CODEWITHSUNDEEP
javamaven
Shady Xu
Shady Xu

Reputation: 5865

How to compile a single module inside it in a multi-module maven project?

This is how the project may looks like:

moduleA has a dependency on moduleB. I have set <modules> in the parent pom.xml and other configurations in the child pom.xmls. And I can run mvn package in the parent dir, but every time I run mvn package in the directory of moduleA it fails.

I know that running mvn package -pl moduleA in the parent directory can fix the problem. Since Apache Flume allows me to compile any single module in its own directory, why can't my project?

Upvotes: 0

Views: 6759

Answers (2)

whoami - fakeFaceTrueSoul
whoami - fakeFaceTrueSoul

Reputation: 17915

I had this issue: maven session does not declare a top level project

when I'm trying to run one module through command line like :- mvn clean install -pl moduleA where it was looking for parent module, So I've tried this & it worked with :- mvn clean install -pl .,moduleA in your case you can try this assuming dependency is already build & available in maven repo, else mvn clean install -pl .,moduleA --also-make should work. This will build only one specific project in multi-module maven project & as we've specified "." it would build parent pom which resolved the issue.

Upvotes: 1

Gauthier JACQUES
Gauthier JACQUES

Reputation: 675

Instead of launching goal "package", launch goal "install" on the root pom (or just moduleB). This will place moduleB in the local repository (~/.m2/repository) and Maven will be able to fetch it when it compiles only moduleA. Then you'll be able to compile only moduleA.

Upvotes: 1

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