Hi Guillaume Smet,

Thanks for fixing this issue. The way Kotlin interops with Java is a bit funky. If you are declaring properties in a constructor, like this:

data class TestData(
        @Test
        val test: Int
)

Without any @Target annotation, Kotlin only puts the annotation on the constructor argument and not the field. The decompiled Java code looks like this:

public final class TestData {
   private final int test;

   public final int getTest() {
      return this.test;
   }

   public TestData(@Test int test) {
      this.test = test;
   }
}
// with kotlin specific stuff removed

However, with the @Target annotation applied to the annotation interface, the decompiled code looks like this:

public final class TestData {
   @Test
   private final int test;

   public final int getTest() {
      return this.test;
   }

   public TestData(int test) {
      this.test = test;
   }
}

I am not exactly sure why it's done this way, but all the other Hibernate annotations work properly.