Remove RemoteGcsHelper exception cast

gcloud-java-storage/src/main/java/com/google/gcloud/storage/testing/RemoteGcsHelper.java

@@ -65,7 +65,10 @@ public StorageOptions options() {
 
   /**
    * Deletes a bucket, even if non-empty. Objects in the bucket are listed and deleted until bucket
-   * deletion succeeds or {@code timeout} expires.
+   * deletion succeeds or {@code timeout} expires. To allow for the timeout, this method uses a
+   * separate thread to send the delete requests. Use
+   * {@link #forceDelete(Storage storage, String bucket)} if spawning an additional thread is
+   * undesirable, such as in the App Engine production runtime.
    *
    * @param storage the storage service to be used to issue requests
    * @param bucket the bucket to be deleted
@@ -89,20 +92,14 @@ public static Boolean forceDelete(Storage storage, String bucket, long timeout,
   }
 
   /**
-   * Deletes a bucket, even if non-empty. Objects in the bucket are listed and deleted until bucket
-   * deletion succeeds. This method can be used to delete buckets from within App Engine.  Note that
-   * this method does not set a timeout.
+   * Deletes a bucket, even if non-empty. This method blocks until the deletion completes or fails.
    *
    * @param storage the storage service to be used to issue requests
    * @param bucket the bucket to be deleted
    * @throws StorageException if an exception is encountered during bucket deletion
    */
-  public static void forceDelete(Storage storage, String bucket) throws StorageException {
-    try {
-      new DeleteBucketTask(storage, bucket).call();
-    } catch (Exception e) {
-      throw (StorageException) e;
-    }
+  public static void forceDelete(Storage storage, String bucket) throws InterruptedException {
+    new DeleteBucketTask(storage, bucket).call();
   }
 
   /**
@@ -174,7 +171,7 @@ public DeleteBucketTask(Storage storage, String bucket) {
     }
 
     @Override
-    public Boolean call() throws Exception {
+    public Boolean call() throws InterruptedException {
       while (true) {
         for (BlobInfo info : storage.list(bucket).values()) {
           storage.delete(bucket, info.name());