Upgrade kotlin version (#60)

* Fix integration redirect uri test

* Upgrade kotlin version

Author: adhesivee

oauth2-server-integration-base/src/main/java/nl/myndocs/oauth2/integration/BaseIntegrationTest.kt

@@ -84,7 +84,7 @@ abstract class BaseIntegrationTest {
                 .addPathSegment("authorize")
                 .setQueryParameter("response_type", "code")
                 .setQueryParameter("client_id", "testapp")
-                .setQueryParameter("redirect_uri", "http://localhost:$localPort/callback")
+                .setQueryParameter("redirect_uri", "http://localhost:8080/callback")
                 .build()
 
         val request = Request.Builder()
@@ -101,7 +101,7 @@ abstract class BaseIntegrationTest {
         val body = FormBody.Builder()
                 .add("grant_type", "authorization_code")
                 .add("code", response.header("location")!!.asQueryParameters()["code"])
-                .add("redirect_uri", "http://localhost:$localPort/callback")
+                .add("redirect_uri", "http://localhost:8080/callback")
                 .add("client_id", "testapp")
                 .add("client_secret", "testpass")
                 .build()

pom.xml

@@ -10,7 +10,7 @@
     <version>0.5.1-SNAPSHOT</version>
 
     <properties>
-        <kotlin.version>1.3.0</kotlin.version>
+        <kotlin.version>1.3.31</kotlin.version>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
     </properties>