Do we need registration for accessing Spring Maven Repository???

[tiger.spring]

When I'm running any maven target e.g. clean or test on the roo project, I get following error

Caused by: org.apache.maven.wagon.authorization.AuthorizationException: Access denied to: http://maven.springframework.org/release/org/apache/maven/plugins/maven-clean-plugin/2.4.1/maven-clean-plugin-2.4.1.pom
        at org.apache.maven.wagon.providers.http.LightweightHttpWagon.fillInputData(LightweightHttpWagon.java:119)
        at org.apache.maven.wagon.StreamWagon.getInputStream(StreamWagon.java:116)
        at org.apache.maven.wagon.StreamWagon.getIfNewer(StreamWagon.java:88)
        at org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:61)
        at org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.run(WagonRepositoryConnector.java:605)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:896)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
        at java.lang.Thread.run(Thread.java:735)

Following repositories were added by roo to the ten-minutes project created

	<repositories>
        <repository>
            <id>spring-maven-release</id>
            <name>Spring Maven Release Repository</name>
            <url>http://maven.springframework.org/release</url>
        </repository>
        <repository>
            <id>spring-maven-milestone</id>
            <name>Spring Maven Milestone Repository</name>
            <url>http://maven.springframework.org/milestone</url>
        </repository>
        <repository>
            <id>spring-roo-repository</id>
            <name>Spring Roo Repository</name>
            <url>http://spring-roo-repository.springsource.org/release</url>
        </repository>
	<repository>
            <id>JBoss Repo</id>
            <url>https://repository.jboss.org/nexus/content/repositories/releases</url>
            <name>JBoss Repo</name>
        </repository>
    </repositories>

[tiger.spring]

It appears I get access denied when accessing it from behind a firewall.