DZone

JULY 16, 2021

Testing the console output, why even bother? I think any test which asserts some output based on the same action for your target class is useful as it validates the behavior of your service when it is called. Testing these kinds of cases will give you more confidence that your application is working as expected. Introduction.

Testing 279

Testing Java Code Development 279

Dynatrace

JUNE 10, 2022

The IT world is rife with jargon — and “as code” is no exception. “As code” means simplifying complex and time-consuming tasks by automating some, or all, of their processes. Today, the composable nature of code enables skilled IT teams to create and customize automated solutions capable of improving efficiency.

Best Practices 264

Best Practices Infrastructure Code Speed 264

Dynatrace

MARCH 9, 2022

This first step clearly shows that the code that powers getFamilyCondition is using a lot of CPU – much more than any other of the top services combined! It can be your own code, 3 rd party code or your runtime that executes for certain tasks such as Garbage Collection. So – we found the culprit!

Java 246

Java Traffic Government Code 246

DZone

JUNE 24, 2019

Unit testing is a well-known practice, but there's lots of room for improvement! In this post, the most effective unit testing best practices, including approaches for maximizing your automation tools along the way. We will also discuss code coverage, mocking dependencies, and overall testing strategies.

Best Practices 224

Best Practices Testing Java Strategy 224

DZone

AUGUST 28, 2019

These days, our code frequently has to reach out to a remote server as part of its job, usually consuming an API or some other service. Frequently, our code communicates with these remote services in a RESTful manner. Introduction.

Code 223

Code Testing Servers Java 223

Uber Engineering

JUNE 15, 2021

Introduction to Flaky Tests. Unit testing forms the bedrock of any Continuous Integration (CI) system. It warns software engineers of bugs in newly-implemented code and regressions in existing code, before it is merged. It also … The post Handling Flaky Unit Tests in Java appeared first on Uber Engineering Blog.

Java 134

Java Testing Software Engineering Engineering 134

The Netflix TechBlog

FEBRUARY 3, 2021

By open-sourcing the project, we hope to contribute to the Java and GraphQL communities and learn from and collaborate with everyone who will be using the framework to make it even better in the future. The transition to the new federated architecture meant that many of our backend teams needed to adopt GraphQL in our Java ecosystem.

Open Source 246

Open Source Java Architecture Metrics 246

DZone

DECEMBER 21, 2020

Naturally, such applications must be highly reliable so that no error in the code can interfere with data processing. To achieve high reliability, one needs to keep a wary eye on the code quality of projects developed for this area. This engine is written in Java and Scala. So, what is Apache Flink?

Code 159

Code Java Big Data Open Source 159

DZone

MARCH 25, 2022

As you may agree, it is important to test your code. The resilience patterns implemented in your application are code (even if they're just a bunch of annotations). Often I saw that this is not tested thoroughly or not at all. With Testcontainers , writing integration tests has become a commodity.

Testing 262

Testing Open Source Engineering Servers 262

DZone

JULY 13, 2022

AWS Lambda is a compute service that lets you run code without any infrastructure management and it natively supports Java, Go, NodeJS,Net, Python, and Ruby runtimes. We are using simple hello world functions to test invocation times of Lambdas’ by using the AWS SAM templates. Structure of the Template.

Lambda 264

Lambda AWS Java Infrastructure 264

DZone

MARCH 26, 2020

It's easy to write "unit test" tests that use JUnit and some mocking library. They may produce code coverage that keeps some stakeholders happy, even though the tests aren't even unit tests and provide questionable value. It is like the test has a negative value.

Testing 216

Testing Software Software Code 216

DZone

APRIL 13, 2023

For better or worse, it’s a nagging problem that too often gets kicked down the road until it’s too late and application development slows down, new features slip, test cycles increase, and costs ramp up. Technical debt takes on various forms from source code smells to security risks to the more serious issue of architectural technical debt.

Architecture 279

Architecture Airlines Best Practices Java 279

Dynatrace

FEBRUARY 23, 2022

Indeed, according to one survey, DevOps practices have led to 60% of developers releasing code twice as quickly. But increased speed creates a tradeoff: According to another study, nearly half of organizations consciously deploy vulnerable code because of time pressure. Increased adoption of Infrastructure as code (IaC).

Serverless 312

Serverless Infrastructure Innovation DevOps 312

Dynatrace

JUNE 1, 2022

Further, software development in multicloud environments introduces multiple coding languages and third-party libraries. Many of these libraries have not been adequately tested before deployment. As a result, these code sources compound opportunities for vulnerabilities to enter the software development lifecycle (SDLC).

Artificial Intelligence 245

Artificial Intelligence Java Cloud Strategy 245

Dynatrace

MAY 19, 2022

They enable product delivery and SRE teams to turn functionality on and off at runtime without deploying new code. This helps SRE teams quickly mitigate issues by turning off poorly-performing features, enabling features for specific subsets of end-users, or performing side-by-side A/B feature testing.

Java 290

Java Cloud Code Technology 290

The Netflix TechBlog

MARCH 10, 2020

Having our core logic isolated means we can easily change data source details without a significant impact or major code rewrites to the codebase. One of the main advantages we also saw in having an app with clear boundaries is our testing strategy?—?the We try to minimize the amount of these tests.

Architecture 346

Architecture Transportation Java Strategy 346

Dynatrace

AUGUST 11, 2022

DevOps teams, SREs (site reliability engineers), platform teams, and SecOps teams aren’t always working from a common source of truth: SAST tools (static application security testing) provide scanning code for vulnerabilities. Dynatrace extends its Runtime Vulnerability Analysis to Go on top of Java ,NET , Node.js

Java 264

Java Cloud DevOps Virtualization 264

Dynatrace

AUGUST 3, 2022

Although IT teams are thorough in checking their code for any errors, an attacker can always discover a loophole to exploit and damage applications, infrastructure, and critical data. Malicious actors can execute any code on the attacked system, for example, to access sensitive configuration data.

Java 261

Java Traffic Benchmarking Strategy 261

The Netflix TechBlog

NOVEMBER 9, 2022

We decided to move one of our Java microservices?—?let’s A quick canary test was free of errors and showed lower latency, which is expected given that our standard canary setup routes an equal amount of traffic to both the baseline running on 4xl and the canary on 12xl. The problem It started off as a routine migration.

Hardware 363

Hardware Cache Performance Latency 363

Dynatrace

DECEMBER 8, 2020

Teams are embracing new technologies and continuously deploying code. With DevSecOps processes having shifted security testing “left”, will the teams have enough time to manually analyze, assess, and manage risks based on sampled or scheduled scan results? They also can’t provide deep insights unless you have source code access.

Cloud 306

Cloud Open Source Internet Internet 306

Dynatrace

JUNE 13, 2022

Open source code, for example, has generated new threat vectors for attackers to exploit. Considering open source software (OSS) libraries now account for more than 70% of most applications’ code base, this threat is not going anywhere anytime soon. Spring4Shell vulnerabilities expose Java Spring Framework apps to exploitation.

Open Source 246

Open Source DevOps Java Innovation 246

Highly Scalable

FEBRUARY 2, 2012

Java was initially designed as a safe, managed environment. Nevertheless, Java HotSpot VM contains a “backdoor” that provides a number of low-level operations to manipulate memory and threads directly. This backdoor – sun.misc.Unsafe – is widely used by JDK itself in the packages like java.nio or java.util.concurrent.

Java 101

Java C++ Code Virtualization 101

The Netflix TechBlog

SEPTEMBER 8, 2020

On the Android team, while most of our time is spent working on the app, we are also responsible for maintaining this backend that our app communicates with, and its orchestration code. Image taken from a previously published blog post As you can see, our code was just a part (#2 in the diagram) of this monolithic service. Java…Script?

Latency 241

Latency Cache Java Traffic 241

Dynatrace

FEBRUARY 1, 2022

The vulnerability is located in Log4j 2, an open-source Apache Java software used to run logging services in a host of front-end and backend applications. A real-time observability platform with code-level application insights can automatically identify vulnerabilities in runtime and production environments.

Strategy 246

Strategy Games DevOps Open Source 246

DZone

AUGUST 6, 2019

All of these integration points require different layers of testing. Unit tests increase how fast you write code because you can mock all of your dependencies, set the expectation for your function, and iterate until you get the desired transformation; however, we need more.

Testing 200

Testing Database Code Java 200

Dynatrace

DECEMBER 13, 2024

Managing Auto-Instrumentation in Pods The Operator automatically injects and configures auto-instrumentation for your applications, which enables you to collect telemetry data without modifying your source code. The core distribution is a bare-bones distribution of the Collector for OpenTelemetry developers to develop and test.

Java 246

Java Servers Code Metrics 246

Dynatrace

MARCH 17, 2021

Application security is a software engineering term that refers to several different types of security practices designed to ensure applications do not contain vulnerabilities that could allow illicit access to sensitive data, unauthorized code modification, or resource hijacking. Application security tests and what they do.

Open Source 242

Open Source Cloud Games Java 242

Scalegrid

OCTOBER 18, 2024

Free Trial: Does the paid product offer a free trial so users can test before committing? It is known for its flexibility and large feature set, as well as supporting databases utilizing a Java Database Connectivity (JDBC) driver, rendering it a default tool for both DBAs and developers. Metadata search among rows of database tables.

Open Source 147

Open Source Database Cloud Operating System 147

Dynatrace

FEBRUARY 18, 2021

To improve the naming of our navigation menu entries, we will soon conduct A/B testing for one of the main entry points to the Dynatrace navigation menu. When testing it, one of our many findings was that developers and devops do not necessarily expect profiling to be included under ” diagnostic tools” as they are now.

Testing 246

Testing Java Tuning DevOps 246

Adrian Cockcroft

JANUARY 27, 2025

This was all a spare time project, as my day job at Netflix at that time was as a director level manager of a team working on personalization code in Java, and it wasnt my job to write the codemyself. One of the Java engineers on my teamJian Wujoined me to help figure out the API. The code is still up on github.

C++ 88

C++ Mobile Hardware Java 88

Dynatrace

DECEMBER 6, 2022

The ability to isolate certain software capabilities makes it easier to test, preview, release, and roll back small functional increments. In addition to requiring a high degree of custom coding, feature flags can rapidly accrue technical debt that can be opaque to diagnose. But feature flagging can also introduce some issues.

Open Source 246

Open Source DevOps Java Code 246

DZone

NOVEMBER 19, 2020

As a product is being developed and maintained its test suite is enriched as features and functionalities are added and enhanced. Ideally, development teams should aim having a lot of quick unit tests that are run whenever modifications in the code are made.

Development 170

Development Testing Speed Code 170

Brendan Gregg

OCTOBER 28, 2024

The green frames are the actual instructions running on the AI or GPU accelerator, aqua shows the source code for these functions, and red (C), yellow (C++), and orange (kernel) show the CPU code paths that initiated these AI/GPU programs. The gray "-" frames just help highlight the boundary between CPU and AI/GPU code.

Programming 130

Programming Hardware Tuning C++ 130

Dynatrace

NOVEMBER 6, 2023

But developers need code-level visibility and code-level data.” That’s not how I envision code-level observability,” Laifenfeld said. Laifenfeld argued that developers shouldn’t bear the burden of the additional workload when their focus is their code: “Learning Kubernetes as a developer is not easy,” she said. “If

Development 290

Development DevOps Programming Cloud 290

DZone

JANUARY 13, 2020

Learn how to conduct effective unit tests. The factory idiom helps you to insulate your code to changes thereby adhering to the Open to Extension Close to modification principle of object-oriented programming. You may also like: Unit Testing: The Good, Bad, and Ugly.

Testing 162

Testing Programming Code Java 162

DZone

JANUARY 7, 2020

Testing asynchronous operations might cause some troubles and usually requires few challenges and also code changes (even in production code). In this article, we can find how to test such operations in an application that uses spring context (with asynchronous operations enabled). Learn more about JUnit and Byteman!

Testing 162

Testing Code Java Programming 162

Dynatrace

JULY 29, 2022

One such software supply chain attack reared its head in late 2021, with the Log4Shell vulnerability , which affected millions of live applications using Java libraries. A software supply chain attack requires only one compromised application or piece of code to affect the entire supply chain. What is a software supply chain attack?

Software 246

Software Software Open Source DevOps 246