InfoQ Homepage JDK Content on InfoQ
-
Asserting JDK Flight Recorder Events with JfrUnit
JfrUnit may be used to verify whether or not events occurred that impact the performance of the application such as garbage collection and memory allocation. JfrUnit makes it possible to assert events emitted from the application such as memory allocation, IO, or database queries. Custom events may be created with the JMC agent for libraries that don’t emit events themselves.
-
Microsoft Open-Sources GCToolkit to Tap into JVM GC Logs
By open sourcing GCToolkit, Microsoft promises to tap into the rich information stored within the JVM’s GC logs. The tool promises to provide mechanisms to parse, analyse and visualise the GC log files in a human friendly manner.
-
Introducing JDKMon: a New Tool to Detect and Update JDKs
JDKMon, a new tool to monitor and update installed JDKs, provides an alternative to existing tools such as SDKMAN. With the many available JDK distributions nowadays, keeping several of them up-to-date on a user’s machine can be a challenge. JDKMon displays the installed JDK distributions that include buttons to download the latest version for each distribution.
-
Java News Roundup: JDK 17 Initial RC, OpenJDK, Updates to Open Liberty, Hibernate ORM, Spring Cloud
This week's Java roundup for August 2nd, 2021, features news from OpenJDK, JDK 17 initial release candidate, JDK 18, Spring Cloud 2021.0.0-M1, Quarkus 2.1.1, Open Liberty 21.0.0.8, WildFly 24.0.1 S2I Docker images, Hibernate ORM 5.5.6, JReleaser 0.6.0, Apache Camel 3.11.1 and MicroStream 5 is now open-source.
-
Internal JDK Elements Strongly Encapsulated in JDK 17
JEP 403 (Strongly Encapsulate JDK Internals) has been targeted for the GA release of JDK 17. It’s no longer possible to access internal APIs via the --illegal-access command line option. It’s expected that this option will be removed completely in the future. The --add-opens command line option or the Add-Opens JAR-file attribute may be used to open specific packages.
-
GraalVM 21.1 Supports JDK 16
Oracle Labs has released GraalVM 21.1 featuring experimental binaries for Java 16. This new release also contains performance improvements along with new features, such as support for multiple locales in a Native Image. Node.js, originally included in previous versions of the GraalVM installation package, is now an optional dependency requiring manual installation.
-
JDK Mission Control 8 Released
JDK Mission Control (JMC) is best known as the dashboarding solution used to analyze the data collected by JDK Flight Recorder. JMC 8 offers more insights into applications by introducing new graphs and including heap dump analysis by default.
-
Java News Roundup - Week of March 29th, 2021
This week’s Java roundup features news on: the proposed JDK 17 proposed release schedule; Confluent providing early access to KIP-500, an internal metadata store for Apache Kafka that will ultimately remove its dependency on Apache ZooKeeper; Red Hat and AWS announcing the Red Hat OpenShift Service on AWS; and point releases for Quarkus, Micronaut and Spring Data.
-
AdoptOpenJDK Welcomes Dragonwell
AdoptOpenJDK and Alibaba announced that the Dragonwell JDK will be built, tested, and distributed using AdoptOpenJDK's infrastructure. This means users have more options and can opt to use Dragonwell because of its unique features such as coroutine and warmup support.
-
OpenJDK Completes Migration to GitHub
OpenJDK has completed the transition from Mercurial to GitHub as planned in September 2020. GitHub offers various benefits such as increased performance and support for code reviews. InfoQ reported in June about the change in more detail.
-
Records and Pattern Matching for Instanceof Finalized in JDK 16
Final releases of records and the new pattern matching functionality for instanceof are planned for JDK 16.
-
10 Weeks to QCon New York: Keynotes Announced and Early Peek into the Speaker Lineup
QCon New York (the 6th annual software conference) is just 10 weeks away. June 26-28 QCon returns to its new location at Times Square’s Marriott Marquis, but with the same great lineup of speakers. 2017 features speakers from Stitch Fix, Google, Netflix, Lyft, Pivotal, Redis Labs, among others.
-
JVMs Across the Data Center and Twitter's JDK
The Twitter Sponsored Solutions track at QConSF2016 features an engineering talk on JVMs Across the Data Center and unveils an in-house OpenJDK fork, the Twitter-JDK, with noted potential open-sourcing or release to broader public.
-
Oracle Paves the Way to Standardise Command Line Options in the JDK
Oracle has created JEP 293 to introduce a set of guidelines for command line options in JDK tools in an attempt to fix the existing disparity among them. The JEP has no target version yet, meaning it will be delivered with Java 10 as soonest; however, taking into account that the scope is only to create a set of guidelines for new options, it may take even longer for the effects to be felt.
-
Jigsaw Finally Arrives in JDK 9
Alan Bateman has sent a mail to the JDK-9 development list, indicating that a snapshot of Jigsaw will be integrated later this month. InfoQ looks in deeper to see what this will mean.