Streams // nipafx

All API Additions From Java 21 to 25#video#java‑25 #core‑libs #streams #documentation

Learn about all API additions between Java 21 and Java 25: scoped values, stream gatherers, class-file API, foreign function and memory API, Javadoc additions, and preview features.2025-09-09

Implementing New Java Stream Operations#video#streams

Implementing a bunch of Gatherers to better understand the proposed addition to the stream API2023-11-02

Better Java Streams with Gatherers - Inside Java Newscast #57#video#streams

Stream::gather is a new intermediate meta-operation that allows the JDK and us to implement all kinds of intermediate operations as Gatherers without overloading the Stream interface2023-11-02

Why Don't They Just... ?! The Deliberations Behind Evolving Java#talk#streams #optional #records #collections

There are many nifty features that Java could have but doesn't. Somewhat surprisingly, there are reasons for that and in this talk I'll discuss those for a few concrete cases as well as the deliberations behind such decisions.2021-04-28

Broken Stream::group with Java 16's mapMulti#post#java‑16 #streams

Java 16 adds a new method mapMulti to Stream and it can be abused to simulate a reverse-flatMap aka group operation (with shortcomings).2020-11-16

Faster flatMaps with Stream::mapMulti in Java 16#post#java‑16 #streams #performance

Java 16 adds a new method mapMulti to Stream. It fills the same role as flatMap, but is more imperative - and faster.2020-11-04

Teeing Collector in Java 12#post#java‑12 #streams

The teeing collector, available since Java 12 as Collectors::teeing, forwards its input to two other collectors before merging their results with a function.2019-03-04

Code-First Java 9 Tutorial#post#java‑9 #migration #streams #optional #collections #j_ms

Showing code for the most important Java 9 features: private interface methods, stream and optional APIs, collection factories, reactive streams, stack walking, multi-release JARs, redirected platform logging, unified logging, the module system, and more. If you're new to Java 9, start here.2018-02-05

Repackaging Exceptions In Streams#post#clean‑code #java‑8 #lambda #streams

How to repackage checked exceptions that get thrown in a Java stream pipeline so that they can be thrown without the compiler complaining about it.2017-02-13

Expert Java 8#talk#java‑8 #lambda #streams #optional #default‑methods

With this talk, I help you get the most out of lambdas, Streams, Optionals, and default methods, helping you master Java 8's core features2017-02-07

Rebutting 5 Common Stream Tropes#post#java‑8 #rant #streams

Articles about Java 8's streams often repeat a bunch of tropes: succinctness, ugly mechanics, anemic pipelines, weak exception handling. This is a rebuttal!2016-09-01

Oh No, I Forgot Stream::iterate!#post#java‑9 #streams

In Java 9 Stream gets a couple of new methods - one of them is an overload of iterate that takes a predicate and returns a finite stream.2016-07-25

Java 9 Additions To Stream#post#java‑9 #streams

Java 9 is coming! One of the many changes are new Stream methods: takeWhile, dropWhile, and ofNullable. For more fun with streams!2016-06-20

Beware Of findFirst() And findAny()#post#java‑8 #streams

Stream.findFirst() and findAny() work with any number of elements in the stream. Make sure to reduce(toOnlyElement()) if there should be at most one.2016-01-14

Stream Performance - Your Ideas#post#java‑8 #performance #streams

Another post about stream performance - this one implements your ideas about how else to approach the topic.2015-09-18

Stream Performance#post#java‑8 #performance #streams

A close look at stream performance. How do they compare to for and for-each loops oder arrays and lists. And what role plays boxing?2015-09-07

Casting In Java 8 (And Beyond?)#post#java‑8 #optional #streams

Proposal to implement new casting methods on Java's Class. They aim to fulfill the need for improved ways to cast which was created by Java 8.2015-07-06