Learn to implement a production-grade, fully secure REST API with Spring 6 and Spring Boot 3.
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Liskov Substitution Principle in Java
The L in SOLID, the Liskov Substitution Principle helps structure object oriented design. We also explore how it supports the Open/Closed Principle.
Java Weekly, Issue 339
The Spring story on GraalVM is getting polish and Java 14 and even 15 features are getting some well-deserved attention. A solid week in the Java ecosystem.
HTTP/2 in Netty
Learn how to implement an HTTP/2 server and client in Netty using code samples.
Mockito and Fluent APIs
Learn how we can use Mockito to mock a simple fluent API.
Causes and Avoidance of java.lang.VerifyError
Learn about the cause of java.lang.VerifyError errors and multiple ways to avoid it
Guide to Tomcat Manager Application
Learn how to use the Tomcat Manager App – a web application packaged with the Tomcat server for managing our deployed web applications.
Digital Signatures in Java
Java provides support for digital signature via the JCA APIs. See how to digitally sign and verify messages with public/private key cryptography.
Guide to System.gc()
Learn about the System.gc() method understand if there are any use cases when calling this method might be useful
Implementing a Simple Blockchain in Java
A simple reference implementation of a simple blockchain in Java.
An Introduction to Java SASL
A quick and practical overview of Java SASL – Simple Authentication and Security Layer.
The Basics of Java Security
A quick and practical overview of Java security basics.
Modifying an XML Attribute in Java
Learn how to modify attributes in an XML document using Java with JAXP, dom4j, and jOOX
Java Weekly, Issue 292
The Java shell, better NPE debugging and being careful what dependencies you’re pulling into your project. Good stuff.
Remote Code Execution with XStream
Learn how to prevent a remote code execution attack on an application that uses XStream to read XML
LIKE Queries in Spring JPA Repositories
Learn how to create LIKE queries in Spring JPA Repositories.
Introduction to SPNEGO/Kerberos Authentication in Spring
A quick and practical overview of Spring Security and Kerberos integration.
Spring Data JPA and Null Parameters
Learn different ways to use null parameters with Spring Data JPA queries, including how to make query parameters optional.
Java Weekly, Issue 276
Java 12 has been out of just a few weeks and packing some really cool functionality. We’re looking at the enhanced switch this week – highly useful.
Building a Web Application with Spring Boot and Angular
Have a look into building a web application with a Spring REST back-end and Angular front-end.