Apply suggestions from code review

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

Author: brunoborges

cookbook/copilot-sdk/README.md

@@ -97,7 +97,7 @@ go run <filename>.go
 ### Java
 
 ```bash
-cd java/cookbook/recipe
+cd java/recipe
 jbang <FileName>.java
 ```
 

cookbook/copilot-sdk/java/accessibility-report.md

@@ -27,7 +27,7 @@ npx --version
 ## Usage
 
 ```bash
-jbang AccessibilityReport.java
+jbang recipe/AccessibilityReport.java
 # Enter a URL when prompted
 ```
 

cookbook/copilot-sdk/java/multiple-sessions.md

@@ -5,7 +5,7 @@ Manage multiple independent conversations simultaneously.
 > **Runnable example:** [recipe/MultipleSessions.java](recipe/MultipleSessions.java)
 >
 > ```bash
-> jbang MultipleSessions.java
+> jbang recipe/MultipleSessions.java
 > ```
 
 ## Example scenario
@@ -21,35 +21,39 @@ You need to run multiple conversations in parallel, each with its own context an
 import com.github.copilot.sdk.*;
 import com.github.copilot.sdk.json.*;
 
-var client = new CopilotClient();
-client.start().get();
-
-// Create multiple independent sessions
-var session1 = client.createSession(new SessionConfig()
-    .setModel("gpt-5")
-    .setOnPermissionRequest(PermissionHandler.APPROVE_ALL)).get();
-var session2 = client.createSession(new SessionConfig()
-    .setModel("gpt-5")
-    .setOnPermissionRequest(PermissionHandler.APPROVE_ALL)).get();
-var session3 = client.createSession(new SessionConfig()
-    .setModel("claude-sonnet-4.5")
-    .setOnPermissionRequest(PermissionHandler.APPROVE_ALL)).get();
-
-// Each session maintains its own conversation history
-session1.sendAndWait(new MessageOptions().setPrompt("You are helping with a Python project")).get();
-session2.sendAndWait(new MessageOptions().setPrompt("You are helping with a TypeScript project")).get();
-session3.sendAndWait(new MessageOptions().setPrompt("You are helping with a Go project")).get();
-
-// Follow-up messages stay in their respective contexts
-session1.sendAndWait(new MessageOptions().setPrompt("How do I create a virtual environment?")).get();
-session2.sendAndWait(new MessageOptions().setPrompt("How do I set up tsconfig?")).get();
-session3.sendAndWait(new MessageOptions().setPrompt("How do I initialize a module?")).get();
-
-// Clean up all sessions
-session1.destroy().get();
-session2.destroy().get();
-session3.destroy().get();
-client.stop().get();
+public class MultipleSessions {
+    public static void main(String[] args) throws Exception {
+        var client = new CopilotClient();
+        client.start().get();
+
+        // Create multiple independent sessions
+        var session1 = client.createSession(new SessionConfig()
+            .setModel("gpt-5")
+            .setOnPermissionRequest(PermissionHandler.APPROVE_ALL)).get();
+        var session2 = client.createSession(new SessionConfig()
+            .setModel("gpt-5")
+            .setOnPermissionRequest(PermissionHandler.APPROVE_ALL)).get();
+        var session3 = client.createSession(new SessionConfig()
+            .setModel("claude-sonnet-4.5")
+            .setOnPermissionRequest(PermissionHandler.APPROVE_ALL)).get();
+
+        // Each session maintains its own conversation history
+        session1.sendAndWait(new MessageOptions().setPrompt("You are helping with a Python project")).get();
+        session2.sendAndWait(new MessageOptions().setPrompt("You are helping with a TypeScript project")).get();
+        session3.sendAndWait(new MessageOptions().setPrompt("You are helping with a Go project")).get();
+
+        // Follow-up messages stay in their respective contexts
+        session1.sendAndWait(new MessageOptions().setPrompt("How do I create a virtual environment?")).get();
+        session2.sendAndWait(new MessageOptions().setPrompt("How do I set up tsconfig?")).get();
+        session3.sendAndWait(new MessageOptions().setPrompt("How do I initialize a module?")).get();
+
+        // Clean up all sessions
+        session1.destroy().get();
+        session2.destroy().get();
+        session3.destroy().get();
+        client.stop().get();
+    }
+}
 ```
 
 ## Custom session IDs

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

@@ -22,7 +22,12 @@ public static void main(String[] args) throws Exception {
         var reader = new BufferedReader(new InputStreamReader(System.in));
 
         System.out.print("Enter URL to analyze: ");
-        String url = reader.readLine().trim();
+        String urlLine = reader.readLine();
+        if (urlLine == null) {
+            System.out.println("No URL provided. Exiting.");
+            return;
+        }
+        String url = urlLine.trim();
         if (url.isEmpty()) {
             System.out.println("No URL provided. Exiting.");
             return;

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

@@ -24,8 +24,14 @@ public static void main(String[] args) {
 
             session.close();
         } catch (ExecutionException ex) {
-            System.err.println("Error: " + ex.getCause().getMessage());
-            ex.getCause().printStackTrace();
+            Throwable cause = ex.getCause();
+            Throwable error = cause != null ? cause : ex;
+            System.err.println("Error: " + error.getMessage());
+            error.printStackTrace();
+        } catch (InterruptedException ex) {
+            Thread.currentThread().interrupt();
+            System.err.println("Interrupted: " + ex.getMessage());
+            ex.printStackTrace();
         } catch (Exception ex) {
             System.err.println("Error: " + ex.getMessage());
             ex.printStackTrace();

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

@@ -25,9 +25,9 @@ public static void main(String[] args) throws Exception {
             var s1 = f1.get(); var s2 = f2.get(); var s3 = f3.get();
 
             // Send a message to each session
-            System.out.println("S1: " + s1.sendAndWait(new MessageOptions().setPrompt("Explain Java records")).get().getMessage());
-            System.out.println("S2: " + s2.sendAndWait(new MessageOptions().setPrompt("Explain sealed classes")).get().getMessage());
-            System.out.println("S3: " + s3.sendAndWait(new MessageOptions().setPrompt("Explain pattern matching")).get().getMessage());
+            System.out.println("S1: " + s1.sendAndWait(new MessageOptions().setPrompt("Explain Java records")).get().getData().content());
+            System.out.println("S2: " + s2.sendAndWait(new MessageOptions().setPrompt("Explain sealed classes")).get().getData().content());
+            System.out.println("S3: " + s3.sendAndWait(new MessageOptions().setPrompt("Explain pattern matching")).get().getData().content());
 
             // Clean up
             s1.destroy().get(); s2.destroy().get(); s3.destroy().get();

cookbook/copilot-sdk/java/recipe/README.md

@@ -54,10 +54,8 @@ jbang PRVisualization.java github/copilot-sdk
 jbang ManagingLocalFiles.java /path/to/your/folder
 ```
 
-**Ralph Loop in planning mode:**
+**Ralph Loop with a prompt file:**
 
-```bash
-jbang RalphLoop.java plan 5
 ```
 
 ## Why JBang?