Gradle for java developers

Install gradle on your machine by following platform-specific steps, using brew for macOS or SDKMAN on unix-based systems, then set the path so gradle commands run anywhere.

Learn to use the Gradle wrapper on Windows by running GradleW.bat for your first project and applying the correct command or task to execute.

Create your first Gradle project, add a custom task, and run it with the Gradle wrapper; learn project setup, settings, and how wrappers enable project-specific Gradle versions.

Explore dependencies and repositories in a Java Gradle project, detailing how to declare group, artifact, and version, and explain scopes such as implementation and testImplementation with Maven Central and JUnit.

Explore Gradle configurations and how dependencies flow through source sets, tests, and war packaging. Compare api and implementation, compile only, and legacy maven scopes.

Explore Groovy data types and type inference, compare with Java types, and use def, wrappers, and primitives; learn strings, multiline strings, and regex patterns.

Learn how to work with the Gradle task object by accessing its properties and methods, defining variables, and establishing task relationships using depends on and finalized by, including default tasks.

Create index.html with a coupon form linking to /coupon, implement a servlet that handles doGet and doPost to process the coupon, set a discount attribute, and forward to response.jsp.

Launch and test a java web app using the gritty gradle plugin, running on jetty by default or tomcat, with configurable port and access on localhost:8080.

Create a multi-module Gradle project by renaming the app to services and duplicating it to create web layer, data layer, and integration layer, configure settings.gradle, and run Gradle build.

Learn to create and apply Gradle tasks across a multi-module project, including printing the project name and using all projects, subprojects, or specific projects to control execution.

Discover how to show dependencies for a subproject in Gradle with a simple command, revealing the full dependency tree including transitive dependencies.

Configure test support by adding JUnit and Mockito dependencies to Gradle and creating a coupon servlet test with mocked HTTP request, response, and request dispatcher.

Write and run a unit test for a servlet doPost method by mocking request parameter and request dispatcher, verifying setAttribute and forward calls, and validating with a Gradle build.

Update the Gradle workflow by migrating from sonar cube to sonar and passing a generated sonar token via build.gradle to run sonar tasks.

Run Gradle SonarQube to scan your project, identify vulnerabilities and code smells, then fix issues such as missing @Override annotations and re-run the scan.

Download the Jenkins war file, run it with java -jar jenkins.war, and unlock with the initial password on localhost:8080, then install plugins and set up the admin user.

Compare the Gradle build script with Maven pom.xml to see how a parent specifies the Spring Boot version, and how plugins and BOM manage dependencies for Spring Boot projects.

Migrate a spring boot maven project to a gradle project using the coupon and product services, and bring them up on ports 9091 and 9090.