Wondering what's included in the new Java 17 LTS release? Here's a list of all the changes made to the JDK between the Java 11 and Java 17 LTS releases.
Docker and Podman play two very separate and distinct roles in the modern DevOps pipeline. Here we compare Docker and Podman and show you how to choose which one is best for you.
Forced to choose between Docker and a virtual machine, which one should a developer choose. Here we compare and contrast the two DevOps tools and let you know which one is best to use.
Frustrated by GitHub's 'support for password authentication was removed' error? Here's how to fix it by creating a personal access token in GitHub.
Find out how Java provides a promising alternative for coding data science applications that may make it easier to develop more scalable AI.
Although Robotic Process Automation has been around for years, banks and financial institutions continue to find new RPA use cases to save time, effort and money.
Looking for the fork command in Git? Well, it doesn’t exist. Here we'll show you how to fork a Git or GitHub repo on your own.
Want to stop UiPath Studio from updating to the latest release all the time? Here's how to download and install a specific version of UiPath Studio.
It’s actually a bit tricky to install UiPath. This UiPath Studio install tutorial shows you how to find the download link and the right version.
How do you use a variable from one UiPath sequence in another? This tutorial will teach you everything you need to know about passing data between workflows.
While the UiPath If activity is great for simple logic, multi-branching demands the UiPath Switch activity. Learn how to use it to perform conditional logic.
Learn how to use the conditional UiPath If activity to create branches of logic in your RPA programs. This quick UiPath If-Then example will show you how.
Need to fork GitHub at the command line? This quick Git tutorial will show you how to install the GitHub CLI tools and fork a repository in the shell.
Recovery drive partition removal If you've purchased a laptop from Lenovo or desktop from Asus, there's a good chance there's a hidden recovery partition immediately after the boot sector. The ...
Has the ConcurrentModificationException been thrown in you Java app? Here are four simple ways to fix the ConcurrentModificationException in your code.
There are two ways to create a bare Git repo -- a bare Git clone or a Git init bare. This git bare repo tutorial will show you how to perform both.
A bare Git repo has all the capabilities of a non-bare repository, with the exception that it’s not meant for local development.
If you’re wondering how to git submodule and logically link repositories together, this git submodule tutorial -- with lots of examples -- is for you.
If your Git submodule is out of sync with the server, we can help. This git submodule update example shows you how to get the latest commits into your worktree.
In this GitHub submodule add example, we demonstrate how to take an independent GitHub repository, add a Git submodule and push back to the GitHub server.
When Sun Microsystems first developed a programming language to power their Star7 entertainment controller, they named it Oak, not Java.
Here's the anatomy of Java's main method. An anachronism with the rise of Servlets and JSPs, Spring Boot and Eclipse Microservice developers are seeing more of Java's main function as apps are ...
This GitHub repository tutorial shows users how to create a new repository in the popular, cloud-hosted Git offering. Let’s dig into the central concepts of GitHub-based DevOps.
In this Jenkins and Docker integration tutorial, I’ll show you how to create a Jenkinsfile build with Docker. Just pull a Jenkinsfile from a GitHub repository, and Docker will take care of the rest.
This Java recursion tutorial shows you how to create a recursive Java factorial function and compares these methods to iterative ones.
We often debate the merits of iterative vs recursive Java code. Let’s take a look at 5 Java recursion examples and see where the concept of recursion fits.
In this git tag clone example, we’ll demonstrate how to pull from a tag point in your git commit history. However, it comes with a catch, in the form of a detached head.
In some cases, Gitflow will come prepackaged with Git for Windows installations. Those on older installations will need do it manually. Here's a quick guide on how to perform a Gitflow install for ...
Here's a quick Gitflow init example, along with a quick tutorial on how to perform a full Gitflow workflow after you execute the command.
The Gitflow release branch is the final step in this software development process workflow. Here we look at the start, finish and impact the Gitflow release has on the master, develop and feature ...
If you’re lucky, you’ll never have to start the Gitflow hotfix process. But just in case, here’s a quick example of how to incorporate the Gitflow hotfix branch into your version control workflow.
Here's a quick Java Mission Control tutorial to show you how to install the Java Mission Control Eclipse plugin and start a Java Flight Recorder JVM profile run.
JDK Mission Control is feckless without a Java Flight Recorder file to profile. Here are 3 easy ways you can start Java Flight Recorder in Eclipse and monitor your JVM in JMC.
When you clone a git repository, it won’t necessarily bring down the branches and code for the associated submodules. The git submodule init and update command and the --recurse-submodules switch ...
The boxing and unboxing of Java primitive types has severe performance implications. Uncover the truth about autoboxing Java primitive types in this JDK Mission Control and JVM Flight Recorder example.
YAML has joined the ranks of declarative and scripted pipelines in Jenkins. Here's an example of what the syntax for a Jenkins YAML pipeline looks like.
Need to run Jenkins on AWS? It's not a bad idea, especially when developers consider the need for a CI/CD server to integrate with peripheral resources. This quick example shows you the easiest way ...
This quick example will demonstrate how to implement a remote Jenkins build trigger. With the remote Jenkins build URL, a developer can call jobs from scripts, the CURL command and even Java code.
Keep complex logic out of your build scripts and take advantage of Jenkins shared libraries instead.
This git submodule add example demonstrates how a developer can use these steps to create a Git repository and add a new Git submodule to it.
The GitHub Actions environment variables available to a developer's workflows will vary from Ubuntu to Windows to MacOS. Here's a full environment variables list for each and why developers should ...
Running into difficulty with GitHub Webhooks and Jenkins builds? This Jenkins and GitHub webhook integration example shows how to trigger remote builds without the 403 no valid crumb in request ...
Here are the 10 best GitHub Actions examples for developers and DevOps admins that want to learn and master continuous integration and deployment.
Here's a simple example on how a developer can publish GitHub Actions artifacts for download once a build workflow successfully completes.
You can confidently store keys, tokens and passwords with GitHub Actions secrets. This quick, not-so secret tutorial, provides an example of how to do exactly that.
The Jenkins installer makes installation of the popular CI/CD tool incredibly easy. Follow these simple steps and you'll have the continuous integration server running on Windows in no time.
How to change JENKINS_HOME When Jenkins runs, it stuffs all of its logs, cloned repos, plugin configurations and build artifacts into the Jenkins Home folder. Basically, every ounce of ...
This CI/CD example shows you how the integration of Jenkins with GitHub includes not only the ability to pull GitHub code, but also to trigger Jenkins build jobs with webhooks as well.
Here's a quick example of how to run a Jenkins war file from the command line, DOS prompt or terminal window in Linux/Ubuntu. The short story? java -jar jenkins.war
Here's a quick fix to the Jenkins 'No such DSL method 'withMaven' found among steps: NoSuchMethodError' error. Hint? Install the Jenkins Maven pipeline plugin.
Here's a quick fix to the "403 no crumb was included in the request" error you often see when a Jenkins GitHub webhook is configured incorrectly.
The Jenkins Warnings plugin replaces the deprecated CheckStyle, FindBugs and PMD ones. This static code analysis in Jenkins example shows you how to integrate Jenkins, CheckStyle, FindBugs and PMD ...
Here's a quick example to show you how to install Jenkins on Ubuntu 20. Additionally, we'll install Git and test your Jenkins installation with a Hello World build job.
A local install of Jekyll on your Windows machine provides a variety of benefits which range from the ability to use your favorite text editor to fast compilation times. Even if you use GitHub ...
The easiest way to build your Apache Ant projects in Jenkins is with a pipeline and a Jenkinsfile that takes advantage of an Ant based Docker container. In this Apache Ant, Docker and Jenkins ...
Here's a simple example of how to build your Java apps in Jenkins with Ant. We demonstrate both the Jenkins Ant plugin and the Jenkins pipeline approach with a Jenkinsfile as well.
Here's a quick fix to the Jenkins Docker"Permission denied while trying to connect to the Docker daemon socket" error.
Here's how to quickly fix the "Invalid agent type Docker specified. Must be one of [any, label, none]" error by installing the correct Jenkins Docker pipeline plugins. We'll get your Jenkinsfile up ...
In this git clone depth 1 example, we'll walk you through the process of pulling only one commit and one branch back from a remote Git repository.
In this git log graph example we demonstrate not only how the git log graph works, but also how to use a pretty switch to make it more readable.
Working with GitHub or BitBucket? Then you need to install Git. In this tutorial we show you how to install Git on Windows in 10 easy steps.
This step-by-step, tutorial will walk developers through the necessary steps to create a GitHub repository and how to create the cloud-hosted Git repo that acts as the cornerstone for all ...
Every developer needs to know a few basic Git commands to become proficient with GitLab. Here are the top eight Git commands every developer must know to be on their way to GitLab mastery.
If you're ready to fly into the Danger Zone, then you're ready to follow these steps to delete a GitHub repository.
Security, compliance and governance concerns along with human worries still play a role in the integration of AI-based and RPA offerings to an enterprise. Here are some ways to alleviate those ...
The Struts 2 Ajax template is deprecated, but the Strut jQuery plugin is a more than capable replacement. In this Struts jQuery tutorial we show you how to integrate Ajax calls into your modern ...
It's not exactly a straightforward process for developers to have GitLab delete remote branches. In this GitLab tutorial, we'll show you how to remove remote GitLab branches with examples.
What is the .gitkeep file? How do you commit and push empty Git folders? In this quick tutorial we'll explain why git is not pushing empty folders and how to fix it.
After your RPA program is coded, you will need to create a robot in UiPath Orcestrator so the robotic automation can me managed. This UiPath robot creation tutorial shows you how to do exactly that.
Frustrated every time you forget to add a Git commit message and Vim, the default Git editor pops up? Here's a way to make issuing git commits a bit friendlier. In this Git tutorial, we show you ...
In this GitLab merge branch to master example, we explain why a GitLab merge into master is different from other operations, and how to accomplish this task with a GitLab master merge request.
There are two ways a developer can have GitLab merge master into a branch. One is to merge master into the branch on the client while the other is to perform a GitLab pull request. Here are some ...
Developers can use the git clean command to delete untracked files in a working tree and remove what they don't need from a local repository. Here is how to issue the command and some helpful tips ...
Can't find the .gitconfig or gitconfig files on your system? It's possible that Git didn't create them. Here's how to find gitconfig on the filesystem and create the if it's not there.
The combination of Apache Struts and Eclipse makes for a powerful development environment. Learn how to integrate the two open source tools and get developing Java web applications quickly.
In this tutorial on how to rebase GitHub repositories, we will clone a repo, perform a rebase from master and to master, and push back to the remote GitHub server.
There comes a time where you must clean up Git branches, commits and the repository as a whole. Here we show you how to compact your Git repo and keep things clean.
Here's a simple Struts Hello World example for anyone interested in learning how to use the latest Struts 2.5 release. The Apache Struts Framework has come a long way in the last 20 years.
Learn to develop a modern Java web application with this Apache Struts 2.5 example. No Struts config XML files are required. This zero-config Struts example goes without!
When a local git repository is out of sync with the GitLab server, developers must git push GitLab commits to origin. Here is how to push the commits to origin and maintain successful development.
One of a developer's first tasks when they start with GitLab is to clone the GitLab repository. Here's how to create a GitLab repository and clone it from the server to a local machine.
Is the UiPath Assistant complaining that the UiPath Orchestrator URL is wrong? Here's how to fix the UiPath Orchestrator present at the indicated URL error.
Why is the const keyword in Java not implemented? It's part of the language, but it can't be used to make a variable constant. Learn more about const and why developers continue to ponder its usage ...
What's the difference between WildFly and JBoss EAP? That answer is 'not much.' But there are a few differentiating factors in the WildFly vs. JBoss debate you should be aware of.
Here's a quick fix to the UiPath Invalid Machine Key error. If you're having a problem connecting your RPA robots to Orchestrator from the Assistant, this solution will set you on the right path.
Hibernate 5 has updated dialects for various databases, and MySQL 8 has a special one of its own. Here's an example hibernate.cfg.xml for MySQL 8 for Hibernate 5 apps or newer.
Hibernate SessionFactory tutorial If a developer uses the Hibernate core framework, they will need to build a SessionFactory before they can do any data persistence. As the name implies, the ...
An emerging specification from CNCF looks to secure software systems thanks to the open source community and a focus on update vulnerabilities that limit the effects of a potential attack.
To get started with GitLab, you first need to create a GitLab project. And when you're finished, you might also want to delete a GitLab project. Here we show you how to both create and remove ...
This Git tutorial demonstrates how to install GitLab on Ubuntu 20. With a GitLab server installed locally on Ubuntu, a developer can enjoy GitLab without the cloud.
Old JDBC drivers and new MySQL 8 databases don't mesh. Here's an updated MySQL persistence.xml example file for those doing JPA and Hibernate development.
Functional requirements and user stories create the blueprint for software applications. A good set of requirements can simplify developer's work when they translate business ideas into working ...
Here's a quick video example of how to do an Ubuntu hosts file edit. This is useful for development and testing when a developer wants to mimic a production domain name locally.
There’s a lot of misinformation out there about how to remove a Git submodule. Follow these steps to delete Git submodules.
Need to perform an Ubuntu git clone operation? Here we will show you how to install Git on Ubuntu and then clone, commit and even push to GitLab and GitHub.
Here's a quick fix to the Git 'unable to access GitHub or GitLab' SSL certificate settings error when you attempt to clone from GitHub or GitLab.
Git Worktree Add Example I was today years old when I learned you could have multiple git working trees active at the same time. The idea is simple. Imagine you have multiple branches and want to ...
This shallow git clone example shows you how to use the --depth switch to limit the git commit history pulled to your local machine.
Sometimes new business requirements will force a Git admin to rename a GitHub repository. Here's how to do it, and here's how it will impact existing users.
CRUD with Hibernate and JPA tutorial There are many classes and interfaces that make up the JPA and Hibernate API, and the sheer volume of development options can overwhelm even the most seasoned ...