KTOR-1264 Add java.util.UUID to jvm conversion (#2188)

Co-authored-by: hfhbd <hfhbd@users.noreply.github.com>

ktor-utils/jvm/src/io/ktor/util/converters/ConversionServiceJvm.kt

@@ -5,6 +5,7 @@
 package io.ktor.util.converters
 
 import java.math.*
+import java.util.*
 import kotlin.reflect.*
 
 @OptIn(ExperimentalStdlibApi::class)
@@ -34,6 +35,7 @@ private fun convertSimpleTypes(value: String, klass: KClass<*>): Any? = when (kl
     java.lang.Character::class -> value[0]
     BigDecimal::class -> BigDecimal(value)
     BigInteger::class -> BigInteger(value)
+    UUID::class -> UUID.fromString(value)
     else -> null
 }
 
@@ -53,6 +55,7 @@ internal actual fun platformDefaultToValues(value: Any): List<String>? {
         is java.lang.Character -> listOf(value.toString())
         is BigDecimal -> listOf(value.toString())
         is BigInteger -> listOf(value.toString())
+        is UUID -> listOf(value.toString())
         else -> null
     }
 }

ktor-utils/jvm/test/io/ktor/tests/utils/converters/DataConversionTest.kt

@@ -7,6 +7,7 @@ package io.ktor.tests.utils.converters
 import io.ktor.util.converters.*
 import io.ktor.util.reflect.*
 import java.math.*
+import java.util.*
 import kotlin.test.*
 
 class DataConversionTest {
@@ -56,4 +57,14 @@ class DataConversionTest {
         val toValues = DefaultConversionService.toValues(converted)
         assertEquals(listOf("B"), toValues)
     }
+
+    @Test
+    fun testDefaultConversionUUID() {
+        val id = UUID.randomUUID()
+        val converted = DefaultConversionService.fromValues(listOf(id.toString()), typeInfo<UUID>())
+        assertEquals(id, converted)
+
+        val toValues = DefaultConversionService.toValues(converted)
+        assertEquals(listOf(id.toString()), toValues)
+    }
 }