diff --git a/integrationTests/gradle-java-toolchain/README.md b/integrationTests/gradle-java-toolchain/README.md
index daabc03e..07c3a4a5 100644
--- a/integrationTests/gradle-java-toolchain/README.md
+++ b/integrationTests/gradle-java-toolchain/README.md
@@ -1,26 +1,30 @@
-# spring-boot-simple
+# gradle-java-toolchain
 
-Spring-boot webapp with gretty.
+Simple gretty servlet application powered by gradle java toolchain.
 
 ## How to run
 
 ```bash
-cd examples/spring-boot-simple
+cd integrationTests/gradle-java-toolchain
 gradle appRun
 ```
 
+
 ## How to test
 
 ```bash
-cd examples/spring-boot-simple
-gradle integrationTest
+cd integrationTests/gradle-java-toolchain
+gradle integrationTest -PgeckoDriverPlatform=linux64 -PtoolchainJavaVersion=21
+```
+or
+```bash
+./docker_gradlew.sh --java 21 --java 11 --gradle 7 --working-dir integrationTests/gradle-java-toolchain -PtoolchainJavaVersion=21 -Pspock_version=2.3-groovy-3.0 -PgebVersion=5.1 integrationTest
 ```
-
 ## How to build a product
 
 
 ```bash
-cd examples/spring-boot-simple
+cd integrationTests/gradle-java-toolchain
 gradle buildProduct
 ```
 
diff --git a/integrationTests/gradle-java-toolchain/build.gradle b/integrationTests/gradle-java-toolchain/build.gradle
index 798b623d..644c17f6 100644
--- a/integrationTests/gradle-java-toolchain/build.gradle
+++ b/integrationTests/gradle-java-toolchain/build.gradle
@@ -17,8 +17,14 @@ defineAsJavaToolchainAwareIntegrationTest()
 defineIntegrationTest()
 testAll.dependsOn defineIntegrationTestAllContainers(['jetty8', 'jetty9', 'jetty10', 'tomcat85', 'tomcat9'])
 
-tasks.withType(Test).configureEach {
-  if(project.findProperty('toolchainJavaVersion')) {
-    systemProperty 'toolchainJavaVersion', project.findProperty('toolchainJavaVersion')
+//typical toolchain DSL
+java {
+  toolchain {
+    languageVersion = JavaLanguageVersion.of("${project.javaVersion.majorVersion}")
   }
-}
\ No newline at end of file
+}
+
+//toolchain aware integration test
+tasks.withType(Test).configureEach {
+  systemProperty 'toolchainJavaVersion', "${project.javaVersion.majorVersion}"
+}
diff --git a/integrationTests/gradle-java-toolchain/src/integrationTest/groovy/org/akhikhl/examples/gretty/gradle/toolchain/PageSpec.groovy b/integrationTests/gradle-java-toolchain/src/integrationTest/groovy/org/akhikhl/examples/gretty/gradle/toolchain/PageSpec.groovy
index 20e4f43e..5861cc0a 100644
--- a/integrationTests/gradle-java-toolchain/src/integrationTest/groovy/org/akhikhl/examples/gretty/gradle/toolchain/PageSpec.groovy
+++ b/integrationTests/gradle-java-toolchain/src/integrationTest/groovy/org/akhikhl/examples/gretty/gradle/toolchain/PageSpec.groovy
@@ -17,7 +17,7 @@ class PageSpec extends GebReportingSpec {
 
   void setupSpec() {
     baseURI = System.getProperty('gretty.baseURI')
-    toolchainJavaVersion = System.getProperty('toolchainJavaVersion') ?: System.getProperty('java.vm.version')
+    toolchainJavaVersion = Objects.requireNonNull(System.getProperty('toolchainJavaVersion'))
   }
 
   def 'should get expected static page'() {