Tag java

Article

Error Handling in (Spring) Servlet Filters (2 mins read).

How to return HTTP errors when a Java Servlet fails with Spring (Boot).

Mon, 17 Jan 2022 17:14 by Jamie Tanna . #blogumentation #java #spring-boot #spring.

Liked https://gds-way.cloudapps.digital/manuals/programming-languages/java.html .

Fri, 14 Jan 2022 15:17 by Jamie Tanna . #java.

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Bookmarked https://stackoverflow.com/questions/3550292/what-do-java-annotation-elementtype-constants-mean .

Recommended read: What do Java annotation ElementType constants mean? - Stack Overflow https://stackoverflow.com/questions/3550292/what-do-java-annotation-elementtype-constants-mean

Fri, 14 Jan 2022 13:53 by Jamie Tanna . #bean-validation #java.

Article

Announcing uuid, a Java Library for UUID Validation (1 mins read).

Releasing a new library that can be used to validate UUIDs in Java.

Fri, 14 Jan 2022 11:54 by Jamie Tanna . #java #uuid #jsr380 #bean-validation.

Article

Validating UUIDs with Regular Expressions in Java (1 mins read).

How to validate UUIDs and UUIDv4s in Java with a regex.

Fri, 14 Jan 2022 11:54 by Jamie Tanna . #blogumentation #java #uuid #regex.

Article

Auditing with Spring Boot Actuator (9 mins read).

How to use Spring Boot Actuator for your audit and business event logging needs.

Thu, 13 Jan 2022 13:49 by Jamie Tanna . #blogumentation #java #spring-boot #spring-security #logs.

Article

Returning a Value, or a Default, From a Java Optional (1 mins read).

How to replace imperative code with a functional style, when returning a default value for a Java Optional.

Thu, 13 Jan 2022 09:53 by Jamie Tanna . #blogumentation #java.

Bookmark

Bookmarked https://roytuts.com/spring-boot-actuator-accessing-endpoints-via-jmx/ .

Recommended read: Spring Boot Actuator - Accessing Endpoints via JMX - Roy Tutorials https://roytuts.com/spring-boot-actuator-accessing-endpoints-via-jmx/

Tue, 11 Jan 2022 13:52 by Jamie Tanna . #java #spring-boot.

Article

Adding both an ObjectMapper and a YAMLMapper to Spring Boot (2 mins read).

How to have an ObjectMapper and a YAMLMapper coexisting in a Spring Boot project's bean dependencies.

Mon, 10 Jan 2022 17:35 by Jamie Tanna . #blogumentation #java #jackson #spring-boot.

Article

Testing Data Serialisation/Deserialization in Java (with Gson) (3 mins read).

How to validate your JSON types correctly serialise/deserialise when using the Gson library.

Fri, 07 Jan 2022 09:21 by Jamie Tanna . #java #testing #gson #blogumentation.

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Bill Gates: I'm literally losing sleep over Java September 30, 1996
Internal Tech Emails (@TechEmails)Wed, 05 Jan 2022 17:50 GMT

Thu, 06 Jan 2022 13:17 by Jamie Tanna . #java #microsoft.

Liked https://stackoverflow.com/questions/53134212/invalid-privatekey-when-using-jsch .

Wed, 05 Jan 2022 15:30 by Jamie Tanna . #java #ssh.

Article

Publishing to Maven Repositories with GitLab CI, with Signed Artefacts (4 mins read).

How to publish signed artefacts from a Gradle build to Maven repositories (such as Maven Central) when using GitLab CI.

Tue, 04 Jan 2022 13:21 by Jamie Tanna . #blogumentation #gradle #java #gitlab-ci #gpg.

Bookmark

Bookmarked https://madhead.me/posts/no-bullshit-maven-publish/ .

Recommended read: No-bullshit guide on publishing your Gradle projects to Maven Central • madhead https://madhead.me/posts/no-bullshit-maven-publish/

Tue, 04 Jan 2022 13:01 by Jamie Tanna . #java #maven #gradle.

Article

Gotcha: PicoContainer Doesn't Support Zero-Argument Constructors (2 mins read).

A little gotcha around using PicoContainer (with Cucumber) where it may not be usable.

Thu, 30 Dec 2021 21:01 by Jamie Tanna . #blogumentation #java #cucumber #picocontainer.

Article

Using Dagger for Dependency Injection with Cucumber Tests (4 mins read).

How and why to add Dagger for your Cucumber tests' dependency injection.

Thu, 30 Dec 2021 21:01 by Jamie Tanna . #blogumentation #java #cucumber #dagger.

Bookmark

Bookmarked https://justinpombrio.net/2021/12/26/preventing-log4j-with-capabilities.html .

Recommended read: Preventing Log4j with Capabilities https://justinpombrio.net/2021/12/26/preventing-log4j-with-capabilities.html

Tue, 28 Dec 2021 10:50 by Jamie Tanna . #log4shell #security #java.

Liked https://mustafaakin.dev/posts/2021-12-08-running-intellij-idea-with-jdk17-for-better-render-performance/ .

Sat, 25 Dec 2021 09:58 by Jamie Tanna . #intellij #java #mac.

Article

Decompiling Java Class Files On the Command-Line (2 mins read).

How to use the Fernflower decompiler on the command-line to decompile compiled Java classes.

Mon, 20 Dec 2021 20:49 by Jamie Tanna . #blogumentation #java.

Article

Validating a Spring (Boot) Response Matches JSON Schema with MockMVC (3 mins read).

How to perform JSON Schema validation for a Spring (Boot) service's response when testing using MockMVC.

Mon, 20 Dec 2021 14:43 by Jamie Tanna . #blogumentation #spring #spring-boot #java #json-schema.

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#Java17
ASHISH CHOUDHARY 👨🏻‍💻🧔🏻👨‍👩‍👦 (@iASHeeesh)Mon, 18 Oct 2021 11:38 +0000

Fri, 17 Dec 2021 07:56 by Jamie Tanna . #java.

Article

Retrieving All Dependencies Required by a JAR at Runtime (3 mins read).

How to handily retrieve the full runtime classpath required for a JAR file, using Gradle.

Thu, 16 Dec 2021 15:14 by Jamie Tanna . #blogumentation #gradle #java.

It looks like you're looking for catchThrowableOfType, which allows you to receive the correct class:

import static org.assertj.core.api.Assertions.catchThrowableOfType;

SomeException throwable = catchThrowableOfType(() -> service.doSomething(), SomeException.class);

assertThat(throwable.getSomething()).isNotNull();

It looks like you're looking for catchThrowableOfType, which allows you to receive the correct class:

import static org.assertj.core.api.Assertions.catchThrowableOfType;

SomeException throwable = catchThrowableOfType(() -> service.doSomething(), SomeException.class);

assertThat(throwable.getSomething()).isNotNull();

Wed, 15 Dec 2021 17:12 by Jamie Tanna . #java #assertj.

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I was today years old that I learned when you hash a URL in Java it does a DNS lookup to get the IP address associated with the hostname as part of the hash function.
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If you're surprised about the log4j vulnerability, just wait until you hear what happens when you put a java.net.URL into a hashtable
Pete Hunt 🚁 (@floydophone)Sat, 11 Dec 2021 21:05 GMT
Nicholas Weaver (@ncweaver)Mon, 13 Dec 2021 17:58 GMT

Wed, 15 Dec 2021 14:01 by Jamie Tanna . #java.

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Why I don't like Java for Lambda functions How it cold started How it keeps going
Paul Johnston - containing his snark (@PaulDJohnston)Tue, 14 Dec 2021 13:29 GMT

Tue, 14 Dec 2021 13:48 by Jamie Tanna . #java #lambda #aws-lambda.

Article

Getting the Date from a Week Number in Java (1 mins read).

How to get the date from a week number and year in Java.

Mon, 13 Dec 2021 20:33 by Jamie Tanna . #blogumentation #java.

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https://twitter.com/liran_tal/status/1469770636356722688
Pretty much every day for the last 10 years.
Dio Rettori (@rettori)Sat, 11 Dec 2021 20:58 GMT

Sun, 12 Dec 2021 22:08 by Jamie Tanna . #java.

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from @BlackHatEvents USA 2016: A Journey From #JNDI/LDAP Manipulation to Remote Code Execution Dream Land by @pwntester and @olekmirosh blackhat.com/docs/us-16/mat… now the exploit vector presented in 2016 is the #log4jRCE. attached slide #11 from the presentation below. :)
an0n (@an0n_r0)Sat, 11 Dec 2021 12:23 GMT

Sun, 12 Dec 2021 09:59 by Jamie Tanna . #log4shell #java #security.

Bookmark

Bookmarked https://snyk.io/blog/java-json-deserialization-problems-jackson-objectmapper/ .

Recommended read: Java JSON deserialization problems with the Jackson ObjectMapper | Snyk https://snyk.io/blog/java-json-deserialization-problems-jackson-objectmapper/

Tue, 07 Dec 2021 12:10 by Jamie Tanna . #java #security #json #jackson.

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Hey #Java Developers ☕️ It's your Monday #SipOfJava, rewind edition ⏪ Want to experiment with a new feature in Java? Or just try something out? 🧪🔬 Consider writing a single file application and running it with the java launcher! Happy Coding!
Billy Korando ☕️ ☃️🎁🎄#BLM (@BillyKorando)Mon, 06 Dec 2021 16:00 GMT

Mon, 06 Dec 2021 21:27 by Jamie Tanna . #java.

Article

Reducing Risk of Supply Chain Attacks with Reproducible Builds in Gradle (1 mins read).

How to enable Gradle's reproducible builds functionality to allow others to verify your released libraries don't contain uncommitted, malicious code.

Thu, 02 Dec 2021 17:05 by Jamie Tanna . #blogumentation #java #gradle #security.

Article

Packaging Wiremock Stubs into a Standalone JAR (2 mins read).

How to use Gradle to package a standalone JAR for Wiremock, including any stubs needed.

Thu, 02 Dec 2021 11:11 by Jamie Tanna . #blogumentation #java #gradle #wiremock.

Article

Testing Data Serialisation/Deserialization in Java (with Moshi) (3 mins read).

How to validate your JSON types correctly serialise/deserialise when using the Moshi library.

Wed, 01 Dec 2021 09:42 by Jamie Tanna . #java #testing #moshi #blogumentation.

Article

Generate Plain Old Java Objects (POJOs) from JSON Schema Definitions with Gradle (3 mins read).

How to generate POJOs really quickly and easily, with no manual work, using the Gradle jsonschema2pojo Plugin.

Mon, 29 Nov 2021 09:23 by Jamie Tanna . #blogumentation #gradle #java #json-schema.

Article

Shift Your Testing Left with Spring Boot Controllers (5 mins read).

How to break down your tests for Spring Boot controllers, which could be used when performing Test Driven Development.

Sun, 28 Nov 2021 17:31 by Jamie Tanna . #java #testing #tdd #spring-boot.

Article

Generate Plain Old Java Objects (POJOs) from XML Schema Definitions with Gradle (1 mins read).

How to generate POJOs really quickly and easily, with no manual work, using the Gradle XJC Plugin.

Mon, 22 Nov 2021 17:35 by Jamie Tanna . #blogumentation #gradle #java #xml.

Article

Determining the Version Of Libraries Packaged into the Java AWS Lambda Runtime (3 mins read).

How to determine what libraries, and their respective versions, are packaged into AWS Lambda.

Wed, 17 Nov 2021 17:21 by Jamie Tanna . #blogumentation #java #aws #aws-lambda #serverless.

Article

Lessons Learned from Running Java in Serverless Environments like AWS Lambda (10 mins read).

Some recommendations for running Java as a Serverless application language, for instance on AWS Lambda or Google Cloud Functions.

Wed, 17 Nov 2021 17:21 by Jamie Tanna . #java #aws #aws-lambda #serverless #google-cloud.

Article

Generating Dynamic Identifiers with Thymeleaf (1 mins read).

How to generate a dynamic ids for elements in Thymeleaf.

Tue, 16 Nov 2021 21:54 by Jamie Tanna . #blogumentation #java #thymeleaf.

Bookmark

Bookmarked https://emmanuelbernard.com/blog/2021/11/15/java-lts/ .

Recommended read: Java LTS - perspective of a library author https://emmanuelbernard.com/blog/2021/11/15/java-lts/

Tue, 16 Nov 2021 07:46 by Jamie Tanna . #java #library #versioning #version-pinning.

Liked https://github.com/wiremock/wiremock/ .

Fri, 12 Nov 2021 09:07 by Jamie Tanna . #wiremock #java #testing.

An ex colleague of mine wrote this pretty great article about cold start reduction for Java https://www.capitalone.com/tech/cloud/aws-lambda-java-tutorial-reduce-cold-starts/

Tue, 09 Nov 2021 14:27 by Jamie Tanna . #aws-lambda #java.

Liked https://www.youtube.com/watch?v=UlFFKkq6fyU .

Tue, 09 Nov 2021 11:21 by Jamie Tanna . #java.

Article

Running a Java WAR File on the Command-Line (2 mins read).

How to run a WAR file locally, using Jetty, without installing anything.

Mon, 08 Nov 2021 21:17 by Jamie Tanna . #blogumentation #java #war.

Article

Creating More Descriptive and Fluent Assertion Helpers (4 mins read).

How to improve test readability, and developer experience, using assertion helpers.

Thu, 04 Nov 2021 19:26 by Jamie Tanna . #blogumentation #testing #java #ruby #rspec #assertj.

Liked https://product.hubspot.com/blog/the-fault-in-our-jars-why-we-stopped-building-fat-jars .

Thu, 28 Oct 2021 18:05 by Jamie Tanna . #java.

Article

Using JitPack to Install Gradle Plugins from Git Sources (2 mins read).

How to use JitPack to use an unreleased Gradle plugin from a Git repo in your Gradle projects.

Wed, 27 Oct 2021 11:37 by Jamie Tanna . #blogumentation #gradle #java #jitpack.

Article

Things I Learned Migrating My Personal APIs To Kubernetes (10 mins read).

What I learned while migrating from a number of Java applications on Virtual Private Servers (VPS) to a Kubernetes cluster.

Mon, 25 Oct 2021 14:47 by Jamie Tanna . #kubernetes #personal-infrastructure #sysadmin #java #spring-boot.

Article

Updating a Secret in Kubernetes with the Java Client (3 mins read).

How to use the Kubernetes Java SDK to patch a secret through Kubernetes' secrets API.

Sat, 23 Oct 2021 19:23 by Jamie Tanna . #blogumentation #kubernetes #java.

Article

Lightweight and Powerful Dependency Injection for JVM-based Applications with Dagger (7 mins read).

How and why you should be using Dagger for your dependency injection.

Tue, 19 Oct 2021 09:35 by Jamie Tanna . #blogumentation #java #aws-lambda #dagger.

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