No mapping found for HTTP request with URI… in DispatcherServlet with name

When performing a request to http://localhost:8080/SquirrelAuth/api/groups/.json I get this error:

Mar 24, 2015 5:55:52 PM org.springframework.web.servlet.PageNotFound noHandlerFound WARNING: No mapping found for HTTP request with URI [/SquirrelAuth/api/groups/.json] in DispatcherServlet with name 'dispatcher'

I've been spinning on this one forever and can't seem to find any answers out there that work for me. Can anyone help me through this?

Pom Dependencies/Properties

<properties>
    <spring.version>4.1.5.RELEASE</spring.version>
    <oauth.version>2.0.7.RELEASE</oauth.version>
    <taglibs.version>3.2.6.RELEASE</taglibs.version>
    <hibernate.version>4.3.5.Final</hibernate.version>
    <log4j.version>2.2</log4j.version>
    <jdk.version>1.7</jdk.version>
    <jackson.version>2.5.1</jackson.version>
    <jstl.version>1.2</jstl.version>
    <mysql.version>5.1.6</mysql.version>
    <liquibase.version>3.3.2</liquibase.version>
    <javax.version>3.1.0</javax.version>
    <mavenWar.version>2.6</mavenWar.version>
    <mavenCompiler.version>3.2</mavenCompiler.version>
</properties>
<dependencies>
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-core</artifactId>
        <version>${log4j.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security.oauth</groupId>
        <artifactId>spring-security-oauth2</artifactId>
        <version>${oauth.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-taglibs</artifactId>
        <version>${taglibs.version}</version>
    </dependency>
    <dependency>
        <groupId>jstl</groupId>
        <artifactId>jstl</artifactId>
        <version>${jstl.version}</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>${jackson.version}</version>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>${mysql.version}</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>${hibernate.version}</version>
    </dependency>
    <dependency>
        <groupId>org.liquibase</groupId>
        <artifactId>liquibase-core</artifactId>
        <version>${liquibase.version}</version>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>${javax.version}</version>
    </dependency>
</dependencies>

Web Application Intializer

public class WebInitializer implements WebApplicationInitializer {

    public void onStartup(ServletContext servletContext) throws ServletException {          
        WebApplicationContext context = getContext();
        servletContext.addListener(new ContextLoaderListener(context));    

        Dynamic servlet = servletContext.addServlet("dispatcher", new DispatcherServlet(context));  
        servlet.addMapping("/api/*");  
        servlet.setLoadOnStartup(1);  

    }  

    private AnnotationConfigWebApplicationContext getContext() {
        AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
        context.setConfigLocation("com.squirrels.config");
        return context;
    }

}

PersistenceJPAConfig

import java.util.Properties;

import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;

import liquibase.integration.spring.SpringLiquibase;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.JpaVendorAdapter;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@Configuration
@EnableTransactionManagement
@ComponentScan({ "com.squirrels.controller", "com.squirrels.services", "com.squirrels.persistence.dao" })
@PropertySource(value = { "classpath:squirrel.properties" })
public class PersistenceJPAConfig {

    @Autowired
    private Environment environment;

    @Bean
    public SpringLiquibase liquibase() {
        SpringLiquibase liquibase = new SpringLiquibase();
        liquibase.setDataSource(dataSource());
        liquibase.setDefaultSchema(environment.getRequiredProperty("db_schema"));
        liquibase.setChangeLog("classpath:/db/changelog/db.changelog-master.xml");

        return liquibase;
    }

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
        LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
        em.setDataSource(dataSource());
        em.setPackagesToScan(new String[] { "com.squirrels.persistence.model" });

        JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
        em.setJpaVendorAdapter(vendorAdapter);
        em.setJpaProperties(additionalProperties());

        return em;
    }

    @Bean
    public DataSource dataSource() {
        DriverManagerDataSource dataSource = new DriverManagerDataSource();
        dataSource.setDriverClassName(environment.getRequiredProperty("db_driverClass"));
        dataSource.setUrl(environment.getRequiredProperty("db_jdbcUrl"));
        dataSource.setUsername(environment.getRequiredProperty("db_user"));
        dataSource.setPassword(environment.getRequiredProperty("db_password"));
        return dataSource;
    }

    @Bean
    public PlatformTransactionManager transactionManager(EntityManagerFactory emf) {
        JpaTransactionManager transactionManager = new JpaTransactionManager();
        transactionManager.setEntityManagerFactory(emf);

        return transactionManager;
    }

    @Bean
    public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
        return new PersistenceExceptionTranslationPostProcessor();
    }

    Properties additionalProperties() {
        Properties properties = new Properties();
        properties.setProperty("hibernate.dialect", environment.getRequiredProperty("db_hibernateDialect"));
        return properties;
    }
}

Groups Controller

package com.squirrels.controller;

import java.util.List;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import com.squirrels.dto.GroupDTO;
import com.squirrels.services.GroupUtil;

@Controller
@RequestMapping("/api/groups")
public class GroupsController {

    @Autowired
    GroupUtil groupUtil;

    static final Logger logger = LogManager.getLogger(GroupsController.class);

    @RequestMapping(value = "/.json", method = RequestMethod.GET)
    public @ResponseBody List<GroupDTO> getGroups() {

        List<GroupDTO> groupList = null;
        try {
            groupList = groupUtil.getAll();

        } catch (Exception e) {
            e.printStackTrace();
        }

        return groupList;
    }
}