Java Glue Code Between Functions

glue.java

class FooResult { 
   private int a;
   private boolean d;
   
   public FooResult(int a, boolean d) { this.a = a + 1 ; this.d = !d; }
   
   public int getA() { return a; }
   public boolean getD() { return b; }
}

// Very similar shape as FooResult, but has extra parameters.
// 
// Can't extend FooResult because it extends another class for some reason.
class BarResult extends SomeOtherClass { 
   private int a;
   private boolean d;
   private Date creationDate;
   
   public FooResult(int a, boolean d) { this.a = a + 1;
                                                 this.d = d;}
   
   public int getA() { return a; }
   public boolean getD() { return b; }
}

public FooResult foo(int a, string b, float c) { 
    return new FooResult(a, false);
};

public BarResult bar(int a, boolean d) {
   return new BarResult(a,d); 
}

public BarResult bar(FooResult f) {
  //Mapping parameters, specific to FooResult -> bar() parameters.
  return bar(f.getA(), f.getD()); 
}

public BazResult baz(FooResult f) {
  //Mapping parameters, specific to FooResult -> baz() parameters.
  return baz(f.getA(), f.getD());
}

public BazResult baz(BarResult b) {
  //Mapping parameters, specific to BarResult -> baz() parameters.
  return baz(b.getA(), b.getD());
}

public BazResult baz(int a, boolean d){
   return new BazResult(a, d); 
}

FooResult fooResult = foo(1,"hello",2.0); // a == 1, d == false
BarResult barResult = bar(f); // a == 2, d == false;
BazResult bazResult = baz(x); // a == 3, d == true