build warnings

dto_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>org.tst</groupId>
        <artifactId>warning_ex</artifactId>
        <version>1.0</version>
    </parent>
    <artifactId>dto</artifactId>
    <name>warning problem - dto</name>
    <dependencies>

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

        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
             <scope>provided</scope>
       </dependency>

    </dependencies>

</project>

mapper_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>org.tst</groupId>
        <artifactId>warning_ex</artifactId>
        <version>1.0</version>
    </parent>

    <artifactId>mapper</artifactId>
    <name>warning problem - mapper</name>

    <dependencies>
        <dependency>
            <groupId>org.tst</groupId>
            <artifactId>source</artifactId>
        </dependency>

        <dependency>
            <groupId>org.tst</groupId>
            <artifactId>dto</artifactId>
        </dependency>

        <dependency>
            <groupId>org.mapstruct</groupId>
            <artifactId>mapstruct</artifactId>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.bsc.maven</groupId>
                <artifactId>maven-processor-plugin</artifactId>
                <version>2.2.4</version>
                <configuration>
                    <defaultOutputDirectory>${project.build.directory}/generated-sources</defaultOutputDirectory>
                    <processors>
                        <processor>org.mapstruct.ap.MappingProcessor</processor>
                    </processors>
                     <options>
                        <unmappedTargetPolicy>WARN</unmappedTargetPolicy>
                    </options>
                </configuration>
                <executions>
                    <execution>
                        <id>process</id>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>process</goal>
                        </goals>
                    </execution>
                </executions>
                <dependencies>
                    <dependency>
                        <groupId>org.mapstruct</groupId>
                        <artifactId>mapstruct-processor</artifactId>
                        <version>1.0.0-SNAPSHOT</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>
    </build>
</project>

root_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>
    <groupId>org.tst</groupId>
    <artifactId>warning_ex</artifactId>
    <version>1.0</version>
    <packaging>pom</packaging>
    <name>warning problem</name>
    <modules>
        <module>dto</module>
        <module>source</module>
        <module>mapper</module>
    </modules>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencyManagement>
        <dependencies>

            <dependency>
                <groupId>org.tst</groupId>
                <artifactId>source</artifactId>
                <version>${project.version}</version>
            </dependency>

            <dependency>
                <groupId>org.tst</groupId>
                <artifactId>dto</artifactId>
                <version>${project.version}</version>
            </dependency>

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

            <dependency>
                <groupId>org.hibernate</groupId>
                <artifactId>hibernate-validator</artifactId>
                <version>5.1.1.Final</version>
            </dependency>

            <dependency>
                <groupId>org.mapstruct</groupId>
                <artifactId>mapstruct</artifactId>
                <version>1.0.0-SNAPSHOT</version>
            </dependency>


        </dependencies>

    </dependencyManagement>

</project>

source_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>org.tst</groupId>
        <artifactId>warning_ex</artifactId>
        <version>1.0</version>
    </parent>
    <artifactId>source</artifactId>
    <name>warning problem - source</name>


</project>

SourceToTargetMapper.java

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

package org.tst;

import org.mapstruct.Mapper;
import src.test.Test;
import src.test.TestDto;

/**
 *
 * @author Sjaak Derksen
 */
@Mapper
public interface SourceToTargetMapper {

    Test map(TestDto source);
    TestDto map(Test source);
}

Test.java

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

package src.test;


/**
 *
 * @author Sjaak Derksen
 */
public class Test {

    private Long testLong;

    public Long getTestLong() {
        return testLong;
    }

    public void setTestLong( Long testLong ) {
        this.testLong = testLong;
    }

}

TestDto.java

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

package src.test;

import javax.validation.constraints.NotNull;
import org.hibernate.validator.constraints.Range;

/**
 *
 * @author Sjaak Derksen
 */
public class TestDto {

    @NotNull
    @Range( min=5, max=10 )
    private Long testLong;

    public Long getTestLong() {
        return testLong;
    }

    public void setTestLong( Long testLong ) {
        this.testLong = testLong;
    }

}