java-client's NewSessionPayload.class conflict with selenium's NewSessionPayload.class

OS: Windows 10
Selenium Version: 3.9.1
Browser: Firefox
Browser Version: 59.0.2 (64-bit)

Expected Behavior

When start Firefox driver will call class NewSessionPageload.java of selenium instead call NewSessionPageload.java of java-client.

Actual Behavior

When start Firefox driver called class NewSessionPageload.java of java-client instead call NewSessionPageload.java of selenium.
Error message.
Exception in thread "main" org.openqa.selenium.InvalidArgumentException: firefox_profile is not the name of a known capability or extension capability

Steps to reproduce

Please run source code to reproduce :


   public class FirefoxTest {
	public static void main(String[] args) {
         // declaration and instantiation of objects/variables
        System.setProperty("webdriver.gecko.driver", "/path/to/geckodriver_win64.exe");          
        FirefoxProfile ffprofile = new FirefoxProfile();
    	FirefoxOptions firefoxOptions = new FirefoxOptions();
    	firefoxOptions.setProfile(ffprofile);
	WebDriver driver = new FirefoxDriver(firefoxOptions);
        String baseUrl = "http://demo.guru99.com/test/newtours/";
        String expectedTitle = "Welcome: Mercury Tours";
        String actualTitle = "";
        driver.get(baseUrl);
        // get the actual value of the title
        actualTitle = driver.getTitle();
        /*
         * compare the actual title of the page with the expected one and print
         * the result as "Passed" or "Failed"
         */
        if (actualTitle.contentEquals(expectedTitle)){
            System.out.println("Test Passed!");
        } else {
            System.out.println("Test Failed");
        }     
        //close Fire fox
         driver.close();
           }
       }

------------------------------------------pom.xml file------------------------------------------------------

      <?xml version="1.0" encoding="UTF-8"?>
<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>DemoFirefoxDriver</groupId>
<artifactId>DemoFirefoxDriver</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
	<selenium.webdriver.version>3.9.1</selenium.webdriver.version>
</properties>
<build>
	<plugins>
		<plugin>
			<!-- Build an executable JAR -->
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-jar-plugin</artifactId>
		</plugin>
	</plugins>
</build>
<dependencies>
	<dependency>
		<groupId>io.appium</groupId>
		<artifactId>java-client</artifactId>
		<version>6.0.0-BETA3</version>
	</dependency>
	<dependency>
		<groupId>org.seleniumhq.selenium</groupId>
		<artifactId>selenium-server</artifactId>
		<version>${selenium.webdriver.version}</version>
		<exclusions>
			<exclusion> <!-- declare the exclusion here -->
				<groupId>org.apache.httpcomponents</groupId>
				<artifactId>httpclient</artifactId>
			</exclusion>
			<exclusion>
				<groupId>xalan</groupId>
				<artifactId>xalan</artifactId>
			</exclusion>
		</exclusions>
	</dependency>
            <dependency>
		<groupId>org.seleniumhq.selenium</groupId>
		<artifactId>selenium-java</artifactId>
		<version>${selenium.webdriver.version}</version>
		<exclusions>
			<exclusion>
				<groupId>org.seleniumhq.selenium</groupId>
				<artifactId>selenium-firefox-driver</artifactId>
			</exclusion>
			<exclusion>
				<groupId>xalan</groupId>
				<artifactId>xalan</artifactId>
			</exclusion>
		</exclusions>
	</dependency>
	<!-- https://mvnrepository.com/artifact/org.seleniumhq.selenium/selenium-firefox-driver -->
	<dependency>
		<groupId>org.seleniumhq.selenium</groupId>
		<artifactId>selenium-firefox-driver</artifactId>
		<version>${selenium.webdriver.version}</version>
	</dependency>

	<!-- https://mvnrepository.com/artifact/org.seleniumhq.selenium/selenium-ie-driver -->
	<dependency>
		<groupId>org.seleniumhq.selenium</groupId>
		<artifactId>selenium-ie-driver</artifactId>
		<version>${selenium.webdriver.version}</version>
	</dependency>

	<!-- https://mvnrepository.com/artifact/org.seleniumhq.selenium/selenium-chrome-driver -->
	<dependency>
		<groupId>org.seleniumhq.selenium</groupId>
		<artifactId>selenium-chrome-driver</artifactId>
		<version>${selenium.webdriver.version}</version>
	</dependency>

	<!-- https://mvnrepository.com/artifact/org.seleniumhq.selenium/selenium-edge-driver -->
	<dependency>
		<groupId>org.seleniumhq.selenium</groupId>
		<artifactId>selenium-edge-driver</artifactId>
		<version>${selenium.webdriver.version}</version>
	</dependency>

	<!-- https://mvnrepository.com/artifact/org.seleniumhq.selenium/selenium-safari-driver -->
	<dependency>
		<groupId>org.seleniumhq.selenium</groupId>
		<artifactId>selenium-safari-driver</artifactId>
		<version>${selenium.webdriver.version}</version>
	</dependency>
	<dependency>
		<groupId>com.google.guava</groupId>
		<artifactId>guava</artifactId>
		<version>24.0-jre</version>
	</dependency>
</dependencies>

This is a bug of java-client?
Do Anyone have the workaround for this issue? Please advice me. Thank in advance!