fix: pass required env variables for new driver

driver/src/main/java/com/microsoft/playwright/impl/Driver.java

@@ -65,6 +65,25 @@ public Path driverPath() {
     return driverDir().resolve(cliFileName);
   }
 
+  public static void setRequiredEnvironmentVariables(ProcessBuilder pb) {
+    if (!pb.environment().containsKey("PW_CLI_TARGET_LANG")) {
+      pb.environment().put("PW_CLI_TARGET_LANG", "java");
+      pb.environment().put("PW_CLI_TARGET_LANG_VERSION", getMajorJavaVersion());
+    }
+  }
+
+  private static String getMajorJavaVersion() {
+    String version = System.getProperty("java.version");
+    if (version.startsWith("1.")) {
+      return version.substring(2, 3);
+    }
+    int dot = version.indexOf(".");
+    if (dot != -1) {
+      return version.substring(0, dot);
+    }
+    return version;
+  }
+
   private static Driver createDriver() throws Exception {
     String pathFromProperty = System.getProperty("playwright.cli.dir");
     if (pathFromProperty != null) {

playwright/src/main/java/com/microsoft/playwright/CLI.java

@@ -32,9 +32,7 @@ public static void main(String[] args) throws IOException, InterruptedException
     Path driver = Driver.ensureDriverInstalled(Collections.emptyMap());
     ProcessBuilder pb = new ProcessBuilder(driver.toString());
     pb.command().addAll(asList(args));
-    if (!pb.environment().containsKey("PW_CLI_TARGET_LANG")) {
-      pb.environment().put("PW_CLI_TARGET_LANG", "java");
-    }
+    Driver.setRequiredEnvironmentVariables(pb);
     String version = Playwright.class.getPackage().getImplementationVersion();
     if (version != null) {
       pb.environment().put("PW_CLI_DISPLAY_VERSION", version);

playwright/src/main/java/com/microsoft/playwright/impl/PlaywrightImpl.java

@@ -41,6 +41,7 @@ public static PlaywrightImpl create(CreateOptions options) {
       ProcessBuilder pb = new ProcessBuilder(driver.toString(), "run-driver");
       pb.redirectError(ProcessBuilder.Redirect.INHERIT);
       pb.environment().putAll(env);
+      Driver.setRequiredEnvironmentVariables(pb);
       Process p = pb.start();
       Connection connection = new Connection(new PipeTransport(p.getInputStream(), p.getOutputStream()));
       PlaywrightImpl result = connection.initializePlaywright();

playwright/src/test/java/com/microsoft/playwright/TestGlobalFetch.java

@@ -16,6 +16,25 @@
 import static org.junit.jupiter.api.Assertions.*;
 
 public class TestGlobalFetch extends TestBase {
+  @Test
+  void shouldHaveJavaInDefaultUesrAgent() throws ExecutionException, InterruptedException {
+    APIRequestContext request = playwright.request().newContext(new APIRequest.NewContextOptions());
+    Future<Server.Request> serverRequest = server.futureRequest("/empty.html");
+    APIResponse response = request.get(server.EMPTY_PAGE);
+    assertTrue(response.ok());
+    assertEquals(server.EMPTY_PAGE, response.url());
+    String version = System.getProperty("java.version");
+    if (version.startsWith("1.")) {
+      version = version.substring(2, 3);
+    } else {
+      int dot = version.indexOf(".");
+      if (dot != -1) {
+        version =  version.substring(0, dot);
+      }
+    }
+    assertTrue(serverRequest.get().headers.get("user-agent").get(0).contains("java/" + version));
+  }
+
   @Test
   void fetchShouldWork() {
     APIRequestContext request = playwright.request().newContext();

scripts/CLI_VERSION

@@ -1 +1 @@
-1.18.0-beta-1642115083000
+1.18.0-rc1