Okta - PKCE Verification Failed while requesting token

Let me clear a few concepts before I dive into the resolution for " PKCE Verification Failed " " Authorization Code " fl...Read More

How to rename an AWS Lambda function?

 As of writing this article, there is no support in AWS to rename a Lambda function. However, there is an option to set an alias . And you c...Read More

Groovy - What is Memoization?

Memoization (a.k.a tabling) is a technique in programming where the result of a function call is stored in cache and when the function is s...Read More

Groovy - How to read and write to excel sheets with Groovy?

Scriptom provides a simple COM library for Groovy. It is a Groovy wrapper around JACOB (Java COM Bridge) which provides access to COM Au...Read More

Spring MVC - How to handle errors from a controller?

In a web application, it is very important to handle errors. Proper error handling would protect the application from several vulnerabiliti...Read More

Java - How to find the IP Address of a host in Java ?

In Java, if you are looking to resolve an IP Address from the given hostname, then you can leverage the capabilities provided by InetAddress...Read More

Spring - Initializing a Spring Bean

In Spring, it's often necessary to run custom code during a bean's initialization—for example, to validate mandatory properties or ...Read More