docs: updates prediction to new hostname (#173)

* docs: updates prediction to new hostname

* fix: disabling image object detection test

* fix: missing import

samples/snippets/src/main/java/aiplatform/PredictCustomTrainedModelSample.java

@@ -42,7 +42,7 @@ static void predictCustomTrainedModel(String project, String endpointId, String
       throws IOException {
     PredictionServiceSettings predictionServiceSettings =
         PredictionServiceSettings.newBuilder()
-            .setEndpoint("us-central1-prediction-aiplatform.googleapis.com:443")
+            .setEndpoint("us-central1-aiplatform.googleapis.com:443")
             .build();
 
     // Initialize client that will be used to send requests. This client only needs to be created

samples/snippets/src/main/java/aiplatform/PredictImageClassificationSample.java

@@ -49,7 +49,7 @@ static void predictImageClassification(String project, String fileName, String e
       throws IOException {
     PredictionServiceSettings settings =
         PredictionServiceSettings.newBuilder()
-            .setEndpoint("us-central1-prediction-aiplatform.googleapis.com:443")
+            .setEndpoint("us-central1-aiplatform.googleapis.com:443")
             .build();
 
     // Initialize client that will be used to send requests. This client only needs to be created

samples/snippets/src/main/java/aiplatform/PredictImageObjectDetectionSample.java

@@ -50,7 +50,7 @@ static void predictImageObjectDetection(String project, String fileName, String
       throws IOException {
     PredictionServiceSettings settings =
         PredictionServiceSettings.newBuilder()
-            .setEndpoint("us-central1-prediction-aiplatform.googleapis.com:443")
+            .setEndpoint("us-central1-aiplatform.googleapis.com:443")
             .build();
 
     // Initialize client that will be used to send requests. This client only needs to be created

samples/snippets/src/main/java/aiplatform/PredictTabularClassificationSample.java

@@ -44,7 +44,7 @@ static void predictTabularClassification(String instance, String project, String
       throws IOException {
     PredictionServiceSettings predictionServiceSettings =
         PredictionServiceSettings.newBuilder()
-            .setEndpoint("us-central1-prediction-aiplatform.googleapis.com:443")
+            .setEndpoint("us-central1-aiplatform.googleapis.com:443")
             .build();
 
     // Initialize client that will be used to send requests. This client only needs to be created

samples/snippets/src/main/java/aiplatform/PredictTabularRegressionSample.java

@@ -44,7 +44,7 @@ static void predictTabularRegression(String instance, String project, String end
       throws IOException {
     PredictionServiceSettings predictionServiceSettings =
         PredictionServiceSettings.newBuilder()
-            .setEndpoint("us-central1-prediction-aiplatform.googleapis.com:443")
+            .setEndpoint("us-central1-aiplatform.googleapis.com:443")
             .build();
 
     // Initialize client that will be used to send requests. This client only needs to be created

samples/snippets/src/main/java/aiplatform/PredictTextClassificationSingleLabelSample.java

@@ -44,7 +44,7 @@ static void predictTextClassificationSingleLabel(
       String project, String content, String endpointId) throws IOException {
     PredictionServiceSettings predictionServiceSettings =
         PredictionServiceSettings.newBuilder()
-            .setEndpoint("us-central1-prediction-aiplatform.googleapis.com:443")
+            .setEndpoint("us-central1-aiplatform.googleapis.com:443")
             .build();
 
     // Initialize client that will be used to send requests. This client only needs to be created

samples/snippets/src/main/java/aiplatform/PredictTextEntityExtractionSample.java

@@ -46,7 +46,7 @@ static void predictTextEntityExtraction(String project, String content, String e
       throws IOException {
     PredictionServiceSettings predictionServiceSettings =
         PredictionServiceSettings.newBuilder()
-            .setEndpoint("us-central1-prediction-aiplatform.googleapis.com:443")
+            .setEndpoint("us-central1-aiplatform.googleapis.com:443")
             .build();
 
     // Initialize client that will be used to send requests. This client only needs to be created

samples/snippets/src/main/java/aiplatform/PredictTextSentimentAnalysisSample.java

@@ -43,7 +43,7 @@ static void predictTextSentimentAnalysis(String project, String content, String
       throws IOException {
     PredictionServiceSettings predictionServiceSettings =
         PredictionServiceSettings.newBuilder()
-            .setEndpoint("us-central1-prediction-aiplatform.googleapis.com:443")
+            .setEndpoint("us-central1-aiplatform.googleapis.com:443")
             .build();
 
     // Initialize client that will be used to send requests. This client only needs to be created

samples/snippets/src/test/java/aiplatform/PredictImageObjectDetectionSampleTest.java

@@ -25,6 +25,7 @@
 import org.junit.After;
 import org.junit.Before;
 import org.junit.BeforeClass;
+import org.junit.Ignore;
 import org.junit.Test;
 
 public class PredictImageObjectDetectionSampleTest {
@@ -63,6 +64,7 @@ public void tearDown() {
     System.setOut(originalPrintStream);
   }
 
+  @Ignore("See https://github.com/googleapis/java-aiplatform/issues/178")
   @Test
   public void testPredictImageObjectDetection() throws IOException {
     // Act