Update cookbook/copilot-sdk/java/recipe/AccessibilityReport.java

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: brunoborges

cookbook/copilot-sdk/java/recipe/AccessibilityReport.java

@@ -98,7 +98,8 @@ public static void main(String[] args) throws Exception {
 
             // Prompt user for test generation
             System.out.print("Would you like to generate Playwright accessibility tests? (y/n): ");
-            String generateTests = reader.readLine().trim();
+            String generateTestsLine = reader.readLine();
+            String generateTests = generateTestsLine == null ? "" : generateTestsLine.trim();
 
             if (generateTests.equalsIgnoreCase("y") || generateTests.equalsIgnoreCase("yes")) {
                 var testLatch = new CountDownLatch(1);