public boolean equals(Object obj) {
        if (obj == this) {
            return true;   
        }
        if (!(obj instanceof BorderArrangement)) {
            return false;   
        }
        BorderArrangement that = (BorderArrangement) obj;
        if (!ObjectUtilities.equal(this.topBlock, that.topBlock)) {
            return false;   
        }
        if (!ObjectUtilities.equal(this.bottomBlock, that.bottomBlock)) {
            return false;   
        }
        if (!ObjectUtilities.equal(this.leftBlock, that.leftBlock)) {
            return false;   
        }
        if (!ObjectUtilities.equal(this.rightBlock, that.rightBlock)) {
            return false;   
        }
        if (!ObjectUtilities.equal(this.centerBlock, that.centerBlock)) {
            return false;   
        }
        return true;
    }