Cannot delete file when starting browser session when using maven selenium plugin

pom.xml looks like

<build>    
    <plugins>
        <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>selenium-maven-plugin</artifactId>
                <version>1.0</version>
                <executions>
                    <execution>
                        <phase>pre-integration-test</phase>
                        <goals>
                            <goal>start-server</goal>
                        </goals>
                        <configuration>
                            <background>true</background>            
                            <logOutput>true</logOutput>                             
                            <browserSessionReuse>true</browserSessionReuse>                             
                        </configuration>
                </execution>
            </executions>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <configuration>
                <!-- Skip the normal tests, we'll run them in the integration-test phase -->
                <skip>true</skip>
            </configuration>

            <executions>  
                  <execution>
                    <id>integration-tests</id>
                    <phase>integration-test</phase>
                    <goals>
                        <goal>test</goal>
                    </goals>
                    <configuration>
                        <skip>false</skip>
                    </configuration>
                </execution>  
            </executions>  
        </plugin>
    </plugins>
</build>

JUnit TestCase

@Before
public void setUp() throws Exception {

    selenium = new DefaultSelenium("localhost", 4444, "*firefox", "http://www.google.co.in/");
    selenium.start();
}

@Test
public void testUntitled() throws Exception {
    selenium.open("/");
    selenium.type("q", "Selenium Sucks");
}

@After
public void tearDown() throws Exception {
    selenium.stop();
}

I get this error message when fulfilling the mvn integration-test target . I have a simple test file that opens a Firefox browser and searches for sometext in the Googe search bar.

At the moment, I have also reinstalled the Firefox browser, but it does not work again.

:  java.lang.RuntimeException: Selenium: : C:\DOCUME ~ 1\ADMINI ~ 1\LOCALS ~ 1\Temp\customProfileDirb66b3e06cba84cc1b55eb72a418a5c61\parent.lock      at com.thoughtworks.selenium.DefaultSelenium.start(DefaultSelenium.java:89)        org.argus.selenium.timepass.TestSelenium.setUp(TestSelenium.java:16)

- mvn.