@BeanProperty are not processed and do not result in Bean-like accessors to be generated

[zullnero]

The @BeanProperty annotation does not seem to be processed properly and does not result in Java Bean-like accessor methods being generated.

Please see sample scala code and resulting java class below:

$ cat Foo.scala

import scala.beans.BeanProperty
case class Foo(@BeanProperty var a: String)

$ scalac -version
Dotty compiler version 3.0.0-M1 -- Copyright 2002-2020, LAMP/EPFL
$ scalac Foo.scala
$ javap Foo.class
Compiled from "Foo.scala"

public class Foo implements scala.Product,java.io.Serializable {
public static <A> scala.Function1<java.lang.String, A> andThen(scala.Function1<Foo, A>);
public static Foo apply(java.lang.String);
public static <A> scala.Function1<A, Foo> compose(scala.Function1<A, java.lang.String>);
public static Foo fromProduct(scala.Product);
public static Foo unapply(Foo);
public Foo(java.lang.String);
public scala.collection.Iterator productIterator();
public scala.collection.Iterator productElementNames();
public int hashCode();
public boolean equals(java.lang.Object);
public java.lang.String toString();
public boolean canEqual(java.lang.Object);
public int productArity();
public java.lang.String productPrefix();
public java.lang.Object productElement(int);
public java.lang.String productElementName(int);
public java.lang.String a();
public void a_$eq(java.lang.String);
public Foo copy(java.lang.String);
public java.lang.String copy$default$1();
public java.lang.String _1();
}

No Bean-like getters or setters have been generated.

[michelou]

Quick comparaison with Scala 2.13.3 generated code:

• method unapply has a different return type.
• accessor methods getA and setA are generated with Scala 2.13 (@BeanProperty).
• method _1 is only generated with Scala 3.

public class Foo implements scala.Product,java.io.Serializable {
  // .. (same)
  public static scala.Option<java.lang.String> unapply(Foo);
  // .. (same)
  public java.lang.String getA();
  public void setA(java.lang.String);
  // .. (same)
  // public java.lang.String _1();
}