diff --git a/vision/cloud-client/src/main/java/com/example/vision/Detect.java b/vision/cloud-client/src/main/java/com/example/vision/Detect.java
index f50f03e7c9f..9289d09d4f1 100644
--- a/vision/cloud-client/src/main/java/com/example/vision/Detect.java
+++ b/vision/cloud-client/src/main/java/com/example/vision/Detect.java
@@ -27,7 +27,6 @@
 import com.google.cloud.vision.v1.Feature.Type;
 import com.google.cloud.vision.v1.Image;
 import com.google.cloud.vision.v1.ImageAnnotatorClient;
-import com.google.cloud.vision.v1.ImageAnnotatorSettings;
 import com.google.cloud.vision.v1.ImageSource;
 import com.google.cloud.vision.v1.LocationInfo;
 import com.google.cloud.vision.v1.Page;
@@ -41,7 +40,6 @@
 import com.google.cloud.vision.v1.WebDetection.WebPage;
 import com.google.cloud.vision.v1.Word;
 import com.google.protobuf.ByteString;
-import org.threeten.bp.Duration;
 
 import java.io.FileInputStream;
 import java.io.IOException;
@@ -54,18 +52,20 @@ public class Detect {
   /**
    * Detects entities,sentiment and syntax in a document using the Natural Language API.
    *
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void main(String[] args) throws IOException {
+  public static void main(String[] args) throws Exception, IOException {
     argsHelper(args, System.out);
   }
 
   /**
    * Helper that handles the input passed to the program.
    *
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void argsHelper(String[] args, PrintStream out) throws IOException {
+  public static void argsHelper(String[] args, PrintStream out) throws Exception, IOException {
     if (args.length < 1) {
       out.println("Usage:");
       out.printf(
@@ -160,9 +160,10 @@ public Detect() {
    *
    * @param filePath The path to the file to perform face detection on.
    * @param out A {@link PrintStream} to write detected features to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectFaces(String filePath, PrintStream out) throws IOException {
+  public static void detectFaces(String filePath, PrintStream out) throws Exception, IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ByteString imgBytes = ByteString.readFrom(new FileInputStream(filePath));
@@ -173,24 +174,25 @@ public static void detectFaces(String filePath, PrintStream out) throws IOExcept
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      for (FaceAnnotation annotation : res.getFaceAnnotationsList()) {
-        out.printf(
-            "anger: %s\njoy: %s\nsurprise: %s\nposition: %s",
-            annotation.getAngerLikelihood(),
-            annotation.getJoyLikelihood(),
-            annotation.getSurpriseLikelihood(),
-            annotation.getBoundingPoly());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        for (FaceAnnotation annotation : res.getFaceAnnotationsList()) {
+          out.printf(
+              "anger: %s\njoy: %s\nsurprise: %s\nposition: %s",
+              annotation.getAngerLikelihood(),
+              annotation.getJoyLikelihood(),
+              annotation.getSurpriseLikelihood(),
+              annotation.getBoundingPoly());
+        }
       }
     }
   }
@@ -200,19 +202,13 @@ public static void detectFaces(String filePath, PrintStream out) throws IOExcept
    *
    * @param gcsPath The path to the remote file to perform face detection on.
    * @param out A {@link PrintStream} to write detected features to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectFacesGcs(String gcsPath, PrintStream out) throws IOException {
+  public static void detectFacesGcs(String gcsPath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
-    ImageAnnotatorSettings.Builder imageAnnotatorSettingsBuilder =
-        ImageAnnotatorSettings.defaultBuilder();
-    imageAnnotatorSettingsBuilder
-        .batchAnnotateImagesSettings()
-        .getRetrySettingsBuilder()
-        .setTotalTimeout(Duration.ofSeconds(30));
-    ImageAnnotatorSettings settings = imageAnnotatorSettingsBuilder.build();
-
     ImageSource imgSource = ImageSource.newBuilder().setGcsImageUri(gcsPath).build();
     Image img = Image.newBuilder().setSource(imgSource).build();
     Feature feat = Feature.newBuilder().setType(Type.FACE_DETECTION).build();
@@ -221,24 +217,25 @@ public static void detectFacesGcs(String gcsPath, PrintStream out) throws IOExce
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    ImageAnnotatorClient client = ImageAnnotatorClient.create(settings);
-    BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      for (FaceAnnotation annotation : res.getFaceAnnotationsList()) {
-        out.printf(
-            "anger: %s\njoy: %s\nsurprise: %s\nposition: %s",
-            annotation.getAngerLikelihood(),
-            annotation.getJoyLikelihood(),
-            annotation.getSurpriseLikelihood(),
-            annotation.getBoundingPoly());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        for (FaceAnnotation annotation : res.getFaceAnnotationsList()) {
+          out.printf(
+              "anger: %s\njoy: %s\nsurprise: %s\nposition: %s",
+              annotation.getAngerLikelihood(),
+              annotation.getJoyLikelihood(),
+              annotation.getSurpriseLikelihood(),
+              annotation.getBoundingPoly());
+        }
       }
     }
   }
@@ -248,9 +245,10 @@ public static void detectFacesGcs(String gcsPath, PrintStream out) throws IOExce
    *
    * @param filePath The path to the file to perform label detection on.
    * @param out A {@link PrintStream} to write detected labels to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectLabels(String filePath, PrintStream out) throws IOException {
+  public static void detectLabels(String filePath, PrintStream out) throws Exception, IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ByteString imgBytes = ByteString.readFrom(new FileInputStream(filePath));
@@ -261,19 +259,20 @@ public static void detectLabels(String filePath, PrintStream out) throws IOExcep
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      for (EntityAnnotation annotation : res.getLabelAnnotationsList()) {
-        annotation.getAllFields().forEach((k, v) -> out.printf("%s : %s\n", k, v.toString()));
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        for (EntityAnnotation annotation : res.getLabelAnnotationsList()) {
+          annotation.getAllFields().forEach((k, v) -> out.printf("%s : %s\n", k, v.toString()));
+        }
       }
     }
   }
@@ -283,9 +282,11 @@ public static void detectLabels(String filePath, PrintStream out) throws IOExcep
    *
    * @param gcsPath The path to the remote file to perform label detection on.
    * @param out A {@link PrintStream} to write detected features to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectLabelsGcs(String gcsPath, PrintStream out) throws IOException {
+  public static void detectLabelsGcs(String gcsPath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ImageSource imgSource = ImageSource.newBuilder().setGcsImageUri(gcsPath).build();
@@ -295,20 +296,21 @@ public static void detectLabelsGcs(String gcsPath, PrintStream out) throws IOExc
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      for (EntityAnnotation annotation : res.getLabelAnnotationsList()) {
-        annotation.getAllFields().forEach((k, v) ->
-            out.printf("%s : %s\n", k, v.toString()));
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        for (EntityAnnotation annotation : res.getLabelAnnotationsList()) {
+          annotation.getAllFields().forEach((k, v) ->
+              out.printf("%s : %s\n", k, v.toString()));
+        }
       }
     }
   }
@@ -318,9 +320,11 @@ public static void detectLabelsGcs(String gcsPath, PrintStream out) throws IOExc
    *
    * @param filePath The path to the file to perform landmark detection on.
    * @param out A {@link PrintStream} to write detected landmarks to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectLandmarks(String filePath, PrintStream out) throws IOException {
+  public static void detectLandmarks(String filePath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
     ByteString imgBytes = ByteString.readFrom(new FileInputStream(filePath));
 
@@ -330,20 +334,21 @@ public static void detectLandmarks(String filePath, PrintStream out) throws IOEx
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      for (EntityAnnotation annotation : res.getLandmarkAnnotationsList()) {
-        LocationInfo info = annotation.getLocationsList().listIterator().next();
-        out.printf("Landmark: %s\n %s\n", annotation.getDescription(), info.getLatLng());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        for (EntityAnnotation annotation : res.getLandmarkAnnotationsList()) {
+          LocationInfo info = annotation.getLocationsList().listIterator().next();
+          out.printf("Landmark: %s\n %s\n", annotation.getDescription(), info.getLatLng());
+        }
       }
     }
   }
@@ -353,9 +358,11 @@ public static void detectLandmarks(String filePath, PrintStream out) throws IOEx
    *
    * @param url The path to the file to perform landmark detection on.
    * @param out A {@link PrintStream} to write detected landmarks to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectLandmarksUrl(String url, PrintStream out) throws IOException {
+  public static void detectLandmarksUrl(String url, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ImageSource imgSource = ImageSource.newBuilder().setImageUri(url).build();
@@ -365,20 +372,21 @@ public static void detectLandmarksUrl(String url, PrintStream out) throws IOExce
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      for (EntityAnnotation annotation : res.getLandmarkAnnotationsList()) {
-        LocationInfo info = annotation.getLocationsList().listIterator().next();
-        out.printf("Landmark: %s\n %s\n", annotation.getDescription(), info.getLatLng());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        for (EntityAnnotation annotation : res.getLandmarkAnnotationsList()) {
+          LocationInfo info = annotation.getLocationsList().listIterator().next();
+          out.printf("Landmark: %s\n %s\n", annotation.getDescription(), info.getLatLng());
+        }
       }
     }
   }
@@ -388,9 +396,11 @@ public static void detectLandmarksUrl(String url, PrintStream out) throws IOExce
    *
    * @param gcsPath The path to the remote file to perform landmark detection on.
    * @param out A {@link PrintStream} to write detected landmarks to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectLandmarksGcs(String gcsPath, PrintStream out) throws IOException {
+  public static void detectLandmarksGcs(String gcsPath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ImageSource imgSource = ImageSource.newBuilder().setGcsImageUri(gcsPath).build();
@@ -400,20 +410,21 @@ public static void detectLandmarksGcs(String gcsPath, PrintStream out) throws IO
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      for (EntityAnnotation annotation : res.getLandmarkAnnotationsList()) {
-        LocationInfo info = annotation.getLocationsList().listIterator().next();
-        out.printf("Landmark: %s\n %s\n", annotation.getDescription(), info.getLatLng());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        for (EntityAnnotation annotation : res.getLandmarkAnnotationsList()) {
+          LocationInfo info = annotation.getLocationsList().listIterator().next();
+          out.printf("Landmark: %s\n %s\n", annotation.getDescription(), info.getLatLng());
+        }
       }
     }
   }
@@ -423,9 +434,10 @@ public static void detectLandmarksGcs(String gcsPath, PrintStream out) throws IO
    *
    * @param filePath The path to the local file to perform logo detection on.
    * @param out A {@link PrintStream} to write detected logos to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectLogos(String filePath, PrintStream out) throws IOException {
+  public static void detectLogos(String filePath, PrintStream out) throws Exception, IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ByteString imgBytes = ByteString.readFrom(new FileInputStream(filePath));
@@ -436,19 +448,20 @@ public static void detectLogos(String filePath, PrintStream out) throws IOExcept
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      for (EntityAnnotation annotation : res.getLogoAnnotationsList()) {
-        out.println(annotation.getDescription());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        for (EntityAnnotation annotation : res.getLogoAnnotationsList()) {
+          out.println(annotation.getDescription());
+        }
       }
     }
   }
@@ -458,9 +471,11 @@ public static void detectLogos(String filePath, PrintStream out) throws IOExcept
    *
    * @param gcsPath The path to the remote file to perform logo detection on.
    * @param out A {@link PrintStream} to write detected logos to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectLogosGcs(String gcsPath, PrintStream out) throws IOException {
+  public static void detectLogosGcs(String gcsPath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ImageSource imgSource = ImageSource.newBuilder().setGcsImageUri(gcsPath).build();
@@ -470,19 +485,20 @@ public static void detectLogosGcs(String gcsPath, PrintStream out) throws IOExce
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      for (EntityAnnotation annotation : res.getLogoAnnotationsList()) {
-        out.println(annotation.getDescription());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        for (EntityAnnotation annotation : res.getLogoAnnotationsList()) {
+          out.println(annotation.getDescription());
+        }
       }
     }
   }
@@ -492,9 +508,10 @@ public static void detectLogosGcs(String gcsPath, PrintStream out) throws IOExce
    *
    * @param filePath The path to the file to detect text in.
    * @param out A {@link PrintStream} to write the detected text to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectText(String filePath, PrintStream out) throws IOException {
+  public static void detectText(String filePath, PrintStream out) throws Exception, IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ByteString imgBytes = ByteString.readFrom(new FileInputStream(filePath));
@@ -505,20 +522,21 @@ public static void detectText(String filePath, PrintStream out) throws IOExcepti
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      for (EntityAnnotation annotation : res.getTextAnnotationsList()) {
-        out.printf("Text: %s\n", annotation.getDescription());
-        out.printf("Position : %s\n", annotation.getBoundingPoly());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        for (EntityAnnotation annotation : res.getTextAnnotationsList()) {
+          out.printf("Text: %s\n", annotation.getDescription());
+          out.printf("Position : %s\n", annotation.getBoundingPoly());
+        }
       }
     }
   }
@@ -528,9 +546,10 @@ public static void detectText(String filePath, PrintStream out) throws IOExcepti
    *
    * @param gcsPath The path to the remote file to detect text in.
    * @param out A {@link PrintStream} to write the detected text to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectTextGcs(String gcsPath, PrintStream out) throws IOException {
+  public static void detectTextGcs(String gcsPath, PrintStream out) throws Exception, IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ImageSource imgSource = ImageSource.newBuilder().setGcsImageUri(gcsPath).build();
@@ -540,20 +559,21 @@ public static void detectTextGcs(String gcsPath, PrintStream out) throws IOExcep
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      for (EntityAnnotation annotation : res.getTextAnnotationsList()) {
-        out.printf("Text: %s\n", annotation.getDescription());
-        out.printf("Position : %s\n", annotation.getBoundingPoly());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        for (EntityAnnotation annotation : res.getTextAnnotationsList()) {
+          out.printf("Text: %s\n", annotation.getDescription());
+          out.printf("Position : %s\n", annotation.getBoundingPoly());
+        }
       }
     }
   }
@@ -563,9 +583,11 @@ public static void detectTextGcs(String gcsPath, PrintStream out) throws IOExcep
    *
    * @param filePath The path to the file to detect properties.
    * @param out A {@link PrintStream} to write
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectProperties(String filePath, PrintStream out) throws IOException {
+  public static void detectProperties(String filePath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ByteString imgBytes = ByteString.readFrom(new FileInputStream(filePath));
@@ -576,25 +598,26 @@ public static void detectProperties(String filePath, PrintStream out) throws IOE
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      DominantColorsAnnotation colors = res.getImagePropertiesAnnotation().getDominantColors();
-      for (ColorInfo color : colors.getColorsList()) {
-        out.printf(
-            "fraction: %f\nr: %f, g: %f, b: %f\n",
-            color.getPixelFraction(),
-            color.getColor().getRed(),
-            color.getColor().getGreen(),
-            color.getColor().getBlue());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        DominantColorsAnnotation colors = res.getImagePropertiesAnnotation().getDominantColors();
+        for (ColorInfo color : colors.getColorsList()) {
+          out.printf(
+              "fraction: %f\nr: %f, g: %f, b: %f\n",
+              color.getPixelFraction(),
+              color.getColor().getRed(),
+              color.getColor().getGreen(),
+              color.getColor().getBlue());
+        }
       }
     }
   }
@@ -604,9 +627,11 @@ public static void detectProperties(String filePath, PrintStream out) throws IOE
    *
    * @param gcsPath The path to the remote file to detect properties on.
    * @param out A {@link PrintStream} to write
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectPropertiesGcs(String gcsPath, PrintStream out) throws IOException {
+  public static void detectPropertiesGcs(String gcsPath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ImageSource imgSource = ImageSource.newBuilder().setGcsImageUri(gcsPath).build();
@@ -616,25 +641,26 @@ public static void detectPropertiesGcs(String gcsPath, PrintStream out) throws I
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      DominantColorsAnnotation colors = res.getImagePropertiesAnnotation().getDominantColors();
-      for (ColorInfo color : colors.getColorsList()) {
-        out.printf(
-            "fraction: %f\nr: %f, g: %f, b: %f\n",
-            color.getPixelFraction(),
-            color.getColor().getRed(),
-            color.getColor().getGreen(),
-            color.getColor().getBlue());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        DominantColorsAnnotation colors = res.getImagePropertiesAnnotation().getDominantColors();
+        for (ColorInfo color : colors.getColorsList()) {
+          out.printf(
+              "fraction: %f\nr: %f, g: %f, b: %f\n",
+              color.getPixelFraction(),
+              color.getColor().getRed(),
+              color.getColor().getGreen(),
+              color.getColor().getBlue());
+        }
       }
     }
   }
@@ -644,9 +670,11 @@ public static void detectPropertiesGcs(String gcsPath, PrintStream out) throws I
    *
    * @param filePath The path to the local file used for safe search detection.
    * @param out A {@link PrintStream} to write the results to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectSafeSearch(String filePath, PrintStream out) throws IOException {
+  public static void detectSafeSearch(String filePath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ByteString imgBytes = ByteString.readFrom(new FileInputStream(filePath));
@@ -657,24 +685,25 @@ public static void detectSafeSearch(String filePath, PrintStream out) throws IOE
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      SafeSearchAnnotation annotation = res.getSafeSearchAnnotation();
-      out.printf(
-          "adult: %s\nmedical: %s\nspoofed: %s\nviolence: %s\n",
-          annotation.getAdult(),
-          annotation.getMedical(),
-          annotation.getSpoof(),
-          annotation.getViolence());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        SafeSearchAnnotation annotation = res.getSafeSearchAnnotation();
+        out.printf(
+            "adult: %s\nmedical: %s\nspoofed: %s\nviolence: %s\n",
+            annotation.getAdult(),
+            annotation.getMedical(),
+            annotation.getSpoof(),
+            annotation.getViolence());
+      }
     }
   }
 
@@ -683,9 +712,11 @@ public static void detectSafeSearch(String filePath, PrintStream out) throws IOE
    *
    * @param gcsPath The path to the remote file to detect safe-search on.
    * @param out A {@link PrintStream} to write the results to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectSafeSearchGcs(String gcsPath, PrintStream out) throws IOException {
+  public static void detectSafeSearchGcs(String gcsPath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ImageSource imgSource = ImageSource.newBuilder().setGcsImageUri(gcsPath).build();
@@ -695,24 +726,25 @@ public static void detectSafeSearchGcs(String gcsPath, PrintStream out) throws I
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      SafeSearchAnnotation annotation = res.getSafeSearchAnnotation();
-      out.printf(
-          "adult: %s\nmedical: %s\nspoofed: %s\nviolence: %s\n",
-          annotation.getAdult(),
-          annotation.getMedical(),
-          annotation.getSpoof(),
-          annotation.getViolence());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        SafeSearchAnnotation annotation = res.getSafeSearchAnnotation();
+        out.printf(
+            "adult: %s\nmedical: %s\nspoofed: %s\nviolence: %s\n",
+            annotation.getAdult(),
+            annotation.getMedical(),
+            annotation.getSpoof(),
+            annotation.getViolence());
+      }
     }
   }
 
@@ -721,9 +753,11 @@ public static void detectSafeSearchGcs(String gcsPath, PrintStream out) throws I
    *
    * @param filePath The path to the local file used for web annotation detection.
    * @param out A {@link PrintStream} to write the results to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectWebDetections(String filePath, PrintStream out) throws IOException {
+  public static void detectWebDetections(String filePath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ByteString imgBytes = ByteString.readFrom(new FileInputStream(filePath));
@@ -734,37 +768,38 @@ public static void detectWebDetections(String filePath, PrintStream out) throws
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // Search the web for usages of the image. You could use these signals later
-      // for user input moderation or linking external references.
-      // For a full list of available annotations, see http://g.co/cloud/vision/docs
-      WebDetection annotation = res.getWebDetection();
-      out.println("Entity:Id:Score");
-      out.println("===============");
-      for (WebEntity entity : annotation.getWebEntitiesList()) {
-        out.println(entity.getDescription() + " : " + entity.getEntityId() + " : "
-            + entity.getScore());
-      }
-      out.println("\nPages with matching images: Score\n==");
-      for (WebPage page : annotation.getPagesWithMatchingImagesList()) {
-        out.println(page.getUrl() + " : " + page.getScore());
-      }
-      out.println("\nPages with partially matching images: Score\n==");
-      for (WebImage image : annotation.getPartialMatchingImagesList()) {
-        out.println(image.getUrl() + " : " + image.getScore());
-      }
-      out.println("\nPages with fully matching images: Score\n==");
-      for (WebImage image : annotation.getFullMatchingImagesList()) {
-        out.println(image.getUrl() + " : " + image.getScore());
+        // Search the web for usages of the image. You could use these signals later
+        // for user input moderation or linking external references.
+        // For a full list of available annotations, see http://g.co/cloud/vision/docs
+        WebDetection annotation = res.getWebDetection();
+        out.println("Entity:Id:Score");
+        out.println("===============");
+        for (WebEntity entity : annotation.getWebEntitiesList()) {
+          out.println(entity.getDescription() + " : " + entity.getEntityId() + " : "
+              + entity.getScore());
+        }
+        out.println("\nPages with matching images: Score\n==");
+        for (WebPage page : annotation.getPagesWithMatchingImagesList()) {
+          out.println(page.getUrl() + " : " + page.getScore());
+        }
+        out.println("\nPages with partially matching images: Score\n==");
+        for (WebImage image : annotation.getPartialMatchingImagesList()) {
+          out.println(image.getUrl() + " : " + image.getScore());
+        }
+        out.println("\nPages with fully matching images: Score\n==");
+        for (WebImage image : annotation.getFullMatchingImagesList()) {
+          out.println(image.getUrl() + " : " + image.getScore());
+        }
       }
     }
   }
@@ -774,9 +809,11 @@ public static void detectWebDetections(String filePath, PrintStream out) throws
    *
    * @param gcsPath The path to the remote file to detect safe-search on.
    * @param out A {@link PrintStream} to write the results to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectWebDetectionsGcs(String gcsPath, PrintStream out) throws IOException {
+  public static void detectWebDetectionsGcs(String gcsPath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ImageSource imgSource = ImageSource.newBuilder().setGcsImageUri(gcsPath).build();
@@ -786,37 +823,38 @@ public static void detectWebDetectionsGcs(String gcsPath, PrintStream out) throw
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // Search the web for usages of the image. You could use these signals later
-      // for user input moderation or linking external references.
-      // For a full list of available annotations, see http://g.co/cloud/vision/docs
-      WebDetection annotation = res.getWebDetection();
-      out.println("Entity:Id:Score");
-      out.println("===============");
-      for (WebEntity entity : annotation.getWebEntitiesList()) {
-        out.println(entity.getDescription() + " : " + entity.getEntityId() + " : "
-            + entity.getScore());
-      }
-      out.println("\nPages with matching images: Score\n==");
-      for (WebPage page : annotation.getPagesWithMatchingImagesList()) {
-        out.println(page.getUrl() + " : " + page.getScore());
-      }
-      out.println("\nPages with partially matching images: Score\n==");
-      for (WebImage image : annotation.getPartialMatchingImagesList()) {
-        out.println(image.getUrl() + " : " + image.getScore());
-      }
-      out.println("\nPages with fully matching images: Score\n==");
-      for (WebImage image : annotation.getFullMatchingImagesList()) {
-        out.println(image.getUrl() + " : " + image.getScore());
+        // Search the web for usages of the image. You could use these signals later
+        // for user input moderation or linking external references.
+        // For a full list of available annotations, see http://g.co/cloud/vision/docs
+        WebDetection annotation = res.getWebDetection();
+        out.println("Entity:Id:Score");
+        out.println("===============");
+        for (WebEntity entity : annotation.getWebEntitiesList()) {
+          out.println(entity.getDescription() + " : " + entity.getEntityId() + " : "
+              + entity.getScore());
+        }
+        out.println("\nPages with matching images: Score\n==");
+        for (WebPage page : annotation.getPagesWithMatchingImagesList()) {
+          out.println(page.getUrl() + " : " + page.getScore());
+        }
+        out.println("\nPages with partially matching images: Score\n==");
+        for (WebImage image : annotation.getPartialMatchingImagesList()) {
+          out.println(image.getUrl() + " : " + image.getScore());
+        }
+        out.println("\nPages with fully matching images: Score\n==");
+        for (WebImage image : annotation.getFullMatchingImagesList()) {
+          out.println(image.getUrl() + " : " + image.getScore());
+        }
       }
     }
   }
@@ -826,9 +864,11 @@ public static void detectWebDetectionsGcs(String gcsPath, PrintStream out) throw
    *
    * @param filePath The path to the local file used for web annotation detection.
    * @param out A {@link PrintStream} to write the results to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectCropHints(String filePath, PrintStream out) throws IOException {
+  public static void detectCropHints(String filePath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ByteString imgBytes = ByteString.readFrom(new FileInputStream(filePath));
@@ -839,20 +879,21 @@ public static void detectCropHints(String filePath, PrintStream out) throws IOEx
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      CropHintsAnnotation annotation = res.getCropHintsAnnotation();
-      for (CropHint hint : annotation.getCropHintsList()) {
-        out.println(hint.getBoundingPoly());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        CropHintsAnnotation annotation = res.getCropHintsAnnotation();
+        for (CropHint hint : annotation.getCropHintsList()) {
+          out.println(hint.getBoundingPoly());
+        }
       }
     }
   }
@@ -862,9 +903,11 @@ public static void detectCropHints(String filePath, PrintStream out) throws IOEx
    *
    * @param gcsPath The path to the remote file to detect safe-search on.
    * @param out A {@link PrintStream} to write the results to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectCropHintsGcs(String gcsPath, PrintStream out) throws IOException {
+  public static void detectCropHintsGcs(String gcsPath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ImageSource imgSource = ImageSource.newBuilder().setGcsImageUri(gcsPath).build();
@@ -874,20 +917,21 @@ public static void detectCropHintsGcs(String gcsPath, PrintStream out) throws IO
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      CropHintsAnnotation annotation = res.getCropHintsAnnotation();
-      for (CropHint hint : annotation.getCropHintsList()) {
-        out.println(hint.getBoundingPoly());
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        CropHintsAnnotation annotation = res.getCropHintsAnnotation();
+        for (CropHint hint : annotation.getCropHintsList()) {
+          out.println(hint.getBoundingPoly());
+        }
       }
     }
   }
@@ -897,9 +941,11 @@ public static void detectCropHintsGcs(String gcsPath, PrintStream out) throws IO
    *
    * @param filePath The path to the local file to detect document text on.
    * @param out A {@link PrintStream} to write the results to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectDocumentText(String filePath, PrintStream out) throws IOException {
+  public static void detectDocumentText(String filePath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ByteString imgBytes = ByteString.readFrom(new FileInputStream(filePath));
@@ -910,40 +956,42 @@ public static void detectDocumentText(String filePath, PrintStream out) throws I
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
+      client.close();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      TextAnnotation annotation = res.getFullTextAnnotation();
-      for (Page page: annotation.getPagesList()) {
-        String pageText = "";
-        for (Block block : page.getBlocksList()) {
-          String blockText = "";
-          for (Paragraph para : block.getParagraphsList()) {
-            String paraText = "";
-            for (Word word: para.getWordsList()) {
-              String wordText = "";
-              for (Symbol symbol: word.getSymbolsList()) {
-                wordText = wordText + symbol.getText();
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        TextAnnotation annotation = res.getFullTextAnnotation();
+        for (Page page: annotation.getPagesList()) {
+          String pageText = "";
+          for (Block block : page.getBlocksList()) {
+            String blockText = "";
+            for (Paragraph para : block.getParagraphsList()) {
+              String paraText = "";
+              for (Word word: para.getWordsList()) {
+                String wordText = "";
+                for (Symbol symbol: word.getSymbolsList()) {
+                  wordText = wordText + symbol.getText();
+                }
+                paraText = paraText + wordText;
               }
-              paraText = paraText + wordText;
+              // Output Example using Paragraph:
+              out.println("Paragraph: \n" + paraText);
+              out.println("Bounds: \n" + para.getBoundingBox() + "\n");
+              blockText = blockText + paraText;
             }
-            // Output Example using Paragraph:
-            out.println("Paragraph: \n" + paraText);
-            out.println("Bounds: \n" + para.getBoundingBox() + "\n");
-            blockText = blockText + paraText;
+            pageText = pageText + blockText;
           }
-          pageText = pageText + blockText;
         }
+        out.println(annotation.getText());
       }
-      out.println(annotation.getText());
     }
   }
 
@@ -952,9 +1000,11 @@ public static void detectDocumentText(String filePath, PrintStream out) throws I
    *
    * @param gcsPath The path to the remote file to detect document text on.
    * @param out A {@link PrintStream} to write the results to.
+   * @throws Exception on errors while closing the client.
    * @throws IOException on Input/Output errors.
    */
-  public static void detectDocumentTextGcs(String gcsPath, PrintStream out) throws IOException {
+  public static void detectDocumentTextGcs(String gcsPath, PrintStream out) throws Exception,
+      IOException {
     List<AnnotateImageRequest> requests = new ArrayList<>();
 
     ImageSource imgSource = ImageSource.newBuilder().setGcsImageUri(gcsPath).build();
@@ -964,39 +1014,41 @@ public static void detectDocumentTextGcs(String gcsPath, PrintStream out) throws
         AnnotateImageRequest.newBuilder().addFeatures(feat).setImage(img).build();
     requests.add(request);
 
-    BatchAnnotateImagesResponse response =
-        ImageAnnotatorClient.create().batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+    try (ImageAnnotatorClient client = ImageAnnotatorClient.create()) {
+      BatchAnnotateImagesResponse response = client.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
+      client.close();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
-      // For full list of available annotations, see http://g.co/cloud/vision/docs
-      TextAnnotation annotation = res.getFullTextAnnotation();
-      for (Page page: annotation.getPagesList()) {
-        String pageText = "";
-        for (Block block : page.getBlocksList()) {
-          String blockText = "";
-          for (Paragraph para : block.getParagraphsList()) {
-            String paraText = "";
-            for (Word word: para.getWordsList()) {
-              String wordText = "";
-              for (Symbol symbol: word.getSymbolsList()) {
-                wordText = wordText + symbol.getText();
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
+        // For full list of available annotations, see http://g.co/cloud/vision/docs
+        TextAnnotation annotation = res.getFullTextAnnotation();
+        for (Page page: annotation.getPagesList()) {
+          String pageText = "";
+          for (Block block : page.getBlocksList()) {
+            String blockText = "";
+            for (Paragraph para : block.getParagraphsList()) {
+              String paraText = "";
+              for (Word word: para.getWordsList()) {
+                String wordText = "";
+                for (Symbol symbol: word.getSymbolsList()) {
+                  wordText = wordText + symbol.getText();
+                }
+                paraText = paraText + wordText;
               }
-              paraText = paraText + wordText;
+              // Output Example using Paragraph:
+              out.println("Paragraph: \n" + paraText);
+              out.println("Bounds: \n" + para.getBoundingBox() + "\n");
+              blockText = blockText + paraText;
             }
-            // Output Example using Paragraph:
-            out.println("Paragraph: \n" + paraText);
-            out.println("Bounds: \n" + para.getBoundingBox() + "\n");
-            blockText = blockText + paraText;
+            pageText = pageText + blockText;
           }
-          pageText = pageText + blockText;
         }
+        out.println(annotation.getText());
       }
-      out.println(annotation.getText());
     }
   }
 }
diff --git a/vision/cloud-client/src/main/java/com/example/vision/QuickstartSample.java b/vision/cloud-client/src/main/java/com/example/vision/QuickstartSample.java
index 195b67f16a4..53e840c43e0 100644
--- a/vision/cloud-client/src/main/java/com/example/vision/QuickstartSample.java
+++ b/vision/cloud-client/src/main/java/com/example/vision/QuickstartSample.java
@@ -37,38 +37,40 @@
 public class QuickstartSample {
   public static void main(String... args) throws Exception {
     // Instantiates a client
-    ImageAnnotatorClient vision = ImageAnnotatorClient.create();
+    try (ImageAnnotatorClient vision = ImageAnnotatorClient.create()) {
 
-    // The path to the image file to annotate
-    String fileName = "./resources/wakeupcat.jpg";
+      // The path to the image file to annotate
+      String fileName = "./resources/wakeupcat.jpg";
 
-    // Reads the image file into memory
-    Path path = Paths.get(fileName);
-    byte[] data = Files.readAllBytes(path);
-    ByteString imgBytes = ByteString.copyFrom(data);
+      // Reads the image file into memory
+      Path path = Paths.get(fileName);
+      byte[] data = Files.readAllBytes(path);
+      ByteString imgBytes = ByteString.copyFrom(data);
 
-    // Builds the image annotation request
-    List<AnnotateImageRequest> requests = new ArrayList<>();
-    Image img = Image.newBuilder().setContent(imgBytes).build();
-    Feature feat = Feature.newBuilder().setType(Type.LABEL_DETECTION).build();
-    AnnotateImageRequest request = AnnotateImageRequest.newBuilder()
-        .addFeatures(feat)
-        .setImage(img)
-        .build();
-    requests.add(request);
+      // Builds the image annotation request
+      List<AnnotateImageRequest> requests = new ArrayList<>();
+      Image img = Image.newBuilder().setContent(imgBytes).build();
+      Feature feat = Feature.newBuilder().setType(Type.LABEL_DETECTION).build();
+      AnnotateImageRequest request = AnnotateImageRequest.newBuilder()
+          .addFeatures(feat)
+          .setImage(img)
+          .build();
+      requests.add(request);
 
-    // Performs label detection on the image file
-    BatchAnnotateImagesResponse response = vision.batchAnnotateImages(requests);
-    List<AnnotateImageResponse> responses = response.getResponsesList();
+      // Performs label detection on the image file
+      BatchAnnotateImagesResponse response = vision.batchAnnotateImages(requests);
+      List<AnnotateImageResponse> responses = response.getResponsesList();
 
-    for (AnnotateImageResponse res : responses) {
-      if (res.hasError()) {
-        System.out.printf("Error: %s\n", res.getError().getMessage());
-        return;
-      }
+      for (AnnotateImageResponse res : responses) {
+        if (res.hasError()) {
+          System.out.printf("Error: %s\n", res.getError().getMessage());
+          return;
+        }
 
-      for (EntityAnnotation annotation : res.getLabelAnnotationsList()) {
-        annotation.getAllFields().forEach((k, v)->System.out.printf("%s : %s\n", k, v.toString()));
+        for (EntityAnnotation annotation : res.getLabelAnnotationsList()) {
+          annotation.getAllFields().forEach((k, v)->
+              System.out.printf("%s : %s\n", k, v.toString()));
+        }
       }
     }
   }
diff --git a/vision/cloud-client/src/test/java/com/example/vision/DetectIT.java b/vision/cloud-client/src/test/java/com/example/vision/DetectIT.java
index 6315f92363b..656c62a8d8f 100644
--- a/vision/cloud-client/src/test/java/com/example/vision/DetectIT.java
+++ b/vision/cloud-client/src/test/java/com/example/vision/DetectIT.java
@@ -61,7 +61,7 @@ public void testFaces() throws Exception {
     String got = bout.toString();
     assertThat(got).contains("anger: POSSIBLE");
     assertThat(got).contains("joy: POSSIBLE");
-    assertThat(got).contains("surprise: UNLIKELY");
+    assertThat(got).contains("surprise: LIKELY");
   }
 
   @Test
@@ -74,7 +74,7 @@ public void testFacesGcs() throws Exception {
     String got = bout.toString();
     assertThat(got).contains("anger: POSSIBLE");
     assertThat(got).contains("joy: POSSIBLE");
-    assertThat(got).contains("surprise: UNLIKELY");
+    assertThat(got).contains("surprise: LIKELY");
   }
 
   @Test