Spring custom validation message
The following few step is all you need to create custom validation message.
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forEach List
Java 8 lambda provide easy and shorten syntax to iterate over the collection. This example show you to loop over the List<NameValuePair>.
Java Functional Interface – Single method
Normally when we use interface define with a method, we need a class to implements it. With lambda, we can directly implements without a class.
Amazon – Error Deleting Snapshots
I’ve recently took a snapshot quite long time ago for my images. When i tried to delete the snapshot, it prompt me snapshot snap-idxxxx is currently in used by ami-xxxx.
Amazon WorkMail
In this article, I’m going to talk about how I setup amazon workmail within few minutes.
Transfer files from EC2 to S3
This tutorial talked about how to transfer files from EC2 to S3.
OXM with Castor.
In article I’ll show you fews step to kick start the marshalling and unmarshalling with castor.
AWS Instance with cron job
This example show how to create a cron job that usually require with sudo command. Let’s say I’d like to ensure mysqld instance is restart when the service is stopped.
RDS mysql How to modified max_connection
In this article, I’ll explain and show you how to modified max_connection in AWS RDS mysql.
ActiveMQ UnknownHostException:
When u have started activemq with console that appear the unknowhostexception, try the follow solutions.