Sub‑100-ms APIs emerge from disciplined architecture using latency budgets, minimized hops, async fan‑out, layered caching, ...

java.lang.IllegalAccessException: module java.base does not open java.util.concurrent to unnamed module @7098b907 at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:537) ...

For Java-based programs such as Maven, Jenkins, Gradle or Tomcat to run, they need to know that Java's JDK is installed. That's the purpose of the JAVA_HOME environment variable. It tells programs ...

Community driven content discussing all aspects of software development from DevOps to design patterns. The latest long-term support (LTS) release of the JDK is Java 21, which was released in ...

Choosing the right backend technology for fintech development involves a detailed look at Java and Scala. Both languages bring distinct advantages to the table, and for professionals working in the ...

Spring 6 methods wrapped in a CompletableFuture and annotated with @Async don't hit our current instrumentation. This is because they call completeAsync on the CF, which was introduced with Java 9 and ...

ForkJoinPool is a powerful Java class used for processing computationally intensive tasks. It works by breaking down tasks into smaller subtasks and then executing them in parallel. This thread pool ...

A callback operation in Java is one function that is passed to another function and executed after some action is completed. A callback can be executed either synchronously or asynchronously. In the ...