diff --git a/examples/annotation-processor/java/build.gradle b/examples/annotation-processor/java/build.gradle
index 5af7562..30c6ce1 100644
--- a/examples/annotation-processor/java/build.gradle
+++ b/examples/annotation-processor/java/build.gradle
@@ -31,6 +31,10 @@ repositories {
     mavenCentral()
 }
 
+application {
+    mainClass = 'com.example.Example'
+}
+
 run {
     doFirst {
         println "Version: $version"
diff --git a/examples/java/build.gradle b/examples/java/build.gradle
index b71424b..e3ecfd6 100644
--- a/examples/java/build.gradle
+++ b/examples/java/build.gradle
@@ -29,6 +29,10 @@ test {
     useJUnitPlatform()
 }
 
+application {
+    mainClass = 'App'
+}
+
 semver {
 //     properties = 'example.properties'
 //     keysPrefix = 'example.'
diff --git a/examples/test/build.gradle b/examples/test/build.gradle
index 0505d58..78bcce1 100644
--- a/examples/test/build.gradle
+++ b/examples/test/build.gradle
@@ -7,7 +7,10 @@ plugins {
 
 defaultTasks 'run'
 
-mainClassName = 'App'
+
+application {
+    mainClass = 'App'
+}
 
 // version = 1.0