Maven scenarios to correctly build multi-module project with specific dependency exclusions
I'm upgrading from an older version and I'm writing unit tests and I'm working on a project and hit a roadblock... I tried several approaches but none seem to work. I'm working on a multi-module Maven project where I've set up several modules, each depending on a common library. However, I'm working with a question with dependency exclusions. My goal is to exclude a specific transitive dependency from one of the modules, but it's not working as expected. In my `pom.xml` for the module `module-a`, I have the following configuration: ```xml <dependency> <groupId>com.example</groupId> <artifactId>common-library</artifactId> <version>1.2.3</version> <exclusions> <exclusion> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> </exclusion> </exclusions> </dependency> ``` Despite this, when I run `mvn clean package`, I still see `jackson-databind` being included in the final artifact. I’ve tried clearing the local repository using `mvn clean install -U`, but it didn’t help. Moreover, I’ve checked the dependency tree with `mvn dependency:tree` and observed that `jackson-databind` is still being included due to another module's dependency. That module also depends on `common-library`, which I thought would make my exclusion redundant. However, I was under the impression that exclusions should propagate. Here’s the output from the dependency tree showing the question: ``` [INFO] +- com.example:module-a:jar:1.0-SNAPSHOT:compile [INFO] | +- com.example:common-library:jar:1.2.3:compile [INFO] | | +- com.fasterxml.jackson.core:jackson-databind:jar:2.10.0:compile ``` I even tried adding the exclusion in the parent `POM` file, but that didn’t resolve the scenario either. Is there a way to properly exclude `jackson-databind` from the entire build without modifying every module that depends on `common-library`? Any help would be greatly appreciated! This is part of a larger CLI tool I'm building. Any ideas what could be causing this? Any ideas what could be causing this? I've been using Xml for about a year now. What would be the recommended way to handle this? The stack includes Xml and several other technologies.