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java 17 post java 17 core libs java 17 expands the api for random number generation to make it more usable extensible and robust with randomgenerator and randomgeneratorfactory at its core 2021 09 13 the state of project valhalla with brian goetz video conversation project valhalla conversation with project valhalla lead brian goetz about java s original sin unifying the type system expanding generics current work the project timeline and more 2021 08 30 fast and secure inter process communication on jdk 16 inside java newscast 11 video java 16 jdk 16 s socket channel server socket channel api can use unix domain sockets for faster and more secure inter process communication on the same host also jdk 17 final release candidate and oracle developer live 2021 08 26 random numbers and jdk flight recorder inside java newscast 9 video java 16 java 17 core libs performance tools the new api for random number generation in java 17 why it needed to change and how the new api is more usable extensible and robust and how to get started with jdk flight recorder particularly on java 16 2021 07 29 incremental evolution pattern switches vs visitor pattern and wayland support inside java newscast 8 video java 17 project panama pattern matching patterns how the six month release cadence enabled a more incremental evolution of the java platform and how pattern switches and sealed classes are an alternative to the visitor pattern also maybe wayland support for java 2021 07 15 visitor pattern considered pointless use pattern switches instead post patterns pattern matching in modern java the visitor pattern is no longer needed using sealed types and switches with pattern matching achieves the same goals with less code and less complexity 2021 07 08 handling null and upgrading past java 8 inside java newscast 7 video migration optional switch project valhalla dealing with null is never fun so in this newscast i explain how to best handle it what tools can do and how recent and upcoming language changes help dealing with it i ll also look at a recent blog post about how netflix upgraded from java 8 to 16 2021 07 01 the state of project panama with maurizio cimadamore video conversation project panama conversation with project panama lead maurizio cimadamore about the project s core mission the split into foreign memory access and foreign linker apis jextract performance interaction with project valhalla the timeline and more 2021 06 22 java modules in real life talk j_ms migration advice on why when when not and how to use java modules in real life for your projects 2021 06 18 the state of project loom with ron pressler video conversation project loom conversation with project loom lead ron pressler about the project s core mission challenges like interaction with debuggers and garbage collectors the timeline for the next steps compatibility and more 2021 06 15 java 17 features and development inside java newscast 6 video java 17 openjdk java 17 the next long term support release enters feature freeze and the release preparations begin today june 10th a good time to take a closer look at the list of jeps as well as the development process 2021 06 10 pattern matching in switches and security manager deprecation inside java newscast 5 video switch pattern matching deprecation jep 406 which is a candidate for java 17 introduced pattern matching in switch statements and expressions introduces guarded patterns and improves null handling then we need to talk about jep 411 s deprecation of the security manager 2021 05 27 26 hours of java event conversation community on may 29th we ll throw a late birthday party for java which turned 26 a few days before with a 26 hour live stream relay race 2021 05 18 5 secret java api tricks and record semantics inside java newscast 4 video records five nifty java api features that you need to know and many more in the linked thread and a quick explanation why java records are not about reducing boilerplate 2021 05 11 why java s records are better than lombok s data and kotlin s data classes post java 16 records rant while all three remove boilerplate the similarities don t go much further records have stronger semantics with important downstream benefits which makes them better not always depends on circumstances excuse the clickbait 2021 05 05 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 junit pioneer an exploratory mission to jupiter and beyond video junit pioneer from growing a community on twitch to strong documentation from squashing commits to one click releases this presentation covers junit pioneer in all detail 2021 04 26 quicker java and jdk 16 compatibility inside java newscast 3 video java 16 vector java 17 a walk through language features apis and jdk capabilities that make java quicker to use with less ceremony and more immediate results also a rundown of some of the projects with all tests green on jdk 16 2021 04 22 java generics iii wildcards video generics second part of a short series on java generics this one explains generics extends number that kinda thing 2021 04 19 java generics ii bounded type parameters video generics second part of a short series on java generics this one explains bounded type parameters t extends number that kinda thing 2021 04 12 vector api record serialization and java 17 release schedule inside java newscast 2 video java 16 vector java 17 short introduction to the vector api incubating in jdk 16 and an update on serializing records also a quick mention of jep 356 in jdk 17 and the proposed release schedule 2021 04 08 java 16 rundown first of java 17 inside java newscast 1 video java 16 java 17 java 16 got released so i go over most of the additions like records stream apis unix domain socket support and much more then there s a first glimpse at java 17 2021 03 25 to jupiter and beyond on an exploratory mission with junit pioneer talk junit pioneer junit 5 community documentation tools junit pioneer gathers junit 5 extensions this talk discusses the technical aspects but also the mission dev practices automatic releases and what twitch has to do with all of this 2021 03 18 definitive guide to java 16 post java 16 a detailed guide to java 16 records type patterns sealed classes stream and http 2 additions unix domain socket support project panama previews packaging tool performance improvements and more 2021 03 16 patterns switch and valhalla s primitive classes jdk news 2 video java next openjdk project amber pattern matching project valhalla project amber brings new patterns and puts them into switch while project valhalla takes off and proposes introducing primitive classes 2021 03 05 code first unix domain socket tutorial post java 16 java s socket channel server socket channel api can use unix domain sockets for faster and more secure inter process communication on the same host 2021 03 03 type pattern matching with instanceof post java 16 java basics pattern matching type patters with instanceof are java s first step towards pattern matching motivation syntax details and future applications here s all you need to know 2021 02 23 pattern matching in java post java basics pattern matching java takes its first steps towards pattern matching but the topic is much larger than instanceof goals terminology flow scoping these apply to all kinds of patterns 2021 02 16 java s quirks and wrong defaults with brian goetz video conversation migration optional serialization mutability nullability serialization primitives nicolai parlog discusses with java language architect brian goetz why java is the way it is 2021 02 11 pattern matching quartet jdk news 1 video java next project amber pattern matching a summary of four recent discussions about pattern matching on the project amber mailing lists 2021 01 26 sorting a react app into java s folder structure post js libraries maven tools how to use react app rewired to sort a react app into a java folder structure with package json at the root and sources in src main test js 2021 01 19 java 2077 post java next project amber project jigsaw project leyden project loom project panama project valhalla the year is 2077 the java version is 128 it s not lts here s how loom valhalla panama leyden amber and jigsaw pushed humanity to the brink and how you can save us 2020 12 10 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 flatmap s 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 java modules cheat sheet post j_ms java 9 java 11 a cheat sheet for building and running java modules from the command line with javac jar and java 2020 10 19 junit pioneer 1 0 post junit pioneer junit 5 testing yesterday we released junit pioneer 1 0 here s a quick rundown of its features 2020 10 07 java generics i the basics video java basics generics first part of a short series on java generics this one explains the basics 2020 04 28 25 hours of java event conversation community on may 23rd 2020 java turns 25 and what better way to celebrate its birthday than with a 25 hour live stream on twitch https twitch tv nipafx 2020 04 20 modularity with oliver drotbohm video architecture conversation j_ms oliver and i discuss modularity in java with a focus on the java module system 2020 04 07 java after seventeen talk java 17 java 18 java 19 java 20 java 21 a live coding talk during which i update a java 11 17 code base to java 21 making good use of new language features additional and improved apis and jvm capabilities 2020 02 05 how we upgraded from java 8 and why you can and should do it too video community migration my two minutes of fame during the oracle code one 2019 keynote 2019 09 18 definitive guide to java 13 post java 13 a detailed guide to java 13 text blocks switch expressions with yield zgc dynamic appcds archives 2019 09 17 improve launch times on java 13 with application class data sharing post java 10 java 12 java 13 performance on java 10 you can use application class data sharing to reduce launch times response time outliers and memory footprint by archiving class data with xshare dump and loading it with xshare on the jvm s class loading workload can be reduced considerably 2019 09 15 definitive guide to switch expressions in java 13 post java 13 java basics switch java 13 finalized switch expressions together with a new lambda style arrow syntax this makes switch more expressive and less error prone 2019 08 16 the jpms maturity model post j_ms java s module system requires consistent support by libraries frameworks and tools this maturity model classifies a project s support for the jpms 2019 08 07 evolving java with enable preview aka preview language features post java next use enable preview plus source or release during compilation to experiment with java s preview features 2019 07 11 definitive guide to text blocks in java 13 post java 13 java basics java 13 introduces text blocks string literals that span multiple lines learn about syntax indentation escape sequences and formatting 2019 06 19 best practices considered harmful talk techniques a lightning talk about how best practices promote a one size fits all mentality that harms our ability to create solutions that are tailored to the problems at hand 2019 06 03 immutable collections in java not now not ever post collections the jdk contains immutable collections but no type immutablecollection here s why that s so and why it won t change 2019 05 29 the java module system with sander mak video conversation j_ms at j fall 2018 i talked to sander mak modularity expert at luminis about the java module system j_ms its adoption how it compares to osgi and more 2019 05 26 caliz iii hashing scripts and background compilation video performance tools letting caliz store native images and only create them for a given java script single source file if needed 2019 05 16 jakarta ee javax and a week of turmoil post community during a week of turmoil many people have written about jakarta ee and javax this post summarizes the community s opinions and gives you plenty of links 2019 05 13 caliz ii wrapping graal aot video performance tools extending caliz to create native images of java scripts single source files with with graal 2019 05 01 caliz i wrapping jvm 11 and learning about graal aot video performance tools first steps toward an acceptable scripting experience with single source file execution and graal native images 2019 04 18 definitive guide to java 12 post java 12 migration detailed java 12 guide migration versions switch expressions teeing collectors indenting transforming strings and more default cds shenandoah g1 2019 03 18 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 java 12 experiments live stream video java 12 in my first live stream ever yay we explored java 12 s api improvements 2019 02 24 utilities singletons and dependency injection effective java items 3 5 video book club patterns mildly surprising to me it makes sense to discuss these three patters in one video so here it goes 2018 11 27 eleven hidden gems in java 11 post java 11 eleven small but shiny additions in java 11 to classes like string path files collection optional and others that make coding a little more elegant 2018 11 12 fun with var talk core lang default methods generics lambda java 10 var a live coding talk where i show off all you need to know about var in java and then some 2018 11 08 scripting java 11 shebang and all post java 11 tools on ramp on java 11 you can run a single source file without compiling it beyond experimentation you can write scripts this way even shebang is supported 2018 11 06 maven 3 4 5 with robert scholte video conversation tools maven is one of the cornerstones of the java ecosystem here i talk with robert scholte chairman of the apache maven projects 2018 10 24 reactive http 2 requests and responses in java 11 post java 11 with java 11 s new reactive http 2 api request and response bodies can be handled with reactive streams you can throttle stream and cancel early 2018 10 22 first contact with switch expressions in java 12 video java 12 switch with java 12 switch is no longer just a statement but becomes an expression let s take a look 2018 10 18 java 11 http 2 api tutorial post java 11 java basics 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