If you plan to use Querydsl SQL there won't be a direct connection between the Querydsl generated classes and your JavaFX models, so there won't be any conflict.
If you plan to create Querydsl types based on annotated JavaFX model classes using APT instead then your JavaBean accessors will be used as the properties.
e.g.
class Bill {
private DoubleProperty amountDue = new SimpleDoubleProperty();
// this will be picked up by Querydsl and treated as a property
public double getAmountDue() {
return amountDue.get();
}
public void setAmountDue(double value) {
amountDue.set(value);
}
public DoubleProperty amountDueProperty() {
return amountDue;
}
}