Maven - reactors (aggregation)

I have a maven project with the following directory structure:

trunk
|    pom.xml
|    coreutils
|            |    pom.xml
|            |    src
|    budgetCap
|            |    pom.xml
|            |    src

      

        
        
        
      

    

Trunk / pom.xml content:

<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              
hxttp://maven.apache.org/maven-v4_0_0.xsd">

<modelVersion>4.0.0</modelVersion>

<groupId>Ant2Maven</groupId>
<artifactId>parent</artifactId>
<version>1.0</version>

<packaging>pom</packaging>
<name>Parent Pom</name>

<modules>

    <module>coreutils</module>
    <module>budgetCap</module>

</modules>

      

        
        
        
      

    

In this structure, "budgetCap" depends on "coreutils", i.e. pom.xml "budgetCap" contains a dependency on "coreutils"

Now I have two methods to create this project

First method Aggregation using a reactor

I will be inside trunk

So first of all I am doing mvn clean

shakim:trunk shakim.md$ mvn clean

      

        
        
        
      

    

Maven removes the target folder of the two modules in the following order:

[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO] 
[INFO] coreutils
[INFO] budgetCap Maven Webapp
[INFO] Parent Pom

      

        
        
        
      

    

Now when I do mvn install

shakim:trunk shakim.md$ mvn install

      

        
        
        
      

    

Maven starts creating modules in the following order:

[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO] 
[INFO] coreutils
[INFO] budgetCap Maven Webapp
[INFO] Parent Pom

      

        
        
        
      

    

In this order, coreutils is successfully installed into the local repository. But budgetCap crashes on compilation giving an error that maven cannot find the class that coreutils should have created

the error message looks like this:

[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building budgetCap Maven Webapp 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ budgetCap ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 4 resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ budgetCap ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 65 source files to /Users/shakim.md/shakim/maven/ops/adq_services/trunk/budgetCap/target/classes
[INFO] -------------------------------------------------------------
[WARNING] COMPILATION WARNING : 
[INFO] -------------------------------------------------------------
[WARNING]/Users/shakim.md/shakim/maven/ops/adq_services/trunk/budgetCap/src/main/java/com/adiquity/budgetCap/core/SingletonAggregator.java: /Users/shakim.md/shakim/maven/ops/adq_services/trunk/budgetCap/src/main/java/com/adiquity/budgetCap/core/SingletonAggregator.java uses unchecked or unsafe operations.
[WARNING]/Users/shakim.md/shakim/maven/ops/adq_services/trunk/budgetCap/src/main/java/com/adiquity/budgetCap/core/SingletonAggregator.java: Recompile with -Xlint:unchecked for details.
[INFO] 2 warnings 
[INFO] -------------------------------------------------------------
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] /Users/shakim.md/shakim/maven/ops/adq_services/trunk/budgetCap/src/main/java/com/adiquity/budgetCap/core/BudgetCapServer.java:[41,34] package com.adiquity.request.utils does not exist
[ERROR] /Users/shakim.md/shakim/maven/ops/adq_services/trunk/budgetCap/src/main/java/com/adiquity/budgetCap/utils/Utils.java:[9,34] package com.adiquity.request.utils does not exist
[ERROR] /Users/shakim.md/shakim/maven/ops/adq_services/trunk/budgetCap/src/main/java/com/adiquity/budgetCap/log/data/parser/ConversionParser.java:[16,34] package com.adiquity.request.utils does not exist

      

        
        
        
      

    

In short, this package com.adiquity.request.utils is actually present in coreutils , which should successfully find this budgetCap module , but it is not.

Method two

Go inside coreutils and do

shakim:coreutils shakim.md$ mvn clean install

      

        
        
        
      

    

Go inside budgetCap and do

shakim:budgetCap shakim.md$ mvn clean install

      

        
        
        
      

    

budgetCap compiles successfully without reporting any errors.

My question is I want to use Reactors in Maven and I can't figure out why the build doesn't work using the 1st method whereas the 2nd build method completes smoothly ??

I'm not sure how to use reactors, we need to include anything in the pom of coreutils and budgetCap meaning the pom of trunk is the parent.

Note. I don't want to use inheritance in this project