Merge two maven modules in one jar and have third module generate jar at specified location - maven

Question

I have been trying this now for 5 hours and not sure what am I missing.
I have following
+- parent
pom.xml
+- core-module
pom.xml
+- excel-module
pom.xml
+- client-module
pom.xml
+- assembly-module
pom.xml
I want to create one core.jar file for core-module and excel-module ( which I have achieved already) assembly-module/target/dist/server/core.jar
I want to create separate client.jar file at assembly-module/target/dist/client/client.jar
Following are my pom files.
core/pom.xml
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
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.test.project</groupId>
<artifactId>parent</artifactId>
<version>1.0.0.0-SNAPSHOT</version>
</parent>
<artifactId>core</artifactId>
<dependencies>
<dependency>
<groupId>com.test.project</groupId>
<artifactId>excel</artifactId>
<version>${project.version}</version>
<scope>provided</scope>
</dependency>
</dependencies>
</project>
excel/pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>parent</artifactId>
<groupId>com.test.project</groupId>
<version>1.0.0.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>excel</artifactId>
<dependencies>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.3.2</version>
</dependency>
</dependencies>
</project>
client/pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>parent</artifactId>
<groupId>com.test.project</groupId>
<version>1.0.0.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>client</artifactId>
<packaging>jar</packaging>
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifestEntries>
<Build-Version>${project.version}</Build-Version>
</manifestEntries>
</archive>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>com.test.project</groupId>
<artifactId>core</artifactId>
<version>${project.version}</version>>
</dependency>
</dependencies>
assembly/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">
<parent>
<artifactId>parent</artifactId>
<groupId>com.test.project</groupId>
<version>1.0.0.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>assembly</artifactId>
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<id>assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<descriptors>
<descriptor>src/main/assembly- descriptor.xml</descriptor>
</descriptors>
<appendAssemblyId>false</appendAssemblyId>
<outputDirectory>${project.basedir}/target/dist/server/</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
<finalName>core</finalName>
</build>
<dependencies>
<dependency>
<groupId>com.test.project</groupId>
<artifactId>excel</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>com.test.project</groupId>
<artifactId>core</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies>
assembly/descriptor.xml
<assembly
xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd">
<id>all-jar</id>
<formats>
<format>jar</format>
</formats>
<includeBaseDirectory>false</includeBaseDirectory>
<dependencySets>
<dependencySet>
<unpack>true</unpack>
<useTransitiveDependencies>false</useTransitiveDependencies>
</dependencySet>
</dependencySets>
</assembly>
in what way I need to update assembly.xml and/or descriptor.xml to achieve 2nd point. I have look almost all related posts here on SO
Any help is greatly appreciated.
EDIT
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<id>core-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<descriptors>
<descriptor>src/main/core-assembly-descriptor.xml</descriptor>
</descriptors>
<appendAssemblyId>false</appendAssemblyId>
<outputDirectory>${project.basedir}/target/dist/framework/lib/server/</outputDirectory>
<finalName>core.jar</finalName>
</configuration>
</execution>
<execution>
<id>client-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<descriptors>
<descriptor>src/main/client-descriptor.xml</descriptor>
</descriptors>
<appendAssemblyId>false</appendAssemblyId>
<outputDirectory>${project.basedir}/target/dist/framework/runtime/</outputDirectory>
<finalName>client.jar</finalName>
</configuration>
</execution>
</executions>
</plugin>
</plugins>

Answer 1

I would actually try to add another execution tag in the assembly/pom.xml as below:
<execution>
<id>assembly-client</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<descriptors>
<descriptor>src/main/client-assembly-descriptor.xml</descriptor>
</descriptors>
<appendAssemblyId>false</appendAssemblyId>
<outputDirectory>${project.basedir}/target/dist/client/</outputDirectory>
</configuration>
</execution>
And add a new assembly descriptor file (client-assembly-descriptor.xml) as below:
<assembly
xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd">
<id>all-jar</id>
<formats>
<format>jar</format>
</formats>
<includeBaseDirectory>false</includeBaseDirectory>
<dependencySets>
<dependencySet>
<unpack>true</unpack>
<useTransitiveDependencies>false</useTransitiveDependencies>
<includes>
<include>com.test.project:client</include>
</includes>
</dependencySet>
You will need to add the client jar as a dependency too in the assembly project.