public Object getThis() {
                return mi.getThis();
            }
Creates a {@link MethodInvocation MethodInvocation} that wraps an
{@link org.aopalliance.intercept.MethodInvocation org.aopalliance.intercept.MethodInvocation} instance,
enabling Shiro Annotations in <a href="http://aopalliance.sourceforge.net/">AOP Alliance</a> environments
(Spring, etc.).

@param implSpecificMethodInvocation AOP Alliance {@link org.aopalliance.intercept.MethodInvocation MethodInvocation}
@return a Shiro {@link MethodInvocation MethodInvocation} instance that wraps the AOP Alliance instance.
support/spring/src/main/java/org/apache/shiro/spring/security/interceptor/AopAllianceAnnotationsAuthorizingMethodInterceptor.java