Working with Java multi-project builds

In a Java project, we usually have compile or runtime dependencies between projects. For example, the output of one project is a compile dependency for another project. This is very common in Java projects. Let's create a Java project with a common project that contains a Java class used by other projects. We will add a services project that references the class in the common project. Finally, we will add a web project with a Java servlet class that uses classes from the services project.

We have the following directory structure for our project:

.
├── build.gradle
├── common
│   └── src
│       └── main
│           └── java
│               └── sample
│                   └── gradle
│                       └── util
│                           └── Logger.java
├── services
│   └── sample
│       └── src
│           ├── main
│           │   └── java
│           │       └── sample
│           │           └── gradle
│           │               ├── api
│   ...