Maven build sub projects using root pom - maven

Question

I have different independent maven projects and want to build it with single pom. So I am using following 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>a.b</groupId>
<artifactId>my-sdk</artifactId>
<name>my-sdk</name>
<version>1.0</version>
<packaging>pom</packaging>
<description>Generating SDK</description>
<modules>
<module>project1</module>
<module>project2</module>
<module>project3</module>
</modules>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>2.9</version>
<executions>
<execution>
<id>process-sources</id>
<phase>process-classes</phase>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-antrun-plugin</artifactId>
<executions>
<execution>
<phase>process-classes</phase>
<configuration>
<tasks>
<ant antfile="build.xml" target="init" />
</tasks>
</configuration>
<goals>
<goal>run</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>jboss-repo</id>
<url>http://repository.jboss.org/maven2</url>
</repository>
</repositories>
I have the following questions:-
Javadoc is not generating, so where I am doing wrong. If I run "mvn javadoc:javadoc package" command it generates java doc. But if I run "mvn package" it doesn't.
In project2 there is assembly plugin to generate fat jar, it generates jar of project2 but unable to generate fat jar. If I build project2 independently it generate fat jar successfully.
Follwing section is from project2 pom to generate fat jar which works successfully if I run the build independently
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<appendAssemblyId>false</appendAssemblyId>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<configuration>
<archive>
<manifest>
<mainClass>[MAIN CLASS]</mainClass>
</manifest>
<manifestEntries>
<Class-Path>.</Class-Path>
</manifestEntries>
</archive>
</configuration>
<goals>
<goal>assembly</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
Any Suggestions.

Answer 1

I'd say check the documentation for both of your questions ;-)
javadoc (http://maven.apache.org/plugins/maven-javadoc-plugin/plugin-info.html)
javadoc:jar and javadoc:javadoc should not be used for an aggregator project, use javadoc:aggregate or (in your case) javadoc:aggregate-jar
assembly (http://maven.apache.org/plugins/maven-assembly-plugin/assembly-mojo.html)
first, assembly:assembly is deprecated and second, it should only be used on the command line. I guess using goal single will help.