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Java Weekly, Issue 525
New Java features to expect in 2024, testing data access layer, eBPF and Java, and meet Docker Scout
What Happens When the JVM Runs Out of Memory to Allocate During Runtime?
Explore JVM OutOfMemoryError, which indicates a problem external to our application, like other errors.
Connect to Database Through Intellij Data Sources and Drivers
Learn how to connect to a database through IntelliJ data sources and drivers.
Inter-Process Communication Methods in Java
A quick and practical guide to inter-process communication in Java.
Passing JVM Options from Gradle bootRun
Explore different ways to pass JVM options to the bootRun command.
Differences Between * and ? in Cron Expressions
Learn the differences between the asterisk and the question mark special characters in cron expressions.
What Is the .idea Directory?
IntelliJ IDEA stores its settings in the .idea directory. We look at what’s stored here and whether to share the contents via source control.
Why wait() Requires Synchronization?
Learn why the Java wait() method requires synchronization.
How to Remove Line Breaks From a File in Java
Learn about the different kinds of line breaks and explore various approaches to removing line breaks from a file.
Create a GraalVM Docker Image
Learn how to build a Docker image for a GraalVM native executable.
Introduction to Apache Kafka
Learn the the basics of Apache Kafka.
Spring Boot Application on Liberica Runtime Container
A quick and practical guide to dockerizing a Spring Boot application on on Liberica Runtime Container.
Secure Kubernetes Secrets with Vault
Explore different ways to access secrets stored in a Vault instance from Kubernetes-based applications.
Assert Regex Matches in JUnit
Explore several approaches to asserting regex matches in JUnit, empowering us to test our string patterns effectively.
Differences Between Heap Dump, Thread Dump and Core Dump
Learn the differences between heap dump, thread dump, and core dump and understand their use cases.
JSON File Data Into Kafka Topic
Explore the necessary steps to send JSON format data to the topic using a Kafka producer and consumer.
Check if Certificate Is Self-Signed or CA-Signed With Java
Learn how to determine if a certificate is self-signed or signed by a trusted Certificate Authority (CA).
Programmatic Generation of JSON Schemas in Java
Learn how to create JSON Schemas programmatically using the Java JSON Schema Generator library.
Convert Epoch Time to LocalDate and LocalDateTime
A quick and practical guide to converting epoch time to LocalDate and LocalDateTime in Java.