Compile error when packaging maven project - maven-3

Question

I'm using datanucleus/mongodb. I recently converted my dynamic web project to maven in Eclipse because I wanted to use the maven buildnumber plugin. However I am just trying to get it to work now in maven. I do not have issues getting my simple projects to compile and run with Eclipse.
My projects are divided into 3 - main, LibA, LibAA.
Main relies/uses stuff in LibA (or directly from LibAA as well) and LibA relies/uses stuff from LibAA. LibAA doesn't know of other projects.
Example:
LibAA - DObject data class file
LibA - DRemote inherits from DObject
Main - DStaff inherits from DObject
That's how I set the dependencies in Pom xml.
So the issue here is that whenever I tried mvn clean package/install in Main project, I always get symbol not found for the data classes files that inherits from LibAA.
Datanucleus query says DStaff has been renamed to QDStaff, then later further down the process, it says DObject could not be found. Is it because DObject has been internally renamed to QDObject as well, hence it is too late to find them?
2 questions.
1: why is my data files being renamed. I.e a Q character is prependded
2: why am I still getting the symbol not found error despite calling datanucleus enhancer and correctly setting the dependencies? I have no problems with standalone data class files but only those that inherits DObject is the LibAA project.
I seems to have been missing something..
Any insights is appreciated.
edit: added a example partial compile log (with most of the similar errors/log removed)
[INFO] --- maven-compiler-plugin:3.3:compile (default-compile) # MyMainProject ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 591 source files to /Users/rhs/gitnew/MyMainProject/MyMainProject/target/classes
DataNucleus : JDO Query - com.rhs.kms.data.DServerSettingRecord -> com.rhs.kms.data.QDServerSettingRecord
DataNucleus : JDO Query - com.rhs.kms.data.account.DStaffAccount -> com.rhs.kms.data.account.QDStaffAccount
DataNucleus : JDO Query - com.rhs.kms.data.DMenu -> com.rhs.kms.data.QDMenu
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /Users/rhs/gitnew/MyMainProject/MyMainProject/target/generated-sources/annotations/com/rhs/data/account/QDStaffAccount.java:[6,55] cannot find symbol
symbol: class QAuthAccount
location: package com.rhslib.account
[ERROR] /Users/rhs/gitnew/MyMainProject/MyMainProject/target/generated-sources/annotations/com/rhs/data/QDTableOrderingSettings.java:[6,65] cannot find symbol
symbol: class QDObject
location: package com.rhslib.database
[INFO] 10 errors
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 19.056 s
[INFO] Finished at: 2015-09-14T16:25:40+08:00
[INFO] Final Memory: 25M/300M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.3:compile (default-compile) on project MyMainProject: Compilation failure: Compilation failure:
[ERROR] /Users/rhs/gitnew/MyMainProject/MyMainProject/target/generated-sources/annotations/com/rhs/data/account/QDStaffAccount.java:[6,55] cannot find symbol
[ERROR] symbol: class QAuthAccount
[ERROR] location: package com.rhslib.account
[ERROR] /Users/rhs/gitnew/MyMainProject/MyMainProject/target/generated-sources/annotations/com/rhs/kms/data/QMenu.java:[6,47] cannot find symbol
[ERROR] symbol: class QDObject
[ERROR] location: package com.rhslib.database
edit2: This is an example of a file where it broke (taken from target/generated-sources/annotations/*)
package com.rhs.data.ARM;
import javax.jdo.query.*;
import org.datanucleus.api.jdo.query.*;
public class QDAccountApp extends com.rhslib.database.QDObject //error starts from QDObject
To iterate, DAccountApp exists in the main project. Main project depends on a lib named KMSLib, and KMSLib depends on a project named RHSLib. I have tried making Main project depend directly with both projects but to no avail.
edit3: attached my pom.xml from my Main project
<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>MainProject</groupId>
<artifactId>MainProject</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>MainProject</name>
<properties>
<maven.build.timestamp.format>yyyy/MM/dd hh:mm:ss a</maven.build.timestamp.format>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<encoding>UTF-8</encoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<build>
<sourceDirectory>src</sourceDirectory>
<resources>
<resource>
<directory>src</directory>
<excludes>
<exclude>**/*.java</exclude>
</excludes>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-maven-plugin</artifactId>
<version>4.0.1</version>
<configuration>
<api>JDO</api>
<props>${basedir}/datanucleus.properties</props>
<log4jConfiguration>${basedir}/log4j.properties</log4jConfiguration>
<verbose>true</verbose>
</configuration>
<executions>
<execution>
<phase>process-classes</phase>
<goals>
<goal>enhance</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
<archive>
<manifest>
<addDefaultSpecificationEntries>false</addDefaultSpecificationEntries>
<addDefaultImplementationEntries>false</addDefaultImplementationEntries>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>KMSLib</groupId>
<artifactId>KMSLib</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.jcabi</groupId>
<artifactId>jcabi-manifests</artifactId>
<version>2.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.jboss.spec.javax.servlet</groupId>
<artifactId>jboss-servlet-api_3.1_spec</artifactId>
<version>1.0.0.Final</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>3.3</version>
</dependency>
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>javax.json</groupId>
<artifactId>javax.json-api</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>javax.ejb</groupId>
<artifactId>javax.ejb-api</artifactId>
<version>3.2</version>
</dependency>
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.5.0-b01</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>oss.sonatype.org</id>
<url>https://oss.sonatype.org/content/repositories/snapshots/</url>
</repository>
<repository>
<id>maven2-repository.dev.java.net</id>
<name>Java.net Repository for Maven</name>
<url>http://download.java.net/maven/2/</url>
<layout>default</layout>
</repository>
<repository>
<id>DN_M2_Repo</id>
<name>DataNucleus Repository</name>
<url>http://www.datanucleus.org/downloads/maven2</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>DataNucleus_2</id>
<url>http://www.datanucleus.org/downloads/maven2/</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</project>
edit4: attached my .classpath file
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry including="**/*.java" kind="src" output="target/classes" path="src">
<attributes>
<attribute name="optional" value="true"/>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
<attributes>
<attribute name="maven.pomderived" value="true"/>
<attribute name="org.eclipse.jst.component.dependency" value="/WEB-INF/lib"/>
</attributes>
</classpathentry>
<classpathentry kind="con" path="org.eclipse.jst.server.core.container/org.jboss.ide.eclipse.as.core.server.runtime.runtimeTarget/WildFly 8.x Runtime">
<attributes>
<attribute name="owner.project.facets" value="jst.web"/>
</attributes>
</classpathentry>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
<classpathentry kind="output" path="target/classes"/>
</classpath>