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Asked: 2026-05-27T02:57:40+00:00

I have a multi-module maven project made up of three sub-modules: web , service

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I have a multi-module maven project made up of three sub-modules: web, service and domain. I use m2e and have managed to import the maven projects into Eclipse.

What’s more, the service and domain projects are in the web‘s java build path and the domain project is in the service‘s java build path.

It is very strange because compilation errors are displayed which seem to indicate that for instance service does not see domain. However when I click on a class in error in eclipse, I can navigate to the domain class.

Furthermore, I can add the web project to the Tomcat server instance but the web project does not contain the other two projects.

Can anyone please help?

web pom.xml:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>com.bignibou</groupId>
        <artifactId>bignibou</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <groupId>com.bignibou</groupId>
    <artifactId>bignibou-web</artifactId>
    <packaging>war</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>bignibou-web</name>

    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.tml</include>
                    <include>**/*.properties</include>
                </includes>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.xml</include>
                    <include>**/*.properties</include>
                </includes>
            </resource>
        </resources>

        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <!--
                <version>2.0.2</version>
                <configuration>
                    <webResources>
                        <resource>
                            <directory>${basedir}/WebContent</directory>
                        </resource>
                    </webResources>
                    <warSourceDirectory>WebContent</warSourceDirectory>
                    <warSourceExcludes>WebContent/WEB-INF/lib/*.jar</warSourceExcludes>
                    <archiveClasses>false</archiveClasses>
                </configuration>
                -->
            </plugin>
        </plugins>
    </build>

    <dependencies>
        <dependency>
            <groupId>com.bignibou</groupId>
            <artifactId>bignibou-domain</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>com.bignibou</groupId>
            <artifactId>bignibou-service</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.apache.tapestry</groupId>
            <artifactId>tapestry-core</artifactId>
            <version>5.2.6</version>
        </dependency>
        <dependency>
            <groupId>org.apache.tapestry</groupId>
            <artifactId>tapestry-beanvalidator</artifactId>
            <version>5.2.6</version>
        </dependency>
        <dependency>
            <groupId>org.apache.tapestry</groupId>
            <artifactId>tapestry-spring</artifactId>
            <version>5.2.6</version>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>1.7.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.tapestry</groupId>
            <artifactId>tapestry-test</artifactId>
            <version>5.2.6</version>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <artifactId>testng</artifactId>
                    <groupId>org.testng</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>3.0.5.RELEASE</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.easymock</groupId>
            <artifactId>easymock</artifactId>
            <version>2.5.2</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-web-api</artifactId>
            <version>6.0</version>
            <scope>provided</scope>
        </dependency>
        <!-- <dependency> <groupId>com.formos.tapestry</groupId> <artifactId>tapestry-testify</artifactId> 
            <version>1.0.2</version> <scope>test</scope> </dependency> <dependency> <groupId>com.formos.tapestry</groupId> 
            <artifactId>tapestry-xpath</artifactId> <version>1.0.1</version> <scope>test</scope> 
            </dependency> -->
    </dependencies>
</project>

service pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>com.bignibou</groupId>
        <artifactId>bignibou</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <groupId>com.bignibou</groupId>
    <artifactId>bignibou-service</artifactId>
    <version>1.0-SNAPSHOT</version>
    <name>bignibou-service</name>

    <!-- Shared version number properties -->
    <properties>
        <org.springframework.version>3.0.5.RELEASE</org.springframework.version>
    </properties>

    <dependencies>
        <!--
            Core utilities used by other modules.
            Define this if you use Spring Utility APIs (org.springframework.core.*/org.springframework.util.*)
        -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${org.springframework.version}</version>
        </dependency>

        <!--
            Expression Language (depends on spring-core)
            Define this if you use Spring Expression APIs (org.springframework.expression.*)
        -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-expression</artifactId>
            <version>${org.springframework.version}</version>
        </dependency>

        <!--
            Bean Factory and JavaBeans utilities (depends on spring-core)
            Define this if you use Spring Bean APIs (org.springframework.beans.*)
        -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${org.springframework.version}</version>
        </dependency>

        <!--
            Aspect Oriented Programming (AOP) Framework (depends on spring-core, spring-beans)
            Define this if you use Spring AOP APIs (org.springframework.aop.*)
        -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${org.springframework.version}</version>
        </dependency>

        <!--
            Application Context (depends on spring-core, spring-expression, spring-aop, spring-beans)
            This is the central artifact for Spring's Dependency Injection Container and is generally always defined
        -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${org.springframework.version}</version>
        </dependency>

        <!--
            Various Application Context utilities, including EhCache, JavaMail, Quartz, and Freemarker integration
            Define this if you need any of these integrations
        -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${org.springframework.version}</version>
        </dependency>

        <!--
            Transaction Management Abstraction (depends on spring-core, spring-beans, spring-aop, spring-context)
            Define this if you use Spring Transactions or DAO Exception Hierarchy
            (org.springframework.transaction.*/org.springframework.dao.*)
        -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${org.springframework.version}</version>
        </dependency>

        <!--
            JDBC Data Access Library (depends on spring-core, spring-beans, spring-context, spring-tx)
            Define this if you use Spring's JdbcTemplate API (org.springframework.jdbc.*)
        -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${org.springframework.version}</version>
        </dependency>

        <!--
            Object-to-Relation-Mapping (ORM) integration with Hibernate, JPA, and iBatis.
            (depends on spring-core, spring-beans, spring-context, spring-tx)
            Define this if you need ORM (org.springframework.orm.*)
        -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${org.springframework.version}</version>
        </dependency>

        <!--
            Object-to-XML Mapping (OXM) abstraction and integration with JAXB, JiBX, Castor, XStream, and XML Beans.
            (depends on spring-core, spring-beans, spring-context)
            Define this if you need OXM (org.springframework.oxm.*)
        -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-oxm</artifactId>
            <version>${org.springframework.version}</version>
        </dependency>

        <!--
            Web application development utilities applicable to both Servlet and Portlet Environments
            (depends on spring-core, spring-beans, spring-context)
            Define this if you use Spring MVC, or wish to use Struts, JSF, or another web framework with Spring (org.springframework.web.*)
        -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${org.springframework.version}</version>
        </dependency>

        <!--
            Support for testing Spring applications with tools such as JUnit and TestNG
            This artifact is generally always defined with a 'test' scope for the integration testing framework and unit testing stubs
        -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${org.springframework.version}</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
            <version>1.3</version>
        </dependency>

        <dependency>
            <groupId>com.bignibou</groupId>
            <artifactId>bignibou-domain</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>
        <dependency>
            <groupId>commons-collections</groupId>
            <artifactId>commons-collections</artifactId>
            <version>3.1</version>
        </dependency>
    </dependencies>
    <build>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.xml</include>
                    <include>**/*.properties</include>
                </includes>
            </resource>
        </resources>
    </build>

</project>

domain pom.xlm

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>com.bignibou</groupId>
        <artifactId>bignibou</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <groupId>com.bignibou</groupId>
    <artifactId>bignibou-domain</artifactId>
    <version>1.0-SNAPSHOT</version>
    <name>bignibou-domain</name>

    <dependencies>
        <dependency>
            <groupId>javax.validation</groupId>
            <artifactId>validation-api</artifactId>
            <version>1.0.0.GA</version>
        </dependency>
        <dependency>
            <groupId>javax.inject</groupId>
            <artifactId>javax.inject</artifactId>
            <version>1</version>
        </dependency>

        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>4.2.0.Final</version>
        </dependency>
         <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>1.7.1</version>
        </dependency>
        <!--
        <dependency>
            <groupId>org.hibernate.javax.persistence</groupId>
            <artifactId>hibernate-jpa-2.0-api</artifactId>
            <version>1.0.0.Final</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
            <version>3.5.3-Final</version>
        </dependency>
        -->
        <dependency>
            <groupId>org.eclipse.persistence</groupId>
            <artifactId>org.eclipse.persistence.jpa</artifactId>
            <version>2.0.2</version>
        </dependency>
        <dependency>
            <groupId>org.eclipse.persistence</groupId>
            <artifactId>javax.persistence</artifactId>
            <version>2.0.0</version>
        </dependency>
    </dependencies>
    <build>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.xml</include>
                    <include>**/*.properties</include>
                </includes>
            </resource>
        </resources>
    </build>
    <repositories>
        <repository>
            <id>eclipselink</id>
            <url>http://www.eclipse.org/downloads/download.php?r=1&amp;nf=1&amp;file=/rt/eclipselink/maven.repo/</url>
        </repository>
    </repositories>
</project>

super pom.xlm:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

    <modelVersion>4.0.0</modelVersion>
    <groupId>com.bignibou</groupId>
    <artifactId>bignibou</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>bignibou super pom</name>
    <modules>
        <module>domain</module>
        <module>service</module>
        <module>web</module>
    </modules>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <dependencies>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.16</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.5.8</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>1.5.8</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.6.3</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.8.2</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
</project>
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1 Answer

  1. Editorial Team

    Define domain and service modules inside the dependency management tag in super pom. So basically add following definition inside super pom:

         <dependencyManagement>
        <dependencies>
           <dependency>
              <groupId>com.bignibou</groupId>
              <artifactId>bignibou-domain</artifactId>
              <version>1.0-SNAPSHOT</version>
           </dependency>
           <dependency>
              <groupId>com.bignibou</groupId>
              <artifactId>bignibou-service</artifactId>
              <version>1.0-SNAPSHOT</version>
           </dependency>
        <dependencies>
     </dependencyManagement>

    After adding these definitions to the super pom, you will also have the chance to remove version numbers for these dependencies from module pom’s.

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