Class not found issue while running the Test suit in Ready API

I am trying to migrate our test suites from Soap ui (open source) to Ready API, my test suit has a groovy script to load the test data from excel file, its was workings as expected in opensource but in read API the script is failing with the exception shown below

java.lang.NoClassDefFoundError: org/openxmlformats/schemas/spreadsheetml/x2006/main/CTExtensionList
	at java.lang.Class.getDeclaredMethods0(Native Method)
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
	at java.lang.Class.privateGetPublicMethods(Class.java:2902)
	at java.lang.Class.getMethods(Class.java:1615)
	at org.codehaus.groovy.reflection.stdclasses.CachedSAMClass.getSAMMethod(CachedSAMClass.java:164)
	at org.codehaus.groovy.reflection.ClassInfo.isSAM(ClassInfo.java:359)
	at org.codehaus.groovy.reflection.ClassInfo.createCachedClass(ClassInfo.java:349)
	at org.codehaus.groovy.reflection.ClassInfo.access$700(ClassInfo.java:41)
	at org.codehaus.groovy.reflection.ClassInfo$LazyCachedClassRef.initValue(ClassInfo.java:497)
	at org.codehaus.groovy.reflection.ClassInfo$LazyCachedClassRef.initValue(ClassInfo.java:488)
	at org.codehaus.groovy.util.LazyReference.getLocked(LazyReference.java:49)
	at org.codehaus.groovy.util.LazyReference.get(LazyReference.java:36)
	at org.codehaus.groovy.reflection.ClassInfo.getCachedClass(ClassInfo.java:111)
	at org.codehaus.groovy.reflection.ReflectionCache.getCachedClass(ReflectionCache.java:110)
	at org.codehaus.groovy.reflection.ParameterTypes.getParametersTypes0(ParameterTypes.java:81)
	at org.codehaus.groovy.reflection.ParameterTypes.getParameterTypes(ParameterTypes.java:67)
	at org.codehaus.groovy.reflection.CachedMethod.compareToMethod(CachedMethod.java:186)
	at org.codehaus.groovy.reflection.CachedMethod.compareTo(CachedMethod.java:142)
	at org.codehaus.groovy.reflection.CachedMethod$MyComparator.compare(CachedMethod.java:315)
	at java.util.Arrays.binarySearch0(Arrays.java:2545)
	at java.util.Arrays.binarySearch(Arrays.java:2482)
	at org.codehaus.groovy.reflection.CachedMethod.find(CachedMethod.java:68)
	at groovy.lang.MetaClassImpl.applyPropertyDescriptors(MetaClassImpl.java:2522)
	at groovy.lang.MetaClassImpl.setupProperties(MetaClassImpl.java:2261)
	at groovy.lang.MetaClassImpl.addProperties(MetaClassImpl.java:3302)
	at groovy.lang.MetaClassImpl.initialize(MetaClassImpl.java:3266)
	at org.codehaus.groovy.reflection.ClassInfo.getMetaClassUnderLock(ClassInfo.java:254)
	at org.codehaus.groovy.reflection.ClassInfo.getMetaClass(ClassInfo.java:285)
	at org.codehaus.groovy.reflection.ClassInfo.getMetaClass(ClassInfo.java:295)
	at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl.getMetaClass(MetaClassRegistryImpl.java:261)
	at org.codehaus.groovy.runtime.InvokerHelper.getMetaClass(InvokerHelper.java:871)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.createPojoSite(CallSiteArray.java:125)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.createCallSite(CallSiteArray.java:166)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
	at Script1.run(Script1.groovy:40)
	at com.eviware.soapui.support.scripting.groovy.SoapUIGroovyScriptEngine.run(SoapUIGroovyScriptEngine.java:98)
	at com.eviware.soapui.support.scripting.groovy.SoapUIProGroovyScriptEngineFactory$SoapUIProGroovyScriptEngine.run(SoapUIProGroovyScriptEngineFactory.java:82)
	at com.eviware.soapui.impl.wsdl.teststeps.WsdlGroovyScriptTestStep.run(WsdlGroovyScriptTestStep.java:164)
	at com.eviware.soapui.impl.wsdl.support.AbstractTestCaseRunner.runTestStep(AbstractTestCaseRunner.java:259)
	at com.eviware.soapui.impl.wsdl.testcase.WsdlTestCaseRunner.runCurrentTestStep(WsdlTestCaseRunner.java:50)
	at com.eviware.soapui.impl.wsdl.support.AbstractTestCaseRunner.internalRun(AbstractTestCaseRunner.java:169)
	at com.eviware.soapui.impl.wsdl.support.AbstractTestCaseRunner.internalRun(AbstractTestCaseRunner.java:1)
	at com.eviware.soapui.impl.wsdl.support.AbstractTestRunner.run(AbstractTestRunner.java:128)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: org.openxmlformats.schemas.spreadsheetml.x2006.main.CTExtensionList
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 50 more

I have already tried  placing the JAR

commons-collections4-4.1.jar

ooxml-schemas-1.3.jar

poi-3.16.jar

poi-ooxml-3.16.jar

poi-ooxml-schemas-3.16.jar

xmlbeans-2.5.0.jar

Ready API version :2.1.0

OS: Linux.

Thanks in Advance