@Override
  public void init() {
    registerBeanDefinitionParser("mock", new MockBeanDefinitionParser());
    registerBeanDefinitionParser("spy", new MockBeanDefinitionParser());
    registerBeanDefinitionParser("stub", new MockBeanDefinitionParser());
    registerBeanDefinitionParser("wrapWithSpy", new WrapWithSpyBeanDefinitionParser());
  }
Adds support for the spock namespace.

Spring integration of spock mocks is heavily inspired by
Springokito {@see https://bitbucket.org/kubek2k/springockito}.

@author Leonard Bruenings
spock-spring/src/main/java/org/spockframework/spring/xml/SpockNamespaceHandler.java