The ConcurrentModificationException is a runtime exception in Java, which means the Java compiler does not require you to handle it explicitly using try-catch blocks. The Runtime exception is thrown automatically at runtime when it occurs. ConcurrentModificationException typically happens when a Java collection — such as a List, Set, or Map — is modified while being… Read More »
Monitoring microservices means tracking the health, performance, and behavior of your services to ensure they run efficiently and reliably. It’s essential for both microservices and standalone applications, because a failure in one service can impact others, and debugging such issues can be time-consuming—ultimately leading to business losses. In this tutorial, you’ll learn how to monitor… Read More »
In order to learn about localhost first, we need to understand how any request gets processed over the internet. Whenever we hit any URL in the browser, say paulsofts.com, the request goes to the DNS (Domain Name System) and the DNS server converts the domain name (here, paulsofts) into an IP address. This IP address… Read More »
What is SonarQube? SonarQube is an open-source platform used for static code analysis and checks for the code quality in an software applications. It helps to identify the bugs, code smells, Security vulnerabilities and technical debt in software development lifecycle. It supports multiple programming languages and easily integrates with the CI/CD tools and pipeline and… Read More »
Web server vs application server 1: What is Web Server? When we have an application program that has static contents such as texts, images, audio, and video files, etc. Say, an HTML page (HTML, CSS, JS), we need an execution engine that would be able to execute the static contents called a web server. Example:… Read More »
How to store images in database You can store the images or file in database using the following approaches: Store images in database In this approach, you can directly store the images as a binary file in the database, where while storing the image you can compress it and while retrieving it you can decompress… Read More »
What is the JavaDoc Tool The JavaDoc tool is a document generator tool that is used to generate standard documentation in HTML format. JavaDoc comes along with the Java Development Kit (JDK) and generates the API documentation for Java codes and provides information about classes, methods, fields, parameters and other elements of the Java codes.… Read More »
1. Why Spring Boot over Spring framework? Spring vs Spring Boot The Spring Boot framework is built on top of the Spring framework, and it is used for a rapid production-ready environment that enables the developers to directly focus on the business logic instead of struggling with the configuration and setup; those will be automatically… Read More »
The Circuit Breaker pattern is a microservices design pattern that is used to protect the microservices architecture from cascading failures to enhance the resiliency and fault tolerance in a distributed system. What is Cascading Failure? Cascading failure is a type of failure in which one part of the system fails; it leads to failure of… Read More »
In Android, a content provider is a component that manages access to a central repository of data. It is a part of Android app architecture that allows the Android apps to share data securely between different apps. The data can be stored in a file system, in an SQLite database, on the web, or in… Read More »