Java

“I've been using Claude on a very large Java protocol proxy product”

“It's around 50K lines of Java, one of our engineers did it in his spare time over about a week”

“I cleaned out the Java and Octave support I wasn't using anymore.”

“Java did have a concurrent mark-and-sweep collector at one time, but we removed it some years ago”

“I have a Java application that relies on ImageMagick”

“I remember using findbugs with Java around 2004.”

“The workflow was implemented as a fully asynchronous Java application”

“I've worked on medium-sized desktop Java apps (a few hundreds of thousands of lines of code)”

“we migrated one of Denmark's most used Android apps with one million lines of code powered by Java threads, into Kotlin coroutines”

“when we switched from Ada to Java I had to show ROI”

“We use both Claude and Codex on a fairly large ~10-years old Java project”

“flinging java, docker and a few other things onto a build agent isn't the time-consuming part of maintaining CI infrastructure”

“We instrument Python, Node/TS, and Java to record deep context into a circular buffer.”

“we do benchmarking of the whole Java app in the container running async-profiler into pyroscope.”

“Often you need to switch JDKs even within a single project, more often with several projects.”

“After we moved to Java everything standardized of a set of FOSS libraries for various things.”

“When Java became good enough, we switched to Java.”

“Mainly writing in COBOL and Java (in USS)”

“In school, after learning OOP in Java we switched to web dev and learned javascript and php.”

“We switched completely to AWS Corretto and told our IT department to remove all Oracle/Sun Java and ban the downloads.”

“Even a bit later doing Java monoliths I could spin up the whole app on my local and debug in the IDE.”

“I primarily work in Java”

“about 10 years of Java/C++/Rust/Python under my belt (focused on Financial Market applications)”

“We migrated from Asm to C. And C to C++, then to Java. And then Java to Python.”

“This goes back to when I learned Java in college, second year”

“for java projects.”

“We moved the content generation from J2EE to java lambas and our costs went from $6K/month”

“than I wrote in an environment like Java with tons of threads.”

“keeps Java classes much more concise to read”

“I first learned Java in 1997 and have been using it professionally since 2005.”

“I chose to use Java's built-in XML parser to parse the template.”

“We use Java as syntax language and write everything from scratch, even the data structures”

“especially since we run thousands of individual JVMs”

“Our code was in Clojure, and we just wrapped the Java client.”

“this is my experience coming from Java, Node, and Python”

“had prior exp in php, python, java, Go, and Typescript, and enjoyed most of them”

“remember using anonymous interfaces to pass a function around in java?”

“We used to download jar files over the net. Running a major prop trading platform meant 1000s of dependencies.”

“I took a job at a Java shop, having never touched the language previously, and then within just a few short months”

“I write Java code, but I never really need to maintain any.”

“I have a mid-sized application I built on 17 that's used to deliver a particular project, really looking forward to finish the project so I get to move to 21”

“We used to have a piece of Java software called Scout - it did a lot of small memory allocations”

“I went from Basic to Pascal to C/C++ to Java to Python which bear more than a passing resemblance to one another.”

“So we built our own profilers. It's nice that with NFTC, Oracle allows you to use JFR in production from Java 11 onwards.”

“Personally I have been using direct buffer since 1.4, so I guess I am also quite used to them as well.”

“we run the same logic in a Java service, Java client, Python client”

“we were running Netscape's iPlanet web server on an IBM JVM (on IBM's AIX)”

“Version 2, which is nearly done, is a simple Java app with a web view.”

“We switched from Java to Elixir and the change has doubled our productivity.”

“Of course we run a massive footprint of 0.5m - 0.75m JVMs.”

“we will keep their ancient php and Java running for 25-50k/mo (few hours work per year to do that with Docker)”

“I recently launched a startup, we use Java, some Python and even a little bit of Rust.”

“I think we moved to J11 a few years ago, and IIRC J17 in 2022, and didn't hit any issues other than some dependency versions.”

“I work on moderate sized async reactive pipeline with lots of CompletableFutures throughout”

“for the rewrite was easy to reuse the java libraries when we moved to java”

“We run a Java stack and VisualVM is something I should be able to download without all the hoops.”

“We tried dev test staging and prod first in the 90s when internet arrived with cgi-bin and later Java, but it was too much hassle”

“We use relatively new Java, branches everywhere, microservice architecture, +85% branch coverage, integration tests, end-to-end”

“This is our first experience generating docs for a single project that spans C, C++, Python, Java, and GoLang”

“At my last job we switched from Java to Clojure and found that similar types of projects were much faster to develop”

“All the app-tier servers (Java) ran Linux.”

“I've been using Java on and off since 1996.”

“a set of services which were written in Java and NodeJS”

“I've spent most of my career with perl, python, c#, and java”

“I've worked in two startups, one sold for $600M and one sold for $200M and both were Java based”

“It's Java for stuff that doesn't need to be fast, C++ for stuff that needs to be fast, and Go for random stuff”

“When we moved to python/Java we could stop worrying about managing memory.”

“I inherited an old java project where all routes were defined in web.xml.”

“A monstrous jsp page, of 13k lines IIRC, once traspiled to pure java hit the max length for a class method, 65535 bytes.”

“Fortunately our log4j was too old and JVM too young to be vulnerable to the first exploit”

“I´ve worked with rake tasks when using ruby, and many times in java, with flyway and my own system.”

“Our entire deployment stack is Java/Python on Linux.”

“We have a mixture of python, java, go, protobuf, and node.”

“Polyglot? Yeah, fair, but we're an almost entirely JVM shop.”

“I've been using this set up in both VSCode for Rust and Java in IntelliJ.”

“The tech stack is pure java with a kernel of C++ for networking”

“We run all our production applications on JDK17 too, which is why I push to run everything on 17.”

“a bunch of random workloads using docker, exec, raw_exec, java, and some in-house drivers”

“We run it on an i7 machine at my house dedicated to it... we can use more modern Java 16 runtime”

“We switched to vaultwarden from a much older Java+Flash based credential manager where I work”

“We use Json in our Python projects and Avro in our Java projects.”

“I've used all of these languages”

“The code base I'm talking about is Java 10 years ago.”

“The backend team has gone from DIY php to symphony then to java and finally to kotlin.”

“I have scores of company-specific programs on my laptop. They're all either Java or .NET”

“We've been working with clojure/java/react/typescript.”

“we migrated everything to Java using VA for Java and early Websphere.”

“It ran as a Java applet in the browser with Asterisk on the backend”

“have been using Java full time throughout”

“we did find ourselves switching to Java when we were trying to squeeze as much performance out of something as we could”

“At my day job, all the stuff we put in Docker is either Python (generally portable), Java (generally portable), or Go”

“the only thing we need is the base distro and the the vendor binaries ... and probably an old ass version is JDK”

“I am running an old EPR, an old database, an old Java app, or some other legacy system.”

“the only language of the 13+ I've used in production code”

“some other task there was a java executable that worked the best so I called it from PHP”

“managing 30+ .p12's for each individual java service that needs to talk to an external api via mtls”

“you can express your rules in plain Java, which anybody with an imperative programming background can figure out”

“my team is all Java developers and we decided to go with Java and Spring Boot few years back for all our microservices.”

“my employer's ecosystem is entirely built around having java applications. We moved to kube and that has eased a bit; however, we're all java developers.”

“we're running most our Apache TomEE and Tomcat applications in prod on a 64m or 128m heap”

“patches for new browsers on the front end and new Java app servers on the back end”

“HP machines hosting RHEL VM's running TIBCO, JAVA and Cassandra”

“placed classes into the system class loader because we couldn't unpack and repack the war.”

“Coming from Java, Kotlin, C#, Python I first thouhgt Go was a bad joke”

“it had a complete API in Java so we didn't actually need to touch the kdbs”

“I have built apps in native iOS (pre-swift), Android (Java), windows phone (c#)”

“The 1 million line ancient Java monolith at work pulls in less libraries, by count and space then create-react-app.”

“Java with servlets, J++ (the Microsoft "embrace, extend, extinguish" version of Java.”

“I can DoS it with a single java client running 50 threads.”

“I worked on a Java project at Google and Emacs worked fine.”

“We needed to do it incrementally from a server side rendered Java application”

“We migrated to Java 11 during the fall and finally most third party libraries we use seems to work fully in Java 11.”

“We have a Java + Mongo stack and recently we had an issue in prod”

“This is after we switched to Go from Java where these same people did some of the same things.”

“They force-upgraded the java version. The problem was their their own libraries didn't work with the new version”

“We use getopt style command line parameter parsing in at least Java, Perl, Python, and BASH at work”

“The peaky process will be killed for OOM by Linux; ... For context, at steady state the services consume about 2GB”

“I used both Java and Go in production and yes Go can be faster or Java it depends”

“We switched to compile Java with Bloop because it is orders of magnitude faster”

“R is unlike any other programming language that I have used before (also on an off) from Perl, C to Python and Java”

“As an engineer that's written a lot of (old-skool) JS, Java, Obj-C, C++, and PHP”

“After we switched from java 6 to 8 a handful of devs including myself went overboard modeling problems to be solved with streams API”

“We need to have a standard writing code in Java and AutoCloseable is the way to go.”

“We also have some Java apps for serving normal ALS or Annoy based models.”

“( i already know java )”

“Consider a common case in any java application at my current place of employment.”

“There had been some Java, but we had a bad interaction with Sun Microsystems (at the time) and our CEO came down hard”

“I've jumped b/w .net and Java and very comfy with Linux.”

“I wrote a copying collector against a KV store in Clojure that I ran in prod for a while, though I swapped it out for a generational mark and sweep in Java.”

“My team used to be a Java shop, and we switched to Clojure about a decade ago.”

“When we switched from Java to Go in my department it was a team decision.”

“I did a lot of Java, and I never again felt as dialed in to those languages as the late 80s C”

“new processes were written in java (jbpm to be specific)”

“We use Java and I wanted to show a better alternative to its nulls and exceptions”

“We use Eclipse Vert.x and every plugin is written in java.”

“We run major projects in production written entirely in Play Java.”

“I've worked with Java for close to a decade, then used Haskell for about a year”

“our data pipelines are in Python, Java and Scala”

“been doing it for a couple decades (first java, then flash adapters or hidden frames, then xhr)”

“we are a full java shop”

“For workers we run only Java and run everything on AWS.”

“We run all Java so that is a no go and at the scale I'm talking about”

“I was a java back-end developer on a major EU gambling site for a year.”

“I have not used Java in many years now, but I'm curious if anyone has anecdotal experience using OpenJDK in production?”

“The guy rewrote the java.lang.string, the java.lang.date, and some other base classe of the language”

“Worked with static typing for about a decade primarily with Java in the enterprise.”

“we migrated one of our Java backends to TypeScript/Node, and made the code 40% lighter”

“most of which use Golang, some Python and Node and Java.”

“I love functional programming, and actually work in Clojure at my job, we switched from Java.”

“We have a custom service that requires a Java jar that plugs into an application server.”

“we've only been able to find developers experienced with Java EE, some who've mainly used Java 6”

“We use the mbean API to get the memory and CPU usage of the current thread.”

“We switched them from a combination of Perl sites and Java sites from Java / ATG Dynamo 10+ servers”

“Eventually new stuff got written in Java and we migrated off of it due to the hiring pipeline mostly”

“Most of our code is written in Java.”

“we haven't replaced that either.”

“Worked with static typing for about a decade primarily with Java in the enterprise.”

“to get an ancient Java application working under Linux 2.4”

“I have put Java/Scala/Go/Erlang systems in production, and rarely have I have ever had to worry about GC tuning.”

“When you limit the memory of the java process it will be a _lot_ lower.”

“we've switched to Kotlin from Java a little over a year ago with great results.”

“I did it with a C++ / Java interface, never again.”

“When I write java, I can't run maven in prod and expect it to get native libraries”

“We run java + clojure in Docker and we do it so that we can connect all of the dependencies together with Docker-compose.”

“I got an employer off Java 6 just two weeks ago.”

“All the development we do ourselves is on .Net core, Java or Python”

“we've migrated most of our original Java spring/rest projects to be in Kotlin.”

“pipe updates to a java/node app which then would write updates via the web socket interface”

“The stack was a combination of PHP mixed with Java and shell scripting.”

“I was a Java programmer for over a decade before learning Objective C right after ARC came on the scene”

“how much shorter Rust code is than our corresponding Java”

“Java developer for about 10 years.”

“we can now give our Windows-using developers the same Java on their PCs that we run on the live Ubuntu 14.04 servers.”

“I've been using statically typed languages for 20 years (C++, Java, Objective-C)”

“I write some Java programs for my employer. I just use the SDK/JDK.”

“I've been using Java on Linux in production for more than 7 years and have never had any problems associated with the OS choice.”

“We use mostly java, swift, and JS (Angular 2)”

“Learned C# in order to rewrite an app I wrote in Java”

“We use Lombok on all our Java services and have never had an issue”

“we switched focus to become mostly a Java/.NET shop around 2006.”

“Many of our enterprise systems are Java-based”

“We have a lot of Java native interface code we run.”

“I have come across quite bad C codebases, poor Perl applications and terrible Java code”

“We don't have a complete understanding of why this app uses so much more codecache than other apps we've switched to Java 8.”

“Bitbucket allows unlimited repositories which is far far better for our workflow (Java + Maven)”

“We run a fairly standard java/MySQL web app, with paid silver support.”

“At work I deal with Java code, but we have a framework we wanted to use that's written in Scala”

“we rewrote them as plain, no framework, no ORM, Java and Javascript.”

“We switched from the Oracle JDK to OpenJDK a couple of months back and it's going fine.”

“We were Python, Java, and Go and all were terrible.”

“It takes maybe 2 days to learn everything in the language if you already know Java”

“Pretty good after plain java.”

“We used to be constrained by Java 32-bit since 64-bit was slow so coded for that range.”

“Those of us that do use it, are fully aware that it is a hack”

“I don't even mind Java anymore because the CLASSPATHs can be figured out once, documented in the Dockerfile”

“Scala is replacing Java at Monsanto”

“and a bunch of custom python, java, and javascript code.”

“I'm mostly C/C++/Java/Clojure/Matlab”

“I'm used to C# and Java, where dependencies are always dynamically linked”

“I figured that I already knew Java”

“I switched the coding from COBOL to VB4 and Oracle and then Java”

“The Java backend has DTOs (data transfer objects) that are mapped by Jackson to json”

“counting Java bytecode has worked for us so far.”

“I don't know how much time I wasted debugging or optimizing Hibernate-stuff in Java”

“I've been coding for over 30 years now (Basic, ASM, C/C++, Java, Python, PHP, JS, Clojure)”

“We maintain legacy code that has been in production for more than 8 years and write new fully unit and integration-tested code in Groovy/Grails, Ruby/Rails, Java, and Angular.”

“I worked at a Fortune-5 company for close to 10 years on a mix of technologies; java being one.”

“I maintain 2 semi-big Play 2 web services (written in Java, not Scala) at work”

“I work for a company that has been using Java since probably 2002/2003 (I joined in 2012).”

“We moved things to Java as and when we needed to.”

“Inbox uses lots of components and shared code across the company that are based on Java.”

“We are using Clojure on top of existing Java functionality”

“We're primarily a Java shop and Clojure was appealing because it allowed us to leverage the existing ecosystem, tools, and libraries that we were already using.”

“most Java libraries do not have non-nullable annotations. So, even if e.g. method arguments should never be null, they are presented as nullable.”

“having been on the Java bandwagon for a long time.”

“The software my team works on at work is java based”

“I taught myself C, C++, BSD sockets, Java, and OOP all for it”

“the main business software is a Java webapp that is less than 10 years old”

“The service exists as a bunch of Java and Python scripts running on data sets in zip files.”

“We switched away from Java for most new development a while back already.”

“Haxe, git, mercurial, FlashDevelop, Java, etc...”

“I have been building GUI applications with Java and Swing for some time.”

“A minor demerit was getting SBT and Play Java to work correctly in IDEA”

“I just trying to compare with my current stack spring mvc 3, spring data mongodb.”

“I've been playing around with a Java project recently.”

“Coming to Scala from experience including C, Java and Haskell”

“For the backend, we use Java - backed REST-like services.”

“Where I work we have a product that runs java on the server but requires IE as the browser.”

“you can run in on your desktop as a regular Java application”

“As late as 2010 I was working on a J2EE app trying to migrate it to Java 5.”

“Languages: Ruby on Rails, Obj-C, Java. We run on Asterisk and are hosted by RackSpace.”

“then got into web development via Java (day job)”

“We run a fairly complex java system in the same process as play (similar to an in-process database) for performance reasons”

“We do mostly Java so Apache was not the problem there, as it was simply proxying over to Jettys.”

“I know we've run out of PermGen with the JVM set to anything less than 192mb.”

“We run web services and the like all in combinations of C, RPG, JAVA, embedded SQL, and such.”

“we mandate (and enforce with scripts/hooks) that all .java file contain only ASCII characters. We use properties file (whose encoding is defined)”

“such as C++/Java/Javascript/Perl/Python. I found that if I use them in my work, I would become good at them”

“has used Play 1 and 2 in both Java and Scala for side projects”

“Classic first year CS student classwork (although we did Java not ObjC).”

“the main website is made fully with Java.”

“even though at work we use Java and Ruby”

“We use Clojure for our startup - we occasionally drop down to Java for some libraries”

“we are in the Java space, so mostly enterprise stuff”

“I even wrote an authentication reverse proxy[1] in java in my spare time”

“each deployed as a WAR file since the non-Node.js part of the site is on the JVM. There's a lot of overhead that comes from deploying this way.”

“I work at a company in Chicago where we run our sites and apps on either Java, PHP, or Ruby.”

“java EJB3 beans wrapping these xml files, java classes for DTO”

“We use Java on the server, so we're looking at Closure Templates”

“the only downside was that it was written in Java... that is another vm to install and maintain”

“we don't need to re-invent the module system in JS (we use Java package).”

“When I had learned about it in Java, I had assumed that an object system was inherent in a language.”

“My CS degree was wholly based around java and I regret not forcing myself to learn pointers, memory management and functional programming.”

“We developed some software first in other languages (Java, Scala, Python), usually to make a prototype”

“For the same reason we use Java, C++, Scala, Perl, Closure, Bash, JavaScript, etc...”

“We run JVM instances for months between releases.”

“I wrote the moral equivalent of ChromeOS (although using eCos as the underlying task scheduler and some of the original Java VM as the UI implementation.)”

“after many years on Java and web programming”

“We've migrated some key parts out to HTTP services written in Scala, Java, or node.js.”

“I was hired right after graduation thanks to my 'mad' java skills”

“relearning how to do all my processes (compiling and testing java, running tests and see their results”

“performance we got on Java server and PHP/iOS client was pretty poor”

“We use Java, MongoDB, Hadoop and embedded Jetty at MetaBroadcast”

“Been using CF for 10 years, Java for 5.”

“We're a Java house and just launched ... using the Play Framework.”

“I've been using Java for 10 years+, and never used any of that.”

“Most of what I have done has been using Java”

“major languages we use like PhP, Python, Ruby, Java”

“my main project is still in Java: it's often difficult to mix languages at the same level in a project”

“The Java guys wrote something to generate their model from it”

“I spent years in Java prior to Ruby and through the various frameworks in Java, I never remember making the mistake”

“plus a mix of Java, Ruby, Python, and whatever else will get the job done.”

“we are Java developers from a good deal of the team”

“all our AI is in a separate Java service”

“would switch to FreeBSD 8.x if the Java support was better.”

“For better or worse I am tied to Java on the server side.”

“Having learned C, Java, SQL, Common Lisp, and Scheme on my own”

“I program in Java every day... I work on a big enterprise project like the article mentions”

“Instant access to Java libraries means it isn't just about academic beauty.”

“we run 200 websites, and 194 of them are written in PHP (1 is Java, 2 are .NET, 1 Ruby, 2 Coldfusion)”

“We've had slowness in both Java and Python”