Java Icon

Java

Java is an object-oriented programming language used mainly for desktop and mobile applications.
7 Stories
All Topics

Databases github.com

A NewSQL relational database designed to process time-series data, faster

Our approach comes from low-latency trading; QuestDB’s stack is engineered from scratch, zero-GC Java and dependency-free. QuestDB ingests data via HTTP, PostgresSQL wire protocol, Influx line protocol or directly from Java. Reading data is done using SQL via HTTP, PostgreSQL wire protocol or via Java API. The whole database and console fit in a 3.5Mb package. According to the great knowledge base in the sky, NewSQL is, “a class of relational database management systems that seek to provide the scalability of NoSQL systems for online transaction processing workloads while maintaining the ACID guarantees of a traditional database system.”

read more

Security ghidra-sre.org

Ghidra – The NSA's suite of reverse engineering tools

It’s not fully open source yet, but there’s a placeholder repo which states: Be assured efforts are under way to make the software available here. In the meantime, enjoy using Ghidra on your SRE efforts, developing your own scripts and plugins, and perusing the over-one-million-lines of Java and Sleigh code released within the initial public release.

read more

Bitcoin github.com

Square's Bitcoin cold storage solution

Why cold storage? Because security: For security purposes, Square stores a reserve of Bitcoins in an offline setting. By having these funds offline, we reduce attack surface and hence risk of theft. Square can move the funds offline at any time, but moving them back online requires a multi-party signing ceremony. They can also embed programming logic into the cold storage modules, so that only Square-owned addresses can receive the funds. That’s defense-in-depth, right there. Bitcoin’s latest bull run is over, but those who believe in decentralized money continue to toil away… building the future they want to exist.

read more

Mihai A amihaiemil.com

Dolls and maquettes (a metaphor about why model objects are evil)

A visual explanation on why model objects are not a good practice in object-oriented software. It is explained that a developer’s job should be the one of an engineer, instead of the one of a manual worker (I would say even the one of a puppeteer, but I don’t like the rhyme); objects should be alive and have behaviour of their own rather than being mere models surrounded by tools, artificial ways of making them act as if they were alive.

read more

Netflix Technology Blog Icon Netflix Technology Blog

Open sourcing Zuul 2

Netflix open sourced their cloud gateway: The Cloud Gateway team at Netflix runs and operates more than 80 clusters of Zuul 2, sending traffic to about 100 (and growing) backend service clusters which amounts to more than 1 million requests per second. Pretty impressive. Click through to get the details of how Zuul 2 works and how they use it inside Netflix. I love when companies who are operating at webscale (😏) share their practices and code with the rest of us.

read more

Yegor Bugayenko yegor256.com

How I test my Java classes for thread-safety

Yegor Bugayenko: Thread-safety is an important quality of classes in languages/platforms like Java, where we frequently share objects between threads. The issues caused by lack of thread-safety are very difficult to debug, since they are sporadic and almost impossible to reproduce on purpose. How do you test your objects to make sure they are thread-safe? Here is how I’m doing it. Great details on a particularly difficult aspect of testing. ✨

read more

0:00 / 0:00