Use plain JsonMapper in JsonIoSpec

Author: emlun

webauthn-server-core/build.gradle.kts

@@ -26,6 +26,7 @@ dependencies {
   testImplementation(platform(project(":test-platform")))
   testImplementation(project(":yubico-util-scala"))
   testImplementation("com.fasterxml.jackson.core:jackson-databind")
+  testImplementation("com.fasterxml.jackson.datatype:jackson-datatype-jdk8")
   testImplementation("com.upokecenter:cbor")
   testImplementation("junit:junit")
   testImplementation("org.bouncycastle:bcpkix-jdk18on")

webauthn-server-core/src/test/scala/com/yubico/webauthn/data/JsonIoSpec.scala

@@ -27,9 +27,11 @@ package com.yubico.webauthn.data
 import com.fasterxml.jackson.core.`type`.TypeReference
 import com.fasterxml.jackson.databind.ObjectMapper
 import com.fasterxml.jackson.databind.exc.ValueInstantiationException
+import com.fasterxml.jackson.databind.json.JsonMapper
 import com.fasterxml.jackson.databind.node.BooleanNode
 import com.fasterxml.jackson.databind.node.ObjectNode
 import com.fasterxml.jackson.databind.node.TextNode
+import com.fasterxml.jackson.datatype.jdk8.Jdk8Module
 import com.yubico.internal.util.JacksonCodecs
 import com.yubico.webauthn.AssertionRequest
 import com.yubico.webauthn.AssertionResult
@@ -55,7 +57,11 @@ class JsonIoSpec
     with Matchers
     with ScalaCheckDrivenPropertyChecks {
 
-  def json: ObjectMapper = JacksonCodecs.json()
+  val json: ObjectMapper =
+    JsonMapper
+      .builder()
+      .addModule(new Jdk8Module())
+      .build()
 
   describe("The class") {