Monica Beckwith joins Robert Blumen for a discussion of java garbage collection. What is garbage collection? GC algorithms; history of GC in the java language; fragmentation and compaction; generational strategies; causes of pauses; impact of pauses on application performance; tuning GC; GC on multi-core and large memory machines; should production servers be implemented in non-GC languages?; going off heap and other programming techniques to avoid garbage; the future of java GC.

Felienne talks with Moshe Vardi about P versus NP. Why is this problem so central to computer science? Are we close to solving it?  Is it necessary to solve it? Progress toward computing hard problems efficiently with SAT solvers.  How SAT solvers work,; applications of SAT like formal verification.

Nate Black talks with Nicolai Parlog about Java 9. Topics include: a timeline of Java features; new patterns enabled by Java 8 lambdas, default interface implementations and how they enable code evolution; how Java 9 takes this further with private default methods; an introduction to Java modules: the Java Platform Module System (JPMS); “launch time” dependency validation; module “requires” and “exports”: documentation as code and a new topic for code reviews; how to migrate an existing codebase to Java 9 and modules; benefits of Java modules: reliable configuration and a smaller Java runtime; the new Java release schedule.

Dmitry Jeremov and Svetlana Isakova speak to Matthew Farwell about the Kotlin programming language.

Natalie Silvanovich and Kim Carter discuss reducing the attack surface of the software that Engineers are creating today. Code sharing, third-party code, Developer workflow, and a collection of 0 day bugs are all discussed.

Felienne interviews Marian Petre & André van der Hoek on their book ‘Software Design Decoded’, which contains 66 scientifically backed insights for the design process.

Edaena Salinas talks with Maria Gorlatova about Edge Computing. Maria Gorlatova is an Associate Research Scholar at Princeton University Department of Electrical Engineering. The discussion covers: IoT, edge computing, the architecture of edge computing, running a machine learning model on the edge, and the benefits of edge computing.

István Lam of Tresorit talks with host Kim Carter about GDPR (the EU General Data Protection Regulation, which has been described as “the most important change in data privacy regulation in 20 years.”)  The discussion covers terminology, planning, implementation, users' rights regarding their personal data, managing personally identifiable information (PII) across an organization, and required documentation. István talks about establishing the intent of different types of PII; when data can be shared or sold, when PII can be stored; storage of backups, and the ability to reveal, modify, or remove all of a customer's PII.

Simon Riggs, founder and CTO of 2nd Quadrant, discusses the advanced features of the Postgres database, that allow developers to focus on applications whilst the database does the heavy lifting of handling large and diverse quantities of data.

Joel Spolsky on founding Stack Overflow, “land grabs” vs. “bootstrapping with profitability”, raising more money using “proof points”, what developers and companies get massively wrong, choosing your next job, and how to ask and answer on Stack Over

Motivation comes through relationships, safety, and environments which allow everyone to contribute.

Evan Gilman and Doug Barth, authors of Zero-Trust Networks: building secure systems in untrusted networks discuss zero-trust networks.

Katharine Jarmul of DropoutLabs discusses security and privacy concerns as they relate to Machine Learning. Host Justin Beyer spoke with Jarmul about attack types and privacy-protected ML techniques.

Rich Harris, author of the JavaScript module bundler Rollup, discusses his JavaScript framework Svelte as a high-performance alternative to mainstay frameworks like React, Angular, and Vue. We begin with a brief overview of the framework and how...

Juval Löwy, Software Legend and Founder of IDesign discusses his recently published book, Righting Software, with host Jeff Doolittle. This episode focuses on Löwy’s belief that the software industry is in a deep crisis, evident from the numerous...

Evan Weaver of Fauna discusses the Fauna distributed database. Host Felienne spoke with him about its design and properties, as well as the FQL query language, and the different models it supports: document-based as well as relational.

Rowland Savage, author of How to Stick the Landing: The M&A Handbook for Startups, discusses how company acquisitions work, the three types, and why it is so important for software engineering startups to know the details to make an acquisition happen.

Trisha Gee and Kevlin Henney of 97 things every Java developer should know discusses their book, which is a collection of essays by different developers covering the most important things to know. Host Felienne spoke withGee and Henney about all things...

Networking researcher Iljitsch van Beijnum discusses internet routing and the border gateway protocol (BGP) with host Robert Blumen.

Vaughn Vernon, author of the book “Strategic Monoliths and Microservices” discusses his book with host Akshay Manchale about strategies for purposeful architecture from the perspective of both business decision makers and technical leaders.

Kevin Hu, co-founder and CEO at Metaplane discusses "Data Observability" with host Priyanka Raghavan. The discussion touches upon Data observability roots, components, differences with software observability and tooling.

Vandana Verma, Security Leader at Snyk and vice-chairperson of the OWASP Global Board of directors, discusses the "OWASP top 10" with host Priyanka Raghavan. The discussion explores various subtopics such as the history behind OWASP, the OWASP top 10 security risks, example of common vulnerabilities and ends with information on top projects in OWASP and how can contribute to it.

Andy Dang, Head of Engineering at WhyLabs discusses observability and data ops for AI/ML applications and how that differs from traditional observability. SE Radio host Akshay Manchale speaks with Andy about running an AI/ML model in production and how...

We talk with John deVadoss about the philosophies underlying the development of .NET and Azure software. We discuss the "Fiefdoms and Emissaries" concept of building loosely coupled systems, talk about strengths and drawbacks and how to build services...

In this episode, Varun Singh, Chief Products and Technology Officer at Daily.co, speaks with host Nikhil Krishna about the 30-year evolution of web protocols. In particular, they explore the impact of protocol ossification, which has supported the Internet’s success but also limits the flexibility of evolving protocol suites such as TCP/IP and UDP by constraining future development. Varun points out how the end-to-end principle emphasizes full flexibility for end hosts, but the TCP implementation in the OS kernel as well as in “middle boxes” such as ISPs contributes to the constraints of ossification by blocking certain types of traffic. Further, the development of new protocols is challenging due to the need for backward compatibility with existing protocols. They discuss Google’s efforts – and the challenges it has faced – in working to move the HTTP protocol forward. The role of standards bodies such as the IETF and collaboration between industry stakeholders is crucial for the evolution of internet protocols, requiring a balance between maintaining backward compatibility and introducing new protocols such as QUIC and HTTP/3 to address existing constraints and improve internet performance and security. indeed, QUIC includes features that seek to actively avoid ossification and encourage evolution.

Nir Valtman, co-Founder and CEO at Arnica, discusses pipelineless security with SE Radio host Priyanka Raghavan. They start by defining pipelines and then consider how to add security. Nir lays out the key challenges in getting good code coverage with the pipeline-based approach, and then describes how to implement a pipelineless approach and the advantages it offers. Priyanka quizzes him on the concept of "zero new hardcoded secrets," as well as some ways to protect GitHub repositories, and Nir shares examples of how a pipelineless approach could help in these scenarios. They then discuss false positives and handling developer fatigue in dealing with alerts. The show ends with some discussion around the product that Arnica offers and how it implements the pipelineless methodology.

Nikhil Shetty, an expert in networking and distributed systems, speaks with SE radio's Kanchan Shringi about virtual private cloud (VPC) and related technologies. They explore how VPC relates to public cloud, private cloud, and virtual private networks (VPNs). The discussion delves into why VPC is fundamental to building on the cloud, as well as configuring a VPC, subnets, and the address space that can be assigned to the VPC. During this episode they look into route tables, network address translation, as well as security groups, network access control lists, and DNS. Finally, Nikhil helps compare VPC offerings from Amazon Web Services (AWS) and Oracle Cloud Infrastructure (OCI).

José Valim, creator of the Elixir programming language, Chief Adoption Officer at Dashbit, and author of three programming books, speaks with SE Radio host Gavin Henry about what Elixir is today, what Livebook is, the five spearheads of the new machine learning ecosystem for Elixir, and how they all fit together. Valim describes why he created Elixir, what “the beam” is, and how he pitches it to new users. This episode examines things you can do with Livebook and how it is well-aligned with machine learning, as well as why immutability is important and how it works. They take a detailed look at a range of topics, including tensors with Nx, traditional machine learning with Scholar, data munging with Explorer, deep learning and neural networks with Axon, Bumblebee and Huggingface, and model creation basics. Brought to you by IEEE Computer Society and IEEE Software magazine.

Yeckezkel Rabinovich, CTO of Groundcover, speaks with host Philip Winston about observability and eBPF as it applies to Kubernetes. Rabinovich was previously the chief architect at the healthcare security company CyberMDX and spent eight years in the cyber security division of the Israeli Prime Minister’s Office. This episode explores the three pillars of observability, extending the Linux Kernel with eBPF, the basics of Kubernetes, and how Groundcover uses eBPF as the basis for its observability platform.

Llewelyn Falco, creator approval tests, talks with SE Radio host Sam Taggart about testing code in general and the various types of testing that developers perform. Llewelyn elaborates on how approval tests can help test code at a higher level than traditional unit tests. They also discuss using approval tests to help get legacy code under test. This episode sponsored by Data Annotation.

Phillip Carter, Principal Product Manager at Honeycomb and open source software developer, talks with host Giovanni Asproni about observability for large language models (LLMs). The episode explores similarities and differences for observability with LLMs versus more conventional systems. Key topics include: how observability helps in testing parts of LLMs that aren't amenable to automated unit or integration testing; using observability to develop and refine the functionality provided by the LLM (observability-driven development); using observability to debug LLMs; and the importance of incremental development and delivery for LLMs and how observability facilitates both. Phillip also offers suggestions on how to get started with implementing observability for LLMs, as well as an overview of some of the technology's current limitations. This episode is sponsored by WorkOS.

Jonathan Horvath of Z-bit discusses physical access control systems (PACS) with host Jeremy Jung. They start with an overview of PACS components and discuss the proprietary nature of the industry, the slow pace of migration to open standards, and why Windows is commonly used. Jonathan describes the security implications of moving from isolated networks to the cloud, as well as credential vulnerabilities, encryption using symmetric keys versus asymmetric keys, and the risks related to cloning credentials. They also consider several standards, including moving from Wiegand to the Open Supervised Device Protocol (OSDP), as well as the Public Key Open Credential (PKOC) standard, and the open source OSDP implementation that Jonathan authored.

Brought to you by IEEE Computer Society and IEEE Software magazine.

There are a lot of libraries for processing XML data with Java that can be used to read RSS feeds. One of the best is the open source library XOM created by the computer book author Elliotte Rusty Harold.

As he wrote one of his 20 books about Java and XML, Harold got so frustrated with the available Java libraries for XML that he created his own. XOM, which stands for XML Object Model, was designed to be easy to learn while still being strict about XML, requiring documents that are well-formed and utilize namespaces in complete adherence to the specification. (At the RSS Advisory Board, talk of following a spec is our love language.)

XOM was introduced in 2002 and is currently up to version 1.3.9, though all versions have remained compatible since 1.0. To use XOM, download the class library in one of the packages available on the XOM homepage. You can avoid needing any further configuration by choosing one of the options that includes third-party JAR files in the download. This allows XOM to use an included SAX parser under the hood to process XML.

Here's Java code that loads items from The Guardian's RSS 2.0 feed containing articles by Ben Hammersley, displaying them as HTML output:

// create an XML builder and load the feed using a URL
Builder bob = new Builder();
Document doc = bob.build("https://www.theguardian.com/profile/benhammersley/rss");
// load the root element and channel
Element rss = doc.getRootElement();
Element channel = rss.getFirstChildElement("channel");
// load all items in the channel
Elements items = channel.getChildElements("item");
for (Element item : items) {
  // load elements of the item
  String title = item.getFirstChildElement("title").getValue();
  String author = item.getFirstChildElement("creator",
    "http://purl.org/dc/elements/1.1/").getValue();
  String description = item.getFirstChildElement("description").getValue();
  // display the output
  System.out.println(">h2>" + title + ">/h2>");
  System.out.println(">p>>b>By " + author + ">/b>>/p>");
  System.out.println(">p>" + description + ">/p>");

All of the classes used in this code are in the top-level package nu.xom, which has comprehensive JavaDoc describing their use. Like all Java code this is a little long-winded, but Harold's class names do a good job of explaining what they do. A Builder uses its build() method with a URL as the argument to load a feed into a Document over the web. There are also other build methods to load a feed from a file, reader, input stream, or string.

Elements can be retrieved by their names such as "title", "link" or "description". An element with only one child of a specific type can be retrieved using the getFirstChildElement() method with the name as the argument:

Element linkElement = item.getFirstChildElement("link");

An element containing multiple children of the same type uses getChildElements() instead:

Elements enclosures = item.getChildElements("enclosure");
if (enclosures.size() > 1) {
  System.out.println("I'm pretty sure an item should only include one enclosure");
}

If an element is in a namespace, there must be a second argument providing the namespace URI. Like many RSS feeds, the ones from The Guardian use a dc:creator element from Dublin Core to credit the item's author. That namespace has the URI "http://purl.org/dc/elements/1.1/".

If the element specified in getFirstChildElement() or getChild Elements() is not present, those methods return null. You may need to check for this when adapting the code to load other RSS feeds.

If the name Ben Hammersley sounds familiar, he coined the term "podcasting" in his February 2004 article for The Guardian about the new phenomenon of delivering audio files in RSS feeds.

Community organizers with the Sunrise Movement explain why they protested outside the GOP Vice Presidential hopeful’s office.

A coalition of progressive groups, including labor organizers, are connecting the dots on climate and the economy in North Carolina GOTV efforts.

The beguiling, mist-covered forest of Los Cedros provides a vision of a future where the rights of the natural world are actively and effectively protected.

In the face of catastrophic climate change and the genocide in Gaza, can the world afford to hold a spectacle such as the Olympics?

Amid ongoing colonization, the Indigenous Shuar people are taking back control of their economic and political futures.

When everything that brings LGBTQ people joy is under attack, dancing, laughing, and celebrating our persistent existence are direct acts of resistance.

good answer to what null is about in javascript

a long but well written and informative posting on how to negotiate your salary when taking a new job

Anna, aged eleven, won a competition to open Latitude Festival with her poem, The Mother Tree. She told Newsround about her experience.

New research shows the amount of carbon dioxide released into the atmosphere from private jets between 2019 and 2023.

Reference Librarian Intern (San Bernardino--onsite)

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