microsoft-azure-storage/src/com/microsoft/azure/storage/queue/CloudQueue.java
@DoesServiceRequest
    public CloudQueueMessage peekMessage(final QueueRequestOptions options, final OperationContext opContext)
            throws StorageException {
        return getFirstOrNull(this.peekMessages(1, null /* options */, null /* opContext */));
    }
@DoesServiceRequest
    public CloudQueueMessage peekMessage(final QueueRequestOptions options, final OperationContext opContext)
            throws StorageException {
        return getFirstOrNull(this.peekMessages(1, null /* options */, null /* opContext */));
    }
Peeks a message from the queue, using the specified request options and operation context. A peek request
retrieves a message from the front of the queue without changing its visibility.

@param options
A {@link QueueRequestOptions} object that specifies any additional options for the request. Specifying
<code>null</code> will use the default request options from the associated service client (
{@link CloudQueueClient}).
@param opContext
An {@link OperationContext} object that represents the context for the current operation. This object
is used to track requests to the storage service, and to provide additional runtime information about
the operation.

@return An {@link CloudQueueMessage} object that represents the requested message from the queue.

@throws StorageException
If a storage service error occurred during the operation.