Tag: #java

How do you add custom response headers in a Spring Boot application?

To add custom response headers in a Spring boot application use ResponeEntity class. Set the values using HttpHeader object. Set the header object in response entity To set a response header for all the response , implement a Filter class and set the header in the ServletResponse class Code Snippet @Component public class ResFilter implements … Continue reading How do you add custom response headers in a Spring Boot application? →

Java microservices with GraalVM

Microservice is a trending and popular architecture to build applications as it allows organizations to be agile and adopt DevOps and continuous testing practices.Spring Boot is a very popular technology choice to build java based microservices, but it consumes a good amount of memory and spring's runtime reflection approach leads to longer startup times as … Continue reading Java microservices with GraalVM →

GraalVM : A JVM written in Java for high performant applications !!

The HotSpot JVM which i shared in the previous blog is suited and optimized for traditional on-premise based applications to provide high throughput and stability.New modern applications are being built for cloud as distributed systems developed using microservices, event driven, asynchronous and reactive design which should scale quickly and efficientlyHotSpot JVM and JIT compiler is … Continue reading GraalVM : A JVM written in Java for high performant applications !! →

Execution of a Java Program & Role of Just In Time (JIT) Complier

When we write a Java program and issue a javac command , the program is compiled to bytecode.To execute this program, we issue a java command and when we do so, the bytecode generated by javac is interpreted by the Java Virtual Machine (JVM) to produce machine code which is ultimately fed to CPU to … Continue reading Execution of a Java Program & Role of Just In Time (JIT) Complier →

Concurrency & Parallelism in Java

Concurrency and Parallelism are often used with respect to multithreaded programs and both have different meanings in this context. Concurrency is about processing more than one task at same time but not necessarily simultaneously, It is applied to reduce the response time of the system by using the single processing unit. In a concurrent application, … Continue reading Concurrency & Parallelism in Java →