Groovy RESTClient returns error #3152

Hi.

I'd like to use RESTClient(groovyx.net.http.RESTClient) in my step.

When I create RESTClient instance, it returns error with below.
Could anyone help?

(I already include below jar files at /plugins/com.pmease.quickbuild.libs/ )
apache-collections-commons-collections-3.1.jar apache-httpcomponents-httpcore.jar httpclient-4.2.jar json-lib.jar
apache-httpcomponents-httpclient.jar http-builder-0.7.3-20140519.065827-1.jar xml-resolver-1.2.jar


groovy:
import groovyx.net.http.RESTClient
import static groovyx.net.http.ContentType.*

def test = new groovyx.net.http.RESTClient("http://www.someurl.com")
def resp = test.get( path : "/rest/resource")

println resp.data.text
assert resp.status == 200
assert resp.contentType == XML.toString()

ERROR - Step 'master> stage>Test Groovy HTTP' is failed: java.lang.NoClassDefFoundError: groovy/lang/Closure
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2615)
at java.lang.Class.getDeclaredMethods(Class.java:1860)
at org.codehaus.groovy.reflection.CachedClass$3$1.run(CachedClass.java:84)
at java.security.AccessController.doPrivileged(Native Method)
at org.codehaus.groovy.reflection.CachedClass$3.initValue(CachedClass.java:81)
at org.codehaus.groovy.reflection.CachedClass$3.initValue(CachedClass.java:79)
at org.codehaus.groovy.util.LazyReference.getLocked(LazyReference.java:46)
at org.codehaus.groovy.util.LazyReference.get(LazyReference.java:33)
at org.codehaus.groovy.reflection.CachedClass.getMethods(CachedClass.java:250)
at groovy.lang.MetaClassImpl.populateMethods(MetaClassImpl.java:307)
at groovy.lang.MetaClassImpl.fillMethodIndex(MetaClassImpl.java:286)
at groovy.lang.MetaClassImpl.initialize(MetaClassImpl.java:2936)
at org.codehaus.groovy.reflection.ClassInfo.getMetaClassUnderLock(ClassInfo.java:166)
at org.codehaus.groovy.reflection.ClassInfo.getMetaClass(ClassInfo.java:182)
at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl.getMetaClass(MetaClassRegistryImpl.java:227)
at org.codehaus.groovy.runtime.InvokerHelper.getMetaClass(InvokerHelper.java:751)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.createCallConstructorSite(CallSiteArray.java:71)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:54)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:182)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:190)
at script14265050634661945325700.run(script14265050634661945325700.groovy:5)