Java flight recorder is an in-built event-based tool in the JVM for profiling Java applications. JFR collects diagnostic and profiling data about JVM and a running Java application. It is considered to be low overhead (<2%). JFR continuously collects, saves data, and threads stacks in a buffer for the running…

In this article, we will explore some the less known JVM memory regions. Most of us are familiar with heap, which is where all the objects and string pool lives. There are many tools and resources which can help in profiling the heap. …

Modern computer networks are packet-switched networks, where data is split into packets and each packet is handled separately. This allows many devices to share the common network. Each packet contains information about the sender and receiver. The original design goal of the Internet Protocol was to develop a platform-independent protocol…

Security has always been an important consideration while building products and applications. Increasingly more and more organizations are putting greater emphasis on securing applications. In this post, we will explore Java’s cryptographic components. Cryptography Functions Encryption: Encryption is the process of taking plain text and ciphering it so that it…

GraalVM started as a research project at oracle 8 years ago. It’s an open-source project under the GPLv2 license, with the same terms as Java. The first production version was released in May 2019. Since then, it continues to impress with its progress. …

Search is a big part of our modern-day lives. Anytime, we want to find some information online, we rely on web search engines to provide relevant search results. Search engines are highly optimized to provide good results based on a myriad of factors. More often than not, we do end…

Real-time web applications like chat are around for some time. There are various techniques for building those applications like hidden frames, long polling, and WebSockets. WebSockets are more popular nowadays as all modern browsers support them. They use HTTP for initial handshake request after that connection would be upgraded to…

Logging is a critical component of any software. A Well-thought-out logging strategy is essential for quick debugging, easy maintenance, and understanding of the application usage patterns. Opposite of this, could decrease the performance of the app, increase the cost of ownership, and hurt developer productivity. Logging frameworks abstract complexities associated…

Java8 came out in 2014 and it is still the most used release. According to a recent JVM ecosystem report, its usage is 64%. Java8 was loaded with a lot of goodies, such as lambda’s, streams, default methods, Instant class, Optional keyword, etc. Also, Java8 has set the stage for…