val with simple camelCase and @JsonIgnore is included

[nilswieber]

Given the following code, i would presume that it prints an JSON Object with "message" as the only field:

import com.fasterxml.jackson.annotation.JsonIgnore
import com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.module.kotlin.KotlinModule

fun main(args: Array<String>) {
    println(ObjectMapper().registerModule(KotlinModule()).writeValueAsString(Test()))
}

class Test{
    @JsonIgnore
    val cCase = 1
    @JsonIgnore
    val camelCase = 1

    val message = "hello world"
}

If this code is run it prints:
{"message":"hello world","ccase":1}

The field cCase shouldn't be included. I think it's related to how the byte code is generated by the Kotlin Compiler. The class Test is translated to the following Java Code:

public final class Test {
   @JsonIgnore
   private final int cCase = 1;
   @JsonIgnore
   private final int camelCase = 1;
   @NotNull
   private final String message = "hello world";

   public final int getCCase() {
      return this.cCase;
   }

   public final int getCamelCase() {
      return this.camelCase;
   }

   @NotNull
   public final String getMessage() {
      return this.message;
   }
}

Notice that the getter for cCase is named getCCase().

[rkschamer]

I have the same issue. I've created some example project here, in case you want to try it: https://github.com/flawi/jackson-ignore-issue

And I also can confirm that the issue persists for

• Jackson: 2.9.8
• Kotlin: 1.3.21

[TrueShirshov]

I think link to workaround posted here can be helpful for someone. Just use @get:JsonIgnore annotation.

[hartmut-co-uk]

still a workaround only / extra annotations/code though :)

[k163377]

Issues last updated before 2020 are closed.
If the problem is reproduced in the latest version, please reopen.

[k163377]

This issue will be fixed in #630.