Issue with running SOAPUI testsuite on maven

[Seshan]

Hi,

I want to use SOAPUI in my project to automate the webservices (REST and SOAP).
I have installed soapui-4.6.2 and maven 3.0.5 on my system
I have created a small testsuite for REST services from SOAPUI 4.6.2. Executed the testsuite on the SOAPUI GUI and its working fine.
Now, I want to run this on Maven.

I created a maven project
%M2_HOME%\bin\mvn archetype:create -DgroupId=com.OMT_SOAPUI_test -DartifactId=test
this created src and pom.xml

I followed below links to configure the POM.xml
http://www.soapui.org/Test-Automation/maven-2x.html

when i execute >mvn com.smartbear.soapui:soapui-maven-plugin:4.6.2:test
i get below error

[ERROR] Plugin com.smartbear.soapui:soapui-maven-plugin:4.6.2 or one of its dependencies could not be resolved: Failed to read artifact descriptor for com.smartbear.soapui:soapui-maven-plugin:jar:4.6.2: Failure to find com.smartbear.soapui:
soapui-project:pom:4.6.2 in http://xxx:8081/artifactory/all-repos w
as cached in the local repository, resolution will not be reattempted until the
update interval of all-repos has elapsed or updates are forced -> [Help 1]

I even downloaded the soapui-maven-plugin-4.6.2.jar and soapui-maven-plugin-4.6.2.pom to the local repository. But still, I am getting this issue.
Need your help to resolve this at the earliest.