update exception handling

samples/src/main/java/com/example/bigquery/AddColumnLoadAppend.java

@@ -37,15 +37,16 @@
 
 public class AddColumnLoadAppend {
 
- public static void runAddColumnLoadAppend() {
+ public static void runAddColumnLoadAppend() throws Exception {
  // TODO(developer): Replace these variables before running the sample.
  String datasetName = "MY_DATASET_NAME";
  String tableName = "MY_TABLE_NAME";
  String sourceUri = "/path/to/file.csv";
  addColumnLoadAppend(datasetName, tableName, sourceUri);
  }
 
- public static void addColumnLoadAppend(String datasetName, String tableName, String sourceUri) {
+ public static void addColumnLoadAppend(String datasetName, String tableName, String sourceUri)
+ throws Exception {
  try {
  // Initialize client that will be used to send requests. This client only needs to be created
  // once, and can be reused for multiple requests.
@@ -91,10 +92,9 @@ public static void addColumnLoadAppend(String datasetName, String tableName, Str
  } else if (completedJob.getStatus().getError() != null) {
  // You can also look at queryJob.getStatus().getExecutionErrors() for all
  // errors, not just the latest one.
- System.out.println(
+ throw new Exception(
  "BigQuery was unable to load into the table due to an error: \n"
  + loadJob.getStatus().getError());
- return;
  }
 
  System.out.println("Column successfully added during load append job");

samples/src/test/java/com/example/bigquery/AddColumnLoadAppendIT.java

@@ -58,7 +58,7 @@ public void tearDown() {
  }
 
  @Test
- public void testAddColumnLoadAppend() {
+ public void testAddColumnLoadAppend() throws Exception {
  String sourceUri = "gs://cloud-samples-data/bigquery/us-states/us-states.csv";
 
  String tableName = "ADD_COLUMN_LOAD_APPEND_TEST";