test: Clean up resources created in ITs (#4024)

* chore: Cleanup initialized resources

* chore: Delete created dataset

* chore: Use try-with to close stream

Author: lqiu96

google-cloud-bigquery/src/test/java/com/google/cloud/bigquery/it/ITBigQueryTest.java

@@ -1099,10 +1099,12 @@ public static void beforeClass() throws InterruptedException, IOException {
             .setContentType("application/json")
             .build(),
         JSON_CONTENT_SIMPLE.getBytes(StandardCharsets.UTF_8));
-    InputStream stream =
-        ITBigQueryTest.class.getClassLoader().getResourceAsStream("QueryTestData.csv");
-    storage.createFrom(
-        BlobInfo.newBuilder(BUCKET, LOAD_FILE_LARGE).setContentType("text/plain").build(), stream);
+    try (InputStream stream =
+        ITBigQueryTest.class.getClassLoader().getResourceAsStream("QueryTestData.csv")) {
+      storage.createFrom(
+          BlobInfo.newBuilder(BUCKET, LOAD_FILE_LARGE).setContentType("text/plain").build(),
+          stream);
+    }
     storage.create(
         BlobInfo.newBuilder(BUCKET, JSON_LOAD_FILE_BQ_RESULTSET)
             .setContentType("application/json")
@@ -1179,10 +1181,11 @@ public static void beforeClass() throws InterruptedException, IOException {
   }
 
   @AfterClass
-  public static void afterClass() throws ExecutionException, InterruptedException {
+  public static void afterClass() throws Exception {
     if (bigquery != null) {
       RemoteBigQueryHelper.forceDelete(bigquery, DATASET);
       RemoteBigQueryHelper.forceDelete(bigquery, UK_DATASET);
+      RemoteBigQueryHelper.forceDelete(bigquery, OTHER_DATASET);
       RemoteBigQueryHelper.forceDelete(bigquery, MODEL_DATASET);
       RemoteBigQueryHelper.forceDelete(bigquery, ROUTINE_DATASET);
     }
@@ -1191,6 +1194,11 @@ public static void afterClass() throws ExecutionException, InterruptedException
       if (!wasDeleted && LOG.isLoggable(Level.WARNING)) {
         LOG.log(Level.WARNING, "Deletion of bucket {0} timed out, bucket is not empty", BUCKET);
       }
+      storage.close();
+    }
+
+    if (otel instanceof OpenTelemetrySdk) {
+      ((OpenTelemetrySdk) otel).close();
     }
   }