collidingMap.put("shirtColor", "white");
collidingMap.put("favoriteColor", "red");
this.collidesWithOne.setBackingMap(collidingMap);
this.oneAndTwoAndThree = new HashMap();
MultivaluedAttributeMerger merger = new MultivaluedAttributeMerger();
this.oneAndTwoAndThree = merger.mergeAttributes(this.oneAndTwoAndThree, sourceOneMap);
this.oneAndTwoAndThree = merger.mergeAttributes(this.oneAndTwoAndThree, sourceTwoMap);
this.oneAndTwoAndThree = merger.mergeAttributes(this.oneAndTwoAndThree, collidingMap);
}