InfoQ Homepage Java Content on InfoQ
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Jacoco Agent Measures Code Coverage for Any Test
Jacoco is an open-source code coverage library for Java distributed under the Eclipse Public License. The library is often used in Java projects to measure the coverage of unit or integration tests. But it's also possible to measure the coverage of any test, which uses a running application, with the Jacoco agent.
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GraalVM for JDK 21 Delivers Performance Enhancements and Improved Developer Experience
Oracle has recently announced the release of GraalVM for JDK 21. GraalVM is a JDK that uses an alternative just-in-time (JIT) compiler but it also includes a Native Image module, a technology that allows Java applications to run as native executables, without the need for a JVM. This can improve the performance of Java applications in terms of speed, memory, and size.
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Gatling Supports Java DSL for Java and Kotlin-Based Performance Tests
The load testing tool Gatling is designed for ease of use, maintainability and performance. Originally a Scala DSL was provided to write the test scenarios. Some time ago, a Java DSL was released, which makes it possible to write test scenarios in Java or Kotlin.
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Java News Roundup: JDK 21, GraalVM for JDK 21, Apache Pinot 1.0, Eclipse Epicyro 3.0
This week's Java roundup for September 18th, 2023, features news from OpenJDK, JDK 22, JDK 21, GraalVM, Corretto, Liberica, Epicyro 3.0, Pinot 1.0, and releases for: Spring Boot; Spring Integration; Spring Batch; Spring Cloud Dataflow; Spring Security; Spring GraphQL; Spring Authorization Server; Spring Apache Pulsar; Spring Modulith; Quarkus; Open Liberty; Micronaut; Hibernate; OpenXava; Gradle.
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Testcontainers Desktop Provides Support for Investigations and Debugging
AtomicJar has introduced the freely available Testcontainers Desktop. Testcontainers Desktop supports several features that aren't available in the Testcontainers framework and offers better support for investigations and debugging with fixed ports for containers and the option to freeze and reuse containers. Lastly, the application supports switching easily between container runtimes.
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Java 21, the Next LTS Release, Delivers Virtual Threads, Record Patterns and Pattern Matching
Oracle has released version 21 of the Java programming language and virtual machine. As the first release offering long-term support since JDK 17 in 2021, the final feature set includes 15 JEPs. Three of these - Virtual Threads, Record Patterns and Pattern Matching for switch - have completed their respective rounds of previews and are now finalized.
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Java News Roundup: JCP 25th Anniversary, Foreign Function & Memory API, Eclipse Epicyro
This week's Java roundup for September 11th, 2023, features news from OpenJDK, JCP, JDK 22, JDK 21, Payara Platform, Eclipse Epicyro, Grails Plugin Portal and milestone and point releases for: Spring Framework, Spring Data, Spring Tools, Quarkus, Micronaut, Helidon, MicroProfile Telemetry, Groovy, Camel Quarkus, Micrometer Metrics and Tracing, Piranha, JobRunr, JHipster Lite and Project Reactor.
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JCP EC Industry Experts Reveal Their Favorite JDK 21 Feature at Special Oracle Event in NYC
At a special event hosted by the New York Java Special Interest Group and Garden State Java User Group at BNY Mellon in New York City, industry experts from the Java Community Process (JCP) Executive Committee participated in a panel discussion to reveal their favorite features from the upcoming release of JDK 21. Included in the festivities was a celebration of the 25th anniversary of the JCP.
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Java News Roundup: JDK 22 Release Schedule, Project Babylon, Helidon 4.0-RC2, MicroProfile 6.1-RC1
This week's Java roundup for September 4th, 2023, features news from OpenJDK, JDK 22, JDK 21, GraalVM Native Build Tools 0.9.26, Quarkus 3.3.2, MicroProfile 6.1-RC1, MicroProfile Config 3.1-RC2, Helidon 4.0.0-M2, Open Liberty 23.0.0.9-beta, Hibernate Search 7.0.0.Beta1, Infinispan 14.0.17.Final, Eclipse Mojarra 4.0.4, JDKMon 17.0.71, JHipster 8.0.0-beta.3 and 7.9.4 and JavaZone 2023 Conference.
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Delivery Hero Implements Event-Driven Architecture to Handle Baemin Growth
Baemin, a South Korean food delivery service owned by Delivery Hero, successfully navigated the challenges of rapid customer member growth by moving from a monolithic architecture to a more flexible event-driven microservices-based system.
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Java News Roundup: Single Query Loading, GraalVM, GlassFish, JReleaser, Quarkus, Micronaut
This week's Java roundup for August 28th, 2023, features news from OpenJDK, JDK 22, JDK 21, GraalVM Native Build Tools 0.9.25, Single Query Loading in Spring JDBC, Quarkus 3.3.1, 3.2.5.Final and 2.16.10.Final, Micronaut 4.1.0 and 4.0.6, Wildfly 29.0.1, Hibernate ORM 6.3.0 and 6.2.8, Hibernate Reactive 2.0.5, GlassFish 7.0.8, Eclipse Vert.x 4.4.5, JKube 1.14.0, JReleaser 1.8.0 and OpenXava 7.1.5.
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JDK 21 and JDK 22: What We Know So Far
JDK 21, the next Long-Term Support (LTS) release since JDK 17, has reached its initial release candidate phase with a final set of 15 new features, in the form of JEPs, that can be separated into four categories: Core Java Library, Java Language Specification, HotSpot and Security Library. We examine JDK 21 and predict what features may be targeted for JDK 22.
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MicroStream Debuts Eclipse Store Java Persistence Framework at Eclipse Foundation
MicroStream, an open-source Java persistence framework, recently announced the first release of Eclipse Store under the auspices of the Eclipse Foundation. This first release contains two core components from MicroStream, its Serializer and StorageManager restructured as Eclipse Serializer, and Eclipse Store, respectively.
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Spring AI Provides Integration with OpenAI and Azure OpenAI
The experimental Spring AI project was introduced during the SpringOne conference and allows the creation of AI applications by using common concepts of Spring. Currently the project integrates Azure OpenAI and OpenAI as AI backends. Use cases like content generation, code generation, semantic search and summarization are supported by the project.
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Spring Modulith 1.0 Gains Production-Readiness, IDE Support and Improved Testability
Spring Modulith 1.0 was promoted from its experimental status and became a fully supported Spring project. It structures Spring Boot 3 applications through modules and events. That module structure is now visible in IDEs like Spring Tool Suite and Visual Studio Code. The Event Publication Registry persists event completion faster. And Integration Tests Scenarios ease testing events.