Changed up testing, updated Kotlin version

build.gradle

@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.2.21'
+    ext.kotlin_version = '1.2.31'
     repositories {
         google()
         jcenter()
@@ -9,7 +9,6 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:3.1.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath "org.junit.platform:junit-platform-gradle-plugin:+"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -22,13 +21,12 @@ allprojects {
         jcenter()
     }
 
-    ext.kotlin_version = '1.2.21'
+    ext.kotlin_version = '1.2.31'
 }
 
 subprojects.findAll { it.name.equalsIgnoreCase("common") or it.name.equalsIgnoreCase("server")}.each { p ->
     configure(p) {
         apply plugin: 'kotlin'
-        apply plugin: 'org.junit.platform.gradle.plugin'
 
         dependencies {
             implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"){
@@ -39,12 +37,12 @@ subprojects.findAll { it.name.equalsIgnoreCase("common") or it.name.equalsIgnore
                 because 'This is required by Jackson'
             }
 
-            testImplementation 'org.junit.jupiter:junit-jupiter-api:+'
-            testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:+'
+            testImplementation 'org.junit.jupiter:junit-jupiter-api:5.1.0'
+            testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.1.0'
         }
 
-        junitPlatform {
-            details 'tree'
+        test {
+            useJUnitPlatform()
         }
     }
 }

common/build.gradle

@@ -18,7 +18,7 @@ repositories {
 }
 
 dependencies {
-    api 'com.fasterxml.jackson.module:jackson-module-kotlin:2.9.+'
+    api 'com.fasterxml.jackson.module:jackson-module-kotlin:2.9.5'
 }
 
 compileKotlin {

server/build.gradle

@@ -4,7 +4,6 @@ buildscript {
     }
     dependencies {
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath "org.junit.platform:junit-platform-gradle-plugin:+"
     }
 }