I am passing to velocity template comma separated values even though beginning I receive ParseErrorException. How you can repair it?

#set ($test=StringUtils.split($filterFieldCSV,","))

    #foreach ( $filterField in $test )
    <!-- process something here -->
#end



Caused by: org.apache.velocity.exception.ParseErrorException: Encountered "StringUtils" at t-50[line 3, column 12] Was expecting one of:
    "[" ...
    "{" ...
    "(" ...
    <WHITESPACE> ...
    <STRING_LITERAL> ...
    "true" ...
    "false" ...
    <INTEGER_LITERAL> ...
    <FLOATING_POINT_LITERAL> ...
    <IDENTIFIER> ...
    "{" ...
    <LOGICAL_NOT> ...
        at org.apache.velocity.Template.process(Template.java:141)  at org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource(ResourceManagerImpl.java:446)  at org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:354)   at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1400)   at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1380)   at org.apache.velocity.app.VelocityEngine.getTemplate(VelocityEngine.java:401)

I merely needed to possess the following statement:

#set($test=$filterFieldCSV.split(","))

rather than:

#set($test=StringUtils.split($filterFieldCSV,","))