Conversion from String to BigDecimal do not with Cucumber on Scala -

i'm writing tests in cucumber scala code. have following step

when added product price 10.0 

and following step definition:

when( """^added product price ([\d\.]*)$""") {     (price: bigdecimal) => {      //something   } } 

i following error when run test intellij:

cucumber.runtime.cucumberexception: don't know how convert "10.0" scala.math.bigdecimal. try writing own converter:  @cucumber.deps.com.thoughtworks.xstream.annotations.xstreamconverter(bigdecimalconverter.class) public class bigdecimal {}    @ cucumber.runtime.parameterinfo.convert(parameterinfo.java:104)   @ cucumber.runtime.stepdefinitionmatch.transformedargs(stepdefinitionmatch.java:70)   @ cucumber.runtime.stepdefinitionmatch.runstep(stepdefinitionmatch.java:38)   @ cucumber.runtime.runtime.runstep(runtime.java:289)   @ cucumber.runtime.model.stepcontainer.runstep(stepcontainer.java:44)   @ cucumber.runtime.model.stepcontainer.runsteps(stepcontainer.java:39)   @ cucumber.runtime.model.cucumberscenario.run(cucumberscenario.java:40)   @ cucumber.runtime.model.cucumberfeature.run(cucumberfeature.java:116)   @ cucumber.runtime.runtime.run(runtime.java:120)   @ cucumber.runtime.runtime.run(runtime.java:108)   @ cucumber.api.cli.main.run(main.java:26)   @ cucumber.api.cli.main.main(main.java:16)   @ sun.reflect.nativemethodaccessorimpl.invoke0(native method)   @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:39)   @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:25)   @ java.lang.reflect.method.invoke(method.java:597)   @ com.intellij.rt.execution.application.appmain.main(appmain.java:134) 

i have tried implement own transformer can't adnotate scala.math.bigdecimal

class bigdecimalconverter extends  transformer[bigdecimal] {   override def transform(p1: string): bigdecimal = bigdecimal(p1) } 

do have suggestion why cucumber not loading cucumber.runtime.xstream.bigdecimalconverter?

as workaround i'm passing string , create bigdecimal using it.

when( """^added product price ([\d\.]*)$""") {   (price: string) => {     something(bigdecimal(price))   } }