable, reliable and fast.

Esta es una versión modificada (fork) de Playwright-Java diseñada para ser completamente thread-safe. Permite levantar una única ventana del navegador (Browser) y abrir múltiples pestañas (BrowserContext / Page) de forma concurrente desde diferentes hilos sin que ocurran corrupciones de conexión ni los errores Object doesn't exist o fallos en __adopt__.

• Connection.java: Sincronización en la lectura y procesamiento de los mensajes del WebSocket (processOneMessage()) para asegurar el orden secuencial del protocolo. Los mapas de objetos y callbacks se migraron a ConcurrentHashMap, y los generadores de IDs pasaron a ser AtomicInteger.
• WaitableResult.java: Se añadieron modificadores volatile a variables clave de estado para garantizar la visibilidad inmediata en memoria entre hilos.
• ChannelOwner.java: Sincronización en la adopción y liberación de canales (adopt(), disposeChannelOwner()) y migración a ConcurrentHashMap.
• ListenerCollection.java: Modificado a ConcurrentHashMap con CopyOnWriteArrayList interno para evitar excepciones de modificación concurrente al registrar o remover listeners mientras se disparan eventos.

Puedes validar los tests de seguridad de hilos usando el script integrado:

./verify.sh

Agrega la dependencia apuntando a este repositorio de GitHub:

repositories {
    maven { url = uri("https://jitpack.io") }
    mavenCentral()
}

dependencies {
    // Reemplaza HASH_DEL_COMMIT con el commit de tu publicación
    implementation("com.github.lxluxo23:playwright-java:HASH_DEL_COMMIT")
}

<repositories>
    <repository>
        <id>jitpack</id>
        <url>https://jitpack.io</url>
    </repository>
</repositories>

<dependency>
    <groupId>com.github.lxluxo23</groupId>
    <artifactId>playwright-java</artifactId>
    <version>HASH_DEL_COMMIT</version>
</dependency>

https://playwright.dev/java/docs/intro

https://playwright.dev/java/docs/api/class-playwright

This code snippet navigates to Playwright homepage in Chromium, Firefox and WebKit, and saves 3 screenshots.

import com.microsoft.playwright.*;

import java.nio.file.Paths;
import java.util.Arrays;
import java.util.List;

public class PageScreenshot {
  public static void main(String[] args) {
    try (Playwright playwright = Playwright.create()) {
      List<BrowserType> browserTypes = Arrays.asList(
        playwright.chromium(),
        playwright.webkit(),
        playwright.firefox()
      );
      for (BrowserType browserType : browserTypes) {
        try (Browser browser = browserType.launch()) {
          BrowserContext context = browser.newContext();
          Page page = context.newPage();
          page.navigate("https://playwright.dev/");
          page.screenshot(new Page.ScreenshotOptions().setPath(Paths.get("screenshot-" + browserType.name() + ".png")));
        }
      }
    }
  }
}

More comfortable in another programming language? Playwright is also available in

• Node.js (JavaScript / TypeScript),
• Python.
• .NET,