Extend Java API for Spring-aware generation #2614

Author: denis-fokin

utbot-framework-api/build.gradle.kts

@@ -1,4 +1,5 @@
 val junit4Version: String by rootProject
+val junit5Version: String by rootProject
 val sootVersion: String by rootProject
 val commonsLangVersion: String by rootProject
 val kotlinLoggingVersion: String? by rootProject

utbot-framework-api/src/main/kotlin/org/utbot/framework/plugin/api/Api.kt

@@ -1439,7 +1439,7 @@ sealed class SpringConfiguration(val fullDisplayName: String) {
 }
 
 sealed interface SpringSettings {
-    object AbsentSpringSettings : SpringSettings {
+    companion object AbsentSpringSettings : SpringSettings {
         // NOTE that overriding equals is required just because without it
         // we will lose equality for objects after deserialization
         override fun equals(other: Any?): Boolean = other is AbsentSpringSettings