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Definitive Guide To Java 12
Java 12 will be released in a few days and here’s everything you need to know about it. Be it switch expressions, the teeing collector, improved start time thanks to the default CDS archive, or better memory usage due to garbage collection improvements – you will see each feature presented as well as migration options.
#java #java12 #middle #senior
https://blog.codefx.org/java/java-12-guide/
Java 12: Mapping with Switch Expressions
Java 12 comes with “preview” support for “Switch Expressions”. In this article, you will be looking at the new feature and how it can be used in conjunction with some common Stream operations. Jump in to learn how you can make your code even better with Streams and Switch Expressions!
https://www.javacodegeeks.com/2019/03/java-12-mapping-with-switch-expressions.html
#java #java12 #middle #senior
20 Examples of Using Java’s CompletableFuture
Java 8's CompletableFuture is a versatile tool to have. Here are 20 examples of how you can use it in your code for the best effect. Be sure to check them out!
#java #java8 #middle #senior
https://dzone.com/articles/20-examples-of-using-javas-completablefuture
Continuous Profiling in Production: What, Why and How
Richard Warburton and Sadiq Jaffer talk about the ins and outs of profiling in a production system, the different techniques and approaches that help understand what’s really happening with a system. This helps solve new performance problems, regressions and undertake capacity planning exercises.
#tools #profiling #middle #senior
https://www.infoq.com/presentations/cotinuous-profiling-production
Explore the New Java Garbage Collectors
The GC topic is still trendy especially considering the variety of Java application workloads and can have significant impact on performance.
The last two releases of Java introduced three new GCs. We'll take a look at each of them and what they add to the ecosystem.
#java #gc #middle #senior
https://dzone.com/articles/java-garbage-collection-3
Box Old Objects to Be Autoclosable
Since Java 7 we can use try-with-resources and have any object automatically closed that implements the Autocloseable interface. But some of the classes need some wrap-up but are not Autocloseable. In this article Peter Verhas is sharing a nice tip how we can close such resources in very simple way! Check it out!
#java #junior #middle
https://javax0.wordpress.com/2019/05/22/box-old-objects-to-be-autoclosable/
Excursions into Deduplication
For many workloads strings can be the most significant contributor to memory footprint.
When are Strings deduplicated? How can you find out whether they are of any benefit in your application? How much does it cost in terms of CPU?
This article will guide you how to easily find the answers to the questions above.
#java #jvm #middle #senior
https://www.javaspecialists.eu/archive/Issue270.html
Concurrent programming: Two techniques to avoid shared state
Most certainly the more you learn about multi-threaded programming, the harder it gets. Coordinating multiple threads modifying the same data is complicated. In the following article, you are going to explore two techniques that can help you: Copy before modification and Asynchronous modification using a single thread.
#java #concurrency #middle
http://vmlens.com/articles/cp/2_techniques_to_avoid_shared_state/
Immutable Collections In Java – Not Now, Not Ever
In JDK terminology, immutable and unmodifiable have shifted over the last few years. At first, the term immutable was used for the collections returned by Java 9’s collection factory methods. But will a method that prints all elements in an immutable collection always have the same output? Yes? No? What’s An Immutable Collection? Is immutability a feature? Can Unmodifiable And Immutable Collections Be Retrofitted? Find out now!
#java #jvm #jdk #architecture #middle
https://blog.codefx.org/java/immutable-collections-in-java/