Failing to get 100% coverage

Question

I am working with spring and using mvn site to check my test coverage and app dependency convergence, I am getting [Error] Error You do not have 100% convergence.

Dependencies used in modules
org.slf4j:slf4j-api

1.7.25  
com.epam.brest.course:rest-producer:war:1.0-SNAPSHOT
\- com.jayway.jsonpath:json-path:jar:2.3.0:test
   \- (org.slf4j:slf4j-api:jar:1.7.25:test - omitted for conflict with 1.7.5)

1.7.5   
com.epam.brest.course:rest-producer:war:1.0-SNAPSHOT
\- net.sf.dozer:dozer:jar:5.5.1:compile
   +- org.slf4j:slf4j-api:jar:1.7.5:compile
   \- org.slf4j:jcl-over-slf4j:jar:1.7.5:compile
      \- (org.slf4j:slf4j-api:jar:1.7.5:compile - omitted for duplicate)

I it says the issue is with versions of my slf4g in module rest-producer but i cant see any issue with my versions in this module , here it is below.

rest-producer

<dependency>
    <groupId>com.epam.brest.course</groupId>
    <artifactId>service</artifactId>
</dependency>

<dependency>
    <groupId>net.sf.dozer</groupId>
    <artifactId>dozer-spring</artifactId>
</dependency>

<dependency>
    <groupId>net.sf.dozer</groupId>
    <artifactId>dozer</artifactId>
</dependency>

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
</dependency>

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
</dependency>

<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
</dependency>

<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-api</artifactId>
</dependency>

<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-core</artifactId>
</dependency>

<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-jcl</artifactId>
</dependency>

<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <scope>test</scope>
</dependency>

<dependency>
    <groupId>org.hamcrest</groupId>
    <artifactId>hamcrest-all</artifactId>
    <scope>test</scope>
</dependency>

<dependency>
    <groupId>com.jayway.jsonpath</groupId>
    <artifactId>json-path</artifactId>
    <scope>test</scope>
</dependency>

<dependency>
    <groupId>com.epam.brest.course</groupId>
    <artifactId>utility</artifactId>
</dependency>

<dependency>
    <groupId>javax.validation</groupId>
    <artifactId>validation-api</artifactId>
</dependency>

<dependency>
    <groupId>org.mockito</groupId>
    <artifactId>mockito-all</artifactId>
</dependency>

and my parent module has such versions
 <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <h2.version>1.4.196</h2.version>
        <spring.version>4.3.14.RELEASE</spring.version>
        <log4j2.version>2.10.0</log4j2.version>
        <thymeleaf-spring4.version>3.0.8.RELEASE</thymeleaf-spring4.version>
        <project.version>1.0-SNAPSHOT</project.version>
        <servlet.version>3.0.1</servlet.version>
        <jackson.databind-version>2.9.4</jackson.databind-version>
        <validation.version>1.1.0.Final</validation.version>
        <hamcrest.version>1.3</hamcrest.version>
        <jsonpath.version>2.3.0</jsonpath.version>
        <junit.version>4.12</junit.version>
        <hibernate.version>5.1.3.Final</hibernate.version>
        <dozer.version>5.5.1</dozer.version>
        <Mocktio.version>1.9.5</Mocktio.version>
    </properties>

Can i get some suggestion of what it might be , the project has about 9 modules

The is jsonPath which i am using has a dependency

 <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.25</version>
      <scope>compile</scope>
 </dependency>

And dozer which i am also using has

<dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-simple</artifactId>
      <version>${slf4j.version}</version>
      <scope>test</scope>
    </dependency>

And versions are different I think this is the proble but what can i do exclude one of them or change version of their dependency

Answer 1

I think the error you are getting is due to having two versions of the same artifact in your dependencies. Try to exclude slf4j-api from the json-path dependency, to force your project to depend only on version 1.7.5:

<dependency>
    <groupId>com.jayway.jsonpath</groupId>
    <artifactId>json-path</artifactId>
    <scope>test</scope>
    <exclusions>
        <exclusion>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
         </exclusion>
    </exclusions>
</dependency>

You could also do the same exclusion on the dozer dependency. However, I feel it's safer to do it here, since this is dependency is only used for tests.