Fix Kotlin jvmTarget for Java 17

build.gradle

@@ -183,6 +183,15 @@ configure(javaProjects) { subproject ->
 		options.encoding = 'UTF-8'
 	}
 
+	compileTestKotlin {
+		kotlinOptions {
+			jvmTarget = JavaVersion.VERSION_17
+		}
+		compilerOptions {
+			allWarningsAsErrors = true
+		}
+	}
+
 	eclipse {
 		project {
 			natures += 'org.springframework.ide.eclipse.core.springnature'
@@ -444,12 +453,6 @@ project('spring-rabbit') {
 			exclude group: 'org.hamcrest', module: 'hamcrest-core'
 		}
 	}
-
-	compileKotlin {
-		compilerOptions {
-			allWarningsAsErrors = true
-		}
-	}
 }
 
 project('spring-rabbit-stream') {