Maven Plugin not loading application properties - java

I have a problem when i try to Run my own maven plugin,
I need my maven plugin to load properties file, from the module that execute this plugin.
I have a Maven project with 2 modules
Module A which I create the plugin
#Mojo(name = "Test", defaultPhase = LifecyclePhase.COMPILE)
public class Test extends AbstractMojo {
#Value("${user}")
String user;
public void execute() throws MojoExecutionException, MojoFailureException {
System.out.println("user "+ user);
}
}
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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>Test</artifactId>
<packaging>maven-plugin</packaging>
<version>0.0.1-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.0</version>
<relativePath />
</parent>
<dependencies>
<dependency>
<groupId>org.flywaydb</groupId>
<artifactId>flyway-core</artifactId>
<version>8.5.4</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-plugin-api</artifactId>
<version>3.8.5</version>
</dependency>
<dependency>
<groupId>org.apache.maven.plugin-tools</groupId>
<artifactId>maven-plugin-annotations</artifactId>
<version>3.6.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-project</artifactId>
<version>3.0-alpha-2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
</dependencies>
<properties>
<maven.compiler.target>11</maven.compiler.target>
<maven.compiler.source>11</maven.compiler.source>
</properties>
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
<pluginManagement>
<plugins>
<plugin>
<artifactId>maven-plugin-plugin</artifactId>
<version>3.6.0</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
Module B where i run the plugin Test, and use properties file from module B
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>
<groupId>org.example</groupId>
<artifactId>Test</artifactId>
<version>1.0-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.12.0</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.example</groupId>
<artifactId>Test</artifactId>
<version>0.0.1-SNAPSHOT</version>
<executions>
<execution>
<goals>
<goal>Test</goal>
</goals>
<configuration>
<files>
<file>src/main/resources/application.properties</file>
</files>
</configuration>
</execution>
</executions>
<configuration>
<scope>test</scope>
</configuration>
</plugin>
</plugins>
</build>
</project>
application properties
user=test
Running the plugin with my Idea IDE
user null

Related

Creating Maven dependency of Project A and using it in Project B

I have a maven Spring boot project for which I've created a jar to use as a dependency externally in other projects. I just can't get it to work. Here are my steps.
Here is my pom.xml for Project 1.
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.myapp.logmonitoring</groupId>
<artifactId>logmonitoring</artifactId>
<name>logmonitoring</name>
<version>1.0-SNAPSHOT</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.5</version>
<type>pom</type>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.4.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-tomcat -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<version>2.4.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.awaitility/awaitility -->
<dependency>
<groupId>org.awaitility</groupId>
<artifactId>awaitility</artifactId>
<version>3.0.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<version>2.4.5</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.3.6</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
<executions>
<execution>
<goals>
<goal>test-jar</goal>
</goals>
</execution>
</executions>
<configuration>
<finalName>logmonitoring/logmonitoring-app</finalName>
</configuration>
</plugin>
</plugins>
</build>
And this is my pom.xml for Project 2. It just doesn't work.
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.myapp.logmonitoring.host1</groupId>
<artifactId>logmonitoring-host1</artifactId>
<name>logmonitoring-host1</name>
<version>1.0-SNAPSHOT</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.myapp.logmonitoring</groupId>
<artifactId>logmonitoring</artifactId>
<version>1.0-SNAPSHOT</version>
<scope>compile</scope>
</dependency>
</dependencies>

You have to put Jar as well as pom file of 1st project in.m2 repository.
.m2/org/myapp/logmonitoring/1.0-SNAPSHOT.
then add dependency like this
<dependency>
<groupId>org.myapp</groupId>
<artifactId>logmonitoring</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
If you are using mac then you can find .m2 repository in
/Users/<user_name>/.m2.
In Windowns it's in
C:\Users<User_Name>.m2
In linux it's in
/home/<User_Name>/.m2
Also unhide Hidden files

This really helped me solve it - http://www.avajava.com/tutorials/lessons/how-do-i-add-a-project-as-a-dependency-of-another-project.html

Package multi module maven with nested modules

I have the following maven project structure
Project[pom.xml] <type>pom</type>
-module 1[pom.xml] <type>jar</type>
-module 2[pom.xml] <type>pom</type>
--SubModule1[pom.xml] <type>jar</type>
--SubModule2[pom.xml] <type>jar</type>
--SubModule3[pom.xml] <type>war</type>
-module 3[pom.xml] <type>ear</type>
my problem with the packaging, the output EAR file does not include module 2 when doing
mvn clean install
What I did in module 2 is to package as war. but then I could not the artifact to the ear file.
any ideas are appreciated.
I hope I am not congesting this question
below is the poms
Project POM
<?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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>project</groupId>
<artifactId>project</artifactId>
<version>1.0.0</version>
<packaging>pom</packaging>
<name>project</name>
<description>Insert description for your project here.</description>
<modules>
<module>module1</module>
<module>module2</module>
<module>module3</module>
</modules>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>module1</artifactId>
<version>${project.version}</version>
<type>jar</type>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>module2</artifactId>
<version>${project.version}</version>
<type>pom</type>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.wildfly.bom</groupId>
<artifactId>wildfly-jakartaee8-with-tools</artifactId>
<version>${version.jboss.bom}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<!--Configuration of the maven-compiler-plugin -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${version.compiler.plugin}</version>
<configuration>
</configuration>
</plugin>
<plugin>
<groupId>org.wildfly.plugins</groupId>
<artifactId>wildfly-maven-plugin</artifactId>
<version>${version.wildfly.maven.plugin}</version>
<inherited>true</inherited>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
</plugins>
</build>
</project>
Module 2 POM
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>project</groupId>
<artifactId>project</artifactId>
<version>1.0.0</version>
<relativePath>../pom.xml</relativePath>
</parent>
<artifactId>module2</artifactId>
<version>1.0.0</version>
<packaging>pom</packaging>
<modules>
<module>SubModule1</module>
<module>SubModule2</module>
<module>SubModule3</module>
</modules>
<properties>
<!--suppress UnresolvedMavenProperty -->
<context.root>/root</context.root>
<!--suppress UnresolvedMavenProperty -->
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>project</groupId>
<artifactId>SubModule1</artifactId>
<version>1.0.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>project</groupId>
<artifactId>SubModule2</artifactId>
<version>1.0.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>project</groupId>
<artifactId>SubModule3</artifactId>
<version>1.0.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ear-plugin</artifactId>
<version>3.0.2</version>
<configuration>
<defaultLibBundleDir>lib</defaultLibBundleDir>
<modules>
<webModule>
<groupId>project</groupId>
<artifactId>SubModule3</artifactId>
<contextRoot>${context.root}</contextRoot>
</webModule>
</modules>
</configuration>
</plugin>
</plugins>
</build>
</project>
*** module3 EAR ***
<?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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>project</groupId>
<artifactId>project</artifactId>
<version>1.0.0</version>
</parent>
<artifactId>module3</artifactId>
<packaging>ear</packaging>
<description>This is the EAR POM file</description>
<dependencies>
<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>module1</artifactId>
<type>jar</type>
</dependency>
<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>module2</artifactId>
<type>pom</type>
</dependency>
</dependencies>
<build>
<finalName>${project.parent.artifactId}</finalName>
<plugins>
<!--EAR plugin: format of output file -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ear-plugin</artifactId>
<version>${version.ear.plugin}</version>
<configuration>
<version>8</version>
<defaultLibBundleDir>lib</defaultLibBundleDir>
<modules>
</modules>
<outputFileNameMapping>#{artifactId}##{dashClassifier?}#.#{extension}#</outputFileNameMapping>
</configuration>
</plugin>
<plugin>
<groupId>org.wildfly.plugins</groupId>
<artifactId>wildfly-maven-plugin</artifactId>
<configuration>
<skip>false</skip>
</configuration>
</plugin>
</plugins>
</build>
</project>

The following declarations in the parent POM seem strange:
<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>module1</artifactId>
<version>${project.version}</version>
<type>jar</type>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>module2</artifactId>
<version>${project.version}</version>
<type>pom</type>
<scope>provided</scope>
</dependency>
They might cause the described problems.

why maven fails to build for this project

I am using maven 3.6 in Ubuntu. My 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>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.techprimers.serverless</groupId>
<artifactId>spring-cloud-function-example</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>spring-cloud-function-example</name>
<description>Demo project for Spring Boot with Spring Cloud Function</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Greenwich.SR2</spring-cloud.version>
<wrapper.version>1.0.3.BUILD-SNAPSHOT</wrapper.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-function-adapter-aws</artifactId>
<version>3.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-lambda-java-core</artifactId>
<version>1.2.0</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-lambda-java-events</artifactId>
<version>2.2.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Greenwich.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-deploy-plugin</artifactId>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.boot.experimental</groupId>
<artifactId>spring-boot-thin-layout</artifactId>
<version>1.0.10.RELEASE</version>
</dependency>
</dependencies>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<configuration>
<createDependencyReducedPom>false</createDependencyReducedPom>
<shadedArtifactAttached>true</shadedArtifactAttached>
<shadedClassifierName>aws</shadedClassifierName>
</configuration>
</plugin>
</plugins>
</build>
</project>
I get error as:-
Error:(7,8) java: cannot access org.springframework.cloud.function.context.AbstractSpringFunctionAdapterInitializer
What is wrong here? How do I fix it?

I tried various older and newer versions of spring-cloud-function-adapter-aws. I managed to compile by the following version.
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-function-adapter-aws</artifactId>
<version>1.0.1.RELEASE</version>
</dependency>

Maven plugin external dependencies are not resolved

I am writing a maven plugin using Mojo classes. The plugin requires a dependency called jcifs and included it in the pom.xml of the plugin. I am able build the plugin and it is deployed into my local repository. I can find the jar file and pom.xml in my local repository.
When I use this plugin in another project in my local system, when executing the plugin goal, I am getting an exception saying the class not found. But the class is coming from the jcifs jar and it is included as part of the dependency for my plugin.
I am not able to figure out what I am missing here. Any help is appreciated
Following is the plugin 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>
<groupId>com.mayuran19.maven.plugin</groupId>
<artifactId>LocalToRemoteRepo</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>maven-plugin</packaging>
<name>localtoremoterepo-maven-plugin</name>
<properties>
<mavenVersion>3.2.1</mavenVersion>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-plugin-api</artifactId>
<version>3.5.0</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-core</artifactId>
<version>${mavenVersion}</version>
</dependency>
<dependency>
<groupId>org.apache.maven.plugin-tools</groupId>
<artifactId>maven-plugin-annotations</artifactId>
<version>3.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jcifs</groupId>
<artifactId>jcifs</artifactId>
<version>1.3.17</version>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>${maven.compiler.source}</source>
<target>${maven.compiler.target}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-plugin-plugin</artifactId>
<version>3.3</version>
<executions>
<execution>
<id>default-descriptor</id>
<phase>process-classes</phase>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
</build>
Following show is the pom.xml of the project that use this plugin
<?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>
<groupId>com.mayuran19.maven.plugin</groupId>
<artifactId>LocalToRemoteRepo</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>localtoremoterepo-maven-plugin Test</name>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-core</artifactId>
<version>4.3.4.RELEASE</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.maven.shared</groupId>
<artifactId>maven-dependency-tree</artifactId>
<version>3.0.1</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>jcifs</groupId>
<artifactId>jcifs</artifactId>
<version>1.3.17</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>com.mayuran19.maven.plugin</groupId>
<artifactId>LocalToRemoteRepo</artifactId>
<version>1.0-SNAPSHOT</version>
<configuration>
<localRepoDir>C:/Users/smayuran.SITBCS/.m2/repository</localRepoDir>
<remoteRepoDir>smb://192.168.9.196/internal</remoteRepoDir>
<username>G3App</username>
<password>P#ssword$1</password>
</configuration>
</plugin>
</plugins>
</build>
Error I am getting is class not found exception from the library jcifs

You can do this way, if you want:
**Step 1:**Download the jar file to you local machine
**Step 2:**Moving you jar to you maven repo:Run as shown bellow
Example:
<dependency>
<groupId>org.mock-server</groupId>
<artifactId>mockserver-netty</artifactId>
<version>3.10.1</version>
</dependency>
mvn install:install-file -Dfile=C:\Users\username\Desktop\mockserver-netty-3.10.1.jar -DgroupId=org.mock-server -DartifactId=mockserver-netty -Dversion=3.10.1 -Dpackaging=jar

Maven sibling dependency issue in a multi module project

I have a multi module project with 1 main module (engine) and 2 sub modules (client and server)
engine (Main module)
- Client
- Server
When I try to use the server module in the client, It throws a compilation error that indicates that the server package was not found.
Please find all the 3 POM's below.
Engine POM
<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>
<groupId>dev.kasse</groupId>
<artifactId>engine</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<modules>
<module>server</module>
<module>client</module>
</modules>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.0.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
</dependency>
</dependencies>
Client pom
<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>dev.kasse</groupId>
<artifactId>engine</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>client</artifactId>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
**<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>server</artifactId>
<scope>test</scope>
<version>${project.version}</version>
</dependency>**
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
</dependency>
<dependency>
<groupId>commons-configuration</groupId>
<artifactId>commons-configuration</artifactId>
<version>1.10</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<forkCount>0</forkCount>
<reuseForks>true</reuseForks>
</configuration>
</plugin>
</plugins>
</build>
Server POM
<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>dev.kasse</groupId>
<artifactId>engine</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>server</artifactId>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-library</artifactId>
</dependency>
<dependency>
<groupId>com.jayway.jsonpath</groupId>
<artifactId>json-path</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-releases</id>
<name>Spring Releases</name>
<url>https://repo.spring.io/libs-release</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-releases</id>
<name>Spring Releases</name>
<url>https://repo.spring.io/libs-release</url>
</pluginRepository>
</pluginRepositories>
</project>

Your modules need
<packaging>jar</packaging>
to overwrite the
<packaging>pom</packaging>
from the parent file.

I have a similar project set-up, but your solution worked just fine for me.
Still one way that could maybe have solved it in your case, would be to define the version in the parent pom using the dependencyManagment
<dependencyManagement>
<dependencies>
<dependency>
<groupId>${groupId}</groupId>
<artifactId>server</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies>
</dependencyManagement>

The dependency to the server has "test" scope: this means that is will be not included in the runtime package
<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>server</artifactId>
<scope>test</scope> <!-- remove this tag -->
<version>${project.version}</version>
</dependency>
for more information on dependency scopes see: here

Ran into a similar problem. This seems to be caused by spring boots' packaging of jar. The Spring boot create an executable jar, sending the classes into BOOT-INF folder inside the jar.
Adding the following into the build\plugins section of the pom resolves the issue (client pom in the case here)
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>jar</goal>
</goals>
<configuration>
<forceCreation>true</forceCreation>
</configuration>
</execution>
</executions>
</plugin>
An alternative solution is here : Maven Multi-module dependency package not found

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