Exclude files from a submodule using maven is not working - maven

Question

I have a multi-module project is the following structure:
ROOT
Module A
-- A_pom.xml
Module B depends on Module A
-- src
--- com.mycompany
---- App 1
---- App 2
-- B_pom.xml
-- B_App1_pom.xml
-- B_App2_pom.xml
pom.xml <!-- default parent pom fiel -->
second_parent_pom.xml
The 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>company</groupId>
<artifactId>Parent</artifactId>
<version>0.0.1</version>
<packaging>pom</packaging>
<name>Parent</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<modules>
<module>module-A</module>
<module>module-B/</module>
</modules>
</project>
From ROOT directory mvn package helped me to build both jar files A.jar and B.jar (this include App 1 and App 2)
Now I am looking a way to build both jar files but that will include only App 1. But I have tried the following code but no result.
<build>
[...]
<resources>
<resource>
<directory>${basedir}</directory>
<excludes>
<exclude>/../Module_B/src/com/mycompany/App2</exclude>
</excludes>
</resource>
</resources>
</build>
When I try to specify the B_App2_pom.xml from ROOT directory, it is still pointing to "pom.xml" which make me get the same 2 jar files A.jar and B.jar instead of A.jar and B_App2.jar.
Also, I have tried to create another parent pom file that
The Second Parent 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>company</groupId>
<artifactId>SecondParent</artifactId>
<version>0.0.1</version>
<packaging>pom</packaging>
<name>SecondParent</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<modules>
<module>module-A/B_App1_pom.xml</module>
<module>module-B/B_App2_pom.xml</module>
</modules>
</project>