microsoft-azure-storage/src/com/microsoft/azure/storage/queue/CloudQueue.java
@DoesServiceRequest
    public Iterable<CloudQueueMessage> peekMessages(final int numberOfMessages, QueueRequestOptions options,
            OperationContext opContext) throws StorageException {
        Utility.assertInBounds("numberOfMessages", numberOfMessages, 1, QueueConstants.MAX_NUMBER_OF_MESSAGES_TO_PEEK);

        if (opContext == null) {
            opContext = new OperationContext();
        }

        opContext.initialize();
        options = QueueRequestOptions.populateAndApplyDefaults(options, this.queueServiceClient);

        return ExecutionEngine.executeWithRetry(this.queueServiceClient, this,
                this.peekMessagesImpl(numberOfMessages, options), options.getRetryPolicyFactory(), opContext);
    }
@DoesServiceRequest
    public Iterable<CloudQueueMessage> peekMessages(final int numberOfMessages, QueueRequestOptions options,
            OperationContext opContext) throws StorageException {
        Utility.assertInBounds("numberOfMessages", numberOfMessages, 1, QueueConstants.MAX_NUMBER_OF_MESSAGES_TO_PEEK);

        if (opContext == null) {
            opContext = new OperationContext();
        }

        opContext.initialize();
        options = QueueRequestOptions.populateAndApplyDefaults(options, this.queueServiceClient);

        return ExecutionEngine.executeWithRetry(this.queueServiceClient, this,
                this.peekMessagesImpl(numberOfMessages, options), options.getRetryPolicyFactory(), opContext);
    }
Peeks a set of messages from the queue, using the specified request options and operation context. A peek request
retrieves messages from the front of the queue without changing their visibility.

@param numberOfMessages
The number of messages to retrieve.

@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 enumerable collection of {@link CloudQueueMessage} objects that represents the requested messages from
the queue.

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