Method getOuterProperty

src/main/java/groovy/lang/MetaClassImpl.java:2155–2169

(final Class<?> sender, final Object object, final String name, final MissingPropertyException mpe)

    }

    private Object getOuterProperty(final Class<?> sender, final Object object, final String name, final MissingPropertyException mpe) {
        if (sender == theClass ? isGroovyObject() : GroovyObject.class.isAssignableFrom(sender)) {
            var outerClass = getNonClosureOuter(sender); // check outer class nesting of call site
            if (outerClass != null && (sender == theClass || sender.isAssignableFrom(theClass))) {
                MetaClass omc = registry.getMetaClass(outerClass);
                Object target = getOuterReference(sender, object);
                try {
                    return omc.getProperty(outerClass, target, name, false, false);
                } catch (MissingPropertyException e) {
                    mpe.addSuppressed(e);
                }
            }
        }
        throw mpe;
    }

    /**
     * Returns the effective readable meta property for a property access.