gradle build refactoring, the platformInterface module now uses kotli…

…n-dsl instead of groovy for better version management

build.gradle.kts

@@ -36,21 +36,30 @@ dependencies {
 	compile ("com.github.hotzkow:platformInterfaceLib") {
 		// in theory it should be 'api', but for some reason that does not work for transitive classpath dependencies
 		version {
-			require("[2.4.1,2.5[")
+			require("[2.4.1, 2.5[")
 		}
 	}
+
 	implementation ("com.natpryce:konfig:1.6.6.0")  // configuration library
 	implementation ("org.slf4j:slf4j-api:1.7.25")
 
 	// we need the jdk dependency instead of stdlib to have enhanced java features like tue 'use' function for try-with-resources
 	implementation (group= "org.jetbrains.kotlin", name= "kotlin-stdlib-jdk8")
 	implementation ("org.jetbrains.kotlin:kotlin-reflect") // because we need reflection to get annotated property values
-	implementation ("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.1.1")
+	implementation ("org.jetbrains.kotlinx:kotlinx-coroutines-core") {
+		version{
+			require("[1.1.0, 1.2[") // FIXME incompatible with newer version
+		}
+	}
 
 	testImplementation (group= "junit", name= "junit", version= "4.12")
 }
 
 // compile bytecode to java 8 (default is java 6)
 tasks.withType<KotlinCompile> {
 	kotlinOptions.jvmTarget = JavaVersion.VERSION_1_8.toString()
+}
+
+tasks.withType<Wrapper> {
+	gradleVersion = "5.3"  //define what gradle wrapper version is to be used on wrapper initialization (only if there is no wrapper yet or "gradlew wrapper" is called)
 }

settings.gradle.kts

@@ -1,6 +1,6 @@
 
 pluginManagement {
-	val kotlinVersion = "1.3.31"  // need at least 1.3.20 to avoid error 'command line is too long'
+	val kotlinVersion = "1.3.41"  // need at least 1.3.20 to avoid error 'command line is too long'
 	repositories {
 		gradlePluginPortal()
 		jcenter()

src/main/kotlin/org/droidmate/explorationModel/Actor.kt

@@ -23,7 +23,6 @@ package org.droidmate.explorationModel
 import kotlinx.coroutines.*
 import kotlinx.coroutines.channels.*
 import kotlin.coroutines.CoroutineContext
-import kotlin.coroutines.coroutineContext
 
 // we have exactly one thread who is going to handle our model actors
 // (we use an own thread to avoid blocking issues for mono/duo-cores, where the default thread-pool only has size 1)