How do I get Maven to fail when conflicting versions of the same artifact are referenced?

Question

I'd like my Maven build to fail if the same artifact is referenced with different versions in my dependency tree. This would seem like a fairly trivial option, but I can't work out how to do it. Any clues?

Answer 1

maven-enforcer-plugin有一个dependencyConvergence规则可以满足您的需求.这是文档中的一个示例.

这将导致构建失败:

  <dependencies>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-jdk14</artifactId>
      <version>1.6.1</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-nop</artifactId>
      <version>1.6.0</version>
    </dependency>
  </dependencies>  

在编译期间记录此内容:

[ERROR]
Dependency convergence error for org.slf4j:slf4j-api:1.6.1 paths to dependency are:
+-org.myorg:my-project:1.0.0-SNAPSHOT
  +-org.slf4j:slf4j-jdk14:1.6.1
    +-org.slf4j:slf4j-api:1.6.1
and
+-org.myorg:my-project:1.0.0-SNAPSHOT
  +-org.slf4j:slf4j-nop:1.6.0
    +-org.slf4j:slf4j-api:1.6.0