diff --git a/release-notes/CREDITS-2.x b/release-notes/CREDITS-2.x
index 4b09dc529..6e68d4c2e 100644
--- a/release-notes/CREDITS-2.x
+++ b/release-notes/CREDITS-2.x
@@ -22,6 +22,7 @@ Ilya Ryzhenkov (@orangy)
 
 WrongWrong (@k163377)
 * #627: Merge creator cache for Constructor and Method
+* #628: Remove unnecessary cache
 
 # 2.14.0
 
diff --git a/release-notes/VERSION-2.x b/release-notes/VERSION-2.x
index 604d4de7c..8110a36db 100644
--- a/release-notes/VERSION-2.x
+++ b/release-notes/VERSION-2.x
@@ -23,6 +23,7 @@ Co-maintainers:
 #580: Lazy load UNIT_TYPE
  (contributed by Ilya R)
 #627: Merge creator cache for Constructor and Method
+#628: Remove unnecessary cache
 
 2.14.2 (28-Jan-2023)
 2.14.1 (21-Nov-2022)
diff --git a/src/main/kotlin/com/fasterxml/jackson/module/kotlin/KotlinNamesAnnotationIntrospector.kt b/src/main/kotlin/com/fasterxml/jackson/module/kotlin/KotlinNamesAnnotationIntrospector.kt
index 0f2e82ee7..565487f69 100644
--- a/src/main/kotlin/com/fasterxml/jackson/module/kotlin/KotlinNamesAnnotationIntrospector.kt
+++ b/src/main/kotlin/com/fasterxml/jackson/module/kotlin/KotlinNamesAnnotationIntrospector.kt
@@ -63,7 +63,7 @@ internal class KotlinNamesAnnotationIntrospector(val module: KotlinModule, val c
     private fun hasCreatorAnnotation(member: AnnotatedConstructor): Boolean {
         // don't add a JsonCreator to any constructor if one is declared already
 
-        val kClass = cache.kotlinFromJava(member.declaringClass as Class<Any>)
+        val kClass = member.declaringClass.kotlin
             .apply { if (this in ignoredClassesForImplyingJsonCreator) return false }
         val kConstructor = cache.kotlinFromJava(member.annotated as Constructor<Any>) ?: return false
 
diff --git a/src/main/kotlin/com/fasterxml/jackson/module/kotlin/ReflectionCache.kt b/src/main/kotlin/com/fasterxml/jackson/module/kotlin/ReflectionCache.kt
index 81400e869..97a925a5c 100644
--- a/src/main/kotlin/com/fasterxml/jackson/module/kotlin/ReflectionCache.kt
+++ b/src/main/kotlin/com/fasterxml/jackson/module/kotlin/ReflectionCache.kt
@@ -8,11 +8,9 @@ import com.fasterxml.jackson.databind.util.LRUMap
 import java.lang.reflect.Constructor
 import java.lang.reflect.Executable
 import java.lang.reflect.Method
-import kotlin.reflect.KClass
 import kotlin.reflect.KFunction
 import kotlin.reflect.jvm.kotlinFunction
 
-
 internal class ReflectionCache(reflectionCacheSize: Int) {
     sealed class BooleanTriState(val value: Boolean?) {
         class True : BooleanTriState(true)
@@ -34,17 +32,11 @@ internal class ReflectionCache(reflectionCacheSize: Int) {
         }
     }
 
-    private val javaClassToKotlin = LRUMap<Class<Any>, KClass<Any>>(reflectionCacheSize, reflectionCacheSize)
     private val javaConstructorToKotlin = LRUMap<Constructor<Any>, KFunction<Any>>(reflectionCacheSize, reflectionCacheSize)
     private val javaMethodToKotlin = LRUMap<Method, KFunction<*>>(reflectionCacheSize, reflectionCacheSize)
     private val javaExecutableToValueCreator = LRUMap<Executable, ValueCreator<*>>(reflectionCacheSize, reflectionCacheSize)
     private val javaConstructorIsCreatorAnnotated = LRUMap<AnnotatedConstructor, Boolean>(reflectionCacheSize, reflectionCacheSize)
     private val javaMemberIsRequired = LRUMap<AnnotatedMember, BooleanTriState?>(reflectionCacheSize, reflectionCacheSize)
-    private val kotlinGeneratedMethod = LRUMap<AnnotatedMethod, Boolean>(reflectionCacheSize, reflectionCacheSize)
-
-
-    fun kotlinFromJava(key: Class<Any>): KClass<Any> = javaClassToKotlin.get(key)
-            ?: key.kotlin.let { javaClassToKotlin.putIfAbsent(key, it) ?: it }
 
     fun kotlinFromJava(key: Constructor<Any>): KFunction<Any>? = javaConstructorToKotlin.get(key)
             ?: key.kotlinFunction?.let { javaConstructorToKotlin.putIfAbsent(key, it) ?: it }
@@ -89,7 +81,4 @@ internal class ReflectionCache(reflectionCacheSize: Int) {
 
     fun javaMemberIsRequired(key: AnnotatedMember, calc: (AnnotatedMember) -> Boolean?): Boolean? = javaMemberIsRequired.get(key)?.value
             ?: calc(key).let { javaMemberIsRequired.putIfAbsent(key, BooleanTriState.fromBoolean(it))?.value ?: it }
-
-    fun isKotlinGeneratedMethod(key: AnnotatedMethod, calc: (AnnotatedMethod) -> Boolean): Boolean = kotlinGeneratedMethod.get(key)
-            ?: calc(key).let { kotlinGeneratedMethod.putIfAbsent(key, it) ?: it }
 }