How to execute multiple class defined under test method in testng.xml from POM.xml - maven

Question

Below is my testng.xml file code:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="SaferSystem" >
<parameter name="dev_URL" value="http://localhost:8383/" />
<test name="ChromeTest">
<parameter name="browser" value="Chrome" />
<parameter name="username" value="jayeshdp#weblineindia.com" />
<parameter name="password" value="System123" />
<classes>
<class name="com.safer.login.LoginTest" />
<class name="com.safer.login.DashboardTest"/>
</classes>
</test>
And below is my POM.xml code:
<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>SaferSystem</groupId>
<artifactId>SaferMavenProject</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>SaferMavenProject</name>
<url>http://maven.apache.org</url>
<build>
<sourceDirectory>src/main/java</sourceDirectory>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
<configuration>
<suiteXmlFiles>
<suiteXmlFile>testng.xml</suiteXmlFile>
</suiteXmlFiles>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>2.53.1</version>
</dependency>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>6.11</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.7</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.7</version>
</dependency>
</dependencies>
</project>
I want to execute "DashboardTest" java file but when I add "DashboardTest" line code does not executes. But if I keep only "LoginTest" class then code executes properly. How can I solve this issue as I have multiple classes to add under test.Please help as I am quite new for Maven and working on Maven project. Thanks in advance.