feat(playwright): enhance logging and directory checks during Playwright initialization

- Added detailed logging for class loader switching and Playwright instance creation.
- Implemented checks for browser and temporary directories post-creation.
- Enhanced environment setup with additional logging for system properties related to Playwright.

Author: answeropensource

spring-ai-alibaba-jmanus/src/main/java/com/alibaba/cloud/ai/example/manus/tool/browser/SpringBootPlaywrightInitializer.java

@@ -46,8 +46,44 @@ public Playwright createPlaywright() {
 
 			try {
 				// Use this class's classloader (LaunchedClassLoader in Spring Boot)
-				Thread.currentThread().setContextClassLoader(this.getClass().getClassLoader());
-				return Playwright.create();
+				ClassLoader newCL = this.getClass().getClassLoader();
+				log.info("Switching to ClassLoader: {} [{}]", newCL.getClass().getSimpleName(), newCL.toString());
+				Thread.currentThread().setContextClassLoader(newCL);
+
+				log.info("About to call Playwright.create()...");
+				Playwright playwright = Playwright.create();
+				log.info("Playwright.create() successful! Instance: {}", playwright.getClass().getName());
+
+				// Check what was actually downloaded after creation
+				log.info("=== Post-Creation Directory Check ===");
+				String browserPath = System.getProperty("playwright.browsers.path");
+				String tempDir = System.getProperty("playwright.driver.tmpdir");
+
+				try {
+					Path browsersPath = Paths.get(browserPath);
+					if (Files.exists(browsersPath)) {
+						log.info("Browsers directory content:");
+						Files.walk(browsersPath, 2).forEach(path -> {
+							if (!path.equals(browsersPath)) {
+								log.info("  - {}", browsersPath.relativize(path));
+							}
+						});
+					}
+
+					// Check temp directory for playwright files
+					Path tempPath = Paths.get(tempDir);
+					if (Files.exists(tempPath)) {
+						Files.list(tempPath)
+							.filter(path -> path.getFileName().toString().contains("playwright"))
+							.forEach(path -> log.info("Temp playwright file: {}", path));
+					}
+				}
+				catch (Exception e) {
+					log.warn("Could not list post-creation directories: {}", e.getMessage());
+				}
+				log.info("=====================================");
+
+				return playwright;
 			}
 			finally {
 				// Always restore original class loader
@@ -64,6 +100,25 @@ public Playwright createPlaywright() {
 	 * Set up environment properties for Spring Boot
 	 */
 	private void setupSpringBootEnvironment() {
+		// Print detailed class loader information
+		ClassLoader currentCL = Thread.currentThread().getContextClassLoader();
+		ClassLoader thisCL = this.getClass().getClassLoader();
+
+		log.info("=== Playwright Class Loader Analysis ===");
+		log.info("Current thread context ClassLoader: {} [{}]", currentCL.getClass().getSimpleName(),
+				currentCL.toString());
+		log.info("This class ClassLoader: {} [{}]", thisCL.getClass().getSimpleName(), thisCL.toString());
+
+		// Print classpath information
+		String classPath = System.getProperty("java.class.path");
+		log.info("Java classpath: {}", classPath);
+
+		// Print loader path if exists
+		String loaderPath = System.getProperty("loader.path");
+		if (loaderPath != null) {
+			log.info("Spring Boot loader.path: {}", loaderPath);
+		}
+
 		// Set browser path
 		String browserPath = System.getProperty("user.home") + "/.cache/ms-playwright";
 		System.setProperty("playwright.browsers.path", browserPath);
@@ -85,6 +140,37 @@ private void setupSpringBootEnvironment() {
 		log.info("Spring Boot Playwright environment configured:");
 		log.info("  - Browser path: {}", browserPath);
 		log.info("  - Temp directory: {}", tempDir);
+
+		// Print all Playwright-related system properties
+		log.info("=== Playwright Runtime Directories ===");
+		log.info("  - playwright.browsers.path: {}", System.getProperty("playwright.browsers.path"));
+		log.info("  - playwright.driver.tmpdir: {}", System.getProperty("playwright.driver.tmpdir"));
+		log.info("  - PLAYWRIGHT_BROWSERS_PATH env: {}", System.getenv("PLAYWRIGHT_BROWSERS_PATH"));
+		log.info("  - PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: {}", System.getProperty("PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD"));
+
+		// Check actual directories
+		String[] checkPaths = { browserPath, browserPath + "/chromium-*", browserPath + "/firefox-*",
+				browserPath + "/webkit-*", tempDir + "/playwright-java-*" };
+
+		for (String path : checkPaths) {
+			try {
+				Path p = Paths.get(path.replace("*", ""));
+				if (Files.exists(p)) {
+					log.info("  ✓ Directory exists: {}", path);
+					if (Files.isDirectory(p)) {
+						Files.list(p).forEach(subPath -> log.info("    - {}", subPath.getFileName()));
+					}
+				}
+				else {
+					log.info("  ✗ Directory not found: {}", path);
+				}
+			}
+			catch (Exception e) {
+				log.warn("  ? Could not check path {}: {}", path, e.getMessage());
+			}
+		}
+
+		log.info("==========================================");
 	}
 
 	/**