@Override
    public boolean equals(Object obj) {
        if (obj == this) {
            return true;
        } else if (obj instanceof FactoryExpression) {
            FactoryExpression<?> c = (FactoryExpression<?>) obj;
            return args.equals(c.getArgs()) && getType().equals(c.getType());
        } else {
            return false;
        }
    }
Create a new QMap instance

@param args
querydsl-core/src/main/java/com/querydsl/core/types/QMap.java