Fabio Niephaus
@fniephaus
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Research Manager on the @GraalVM team at @OracleLabs. Dev tools, languages, VMs. Previously at @HPI_DE, @GoogleColab, and @MatonGuitars. Views are my own.
Potsdam, Germany
Joined July 2009
Learn how you can use #GraalPy, #GraalJS, and #GraalWasm to spice up your @Java applications with the power of other language ecosystems and @GraalVM! Demos at
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@kdhrubo @graalvm @shaunmsmith @timfelgentreff I can't find a package called "dockling", and it's hard to tell what's going on without more details. Could you please file a ticket at so that we can take a look?
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If you are at #Jfokus, feel free to swing by our booth and say hello! Join our session tomorrow for some fun #GraalPy demos.
Good morning, #Jfokus! Meet @shaunmsmith, @fniephaus and @timfelgentreff to ask all your GraalVM & GraalPy questions!🚀
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@starbuxman @RichardFichtner @JohanHutting @XDEVSoftware @graalvm Ha! Too bad someone fixed the symptoms faster than we fixed the cause... we are still working on incremental builds though! 🤓
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We are looking for interns interested in compilers, language runtimes, and developer tools! Feel free to reach out if you have any questions. 🙂
Are you looking for a summer internship?👨🎓 Join our team on a mission to make all languages fast, and developers all over the world more productive! Learn more and apply:
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@Rattlyy @grashalm_ @graalvm PGO is also available in Oracle GraalVM, the predecessor of GraalVM Enterprise Edition. "Oracle GraalVM is free to use in production and free to redistribute, at no cost, under the GraalVM Free Terms and Conditions":
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RT @alina_yurenko: Look who is there in Early Majority in @InfoQ's Java Trends — @GraalVM😎🐰, accompanied by GraalPy & GraalWasm in Innovat…
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@Rattlyy @grashalm_ @graalvm With PGO, you may match, if not even beat performance on the standard JVM. Also, the native image should include Graal for JIT compilation of the JavaScript code by default.
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Great tool, powered by #GraalJS and Truffle! 🤓
🌐 Create #HTTP requests directly from #OpenAPI files – right in #IntelliJIDEA's built-in HTTP Client (open via Tools). As you type, the IDE provides the URL and request body completion based on the OpenAPI specification. 👉 Learn more: #IntelliJIDEATips
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@thejvmbender @graalvm The current version already ships in the latest EA builds of Oracle GraalVM. You can try it out by adding '-H:+JDWP ' as a build arg for Native Image. Keep in mind this is work in progress through. We'll add docs before promoting it more. 😉
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@smarr Surely, the GraalVM builder can also run on Espresso. So I see why you want to count distinct implementations. 😉 #TheMoreYouKnow
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Had some fun with @eMalaGupta on the @intellijidea livestream today! 🙂🙏
A huge thanks to @fniephaus for an incredible session on GraalVM and GraalPy in #IntelliJIDEA! And thank you to everyone who joined our livestream. Missed it? Watch the recording here 👇
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@intellijidea Thanks a lot for the invitation! 🙂 🙏 Happy to answer any further questions, please feel free to get in touch!
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@MCtech_Ringo @graalvm @intellijidea That's because we have reached "Rampdown Phase One (branch from main line)" on Dec 5, 2024 (see below), and consequently, the GraalVM main branch was bumped to JDK 25.
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RT @intellijidea: 💻 Want to supercharge your Java applications? Join us for the next #IntelliJIDEAlivestream, where @fniephaus will show ho…
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@smarr @TruffleSqueak @graalvm Not really unfortunately. We have students implement the Lox language using the Bytecode DSL. Smalltalk interpreters are not too hard to implement, so I might do it yet another time, using the DSL for comparison. 😉
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