diff --git a/spring-all/src/main/java/org/baeldung/sampleabstract/BallService.java b/spring-all/src/main/java/org/baeldung/sampleabstract/BallService.java
new file mode 100644
index 0000000000..9a75de7fa1
--- /dev/null
+++ b/spring-all/src/main/java/org/baeldung/sampleabstract/BallService.java
@@ -0,0 +1,28 @@
+package org.baeldung.sampleabstract;
+
+import org.springframework.beans.factory.annotation.Autowired;
+
+import javax.annotation.PostConstruct;
+
+public abstract class BallService {
+
+    private RuleRepository ruleRepository;
+
+    private LogRepository logRepository;
+
+    public BallService(RuleRepository ruleRepository) {
+        this.ruleRepository = ruleRepository;
+    }
+
+    @Autowired
+    public final void setLogRepository(LogRepository logRepository) {
+        this.logRepository = logRepository;
+    }
+
+    @PostConstruct
+    public void afterInitialize() {
+
+        System.out.println(ruleRepository.toString());
+        System.out.println(logRepository.toString());
+    }
+}
diff --git a/spring-all/src/main/java/org/baeldung/sampleabstract/BasketballService.java b/spring-all/src/main/java/org/baeldung/sampleabstract/BasketballService.java
new file mode 100644
index 0000000000..c117231d3c
--- /dev/null
+++ b/spring-all/src/main/java/org/baeldung/sampleabstract/BasketballService.java
@@ -0,0 +1,13 @@
+package org.baeldung.sampleabstract;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+public class BasketballService extends BallService {
+
+    @Autowired
+    public BasketballService(RuleRepository ruleRepository) {
+        super(ruleRepository);
+    }
+}
diff --git a/spring-all/src/main/java/org/baeldung/sampleabstract/DemoApp.java b/spring-all/src/main/java/org/baeldung/sampleabstract/DemoApp.java
new file mode 100644
index 0000000000..615d354ecf
--- /dev/null
+++ b/spring-all/src/main/java/org/baeldung/sampleabstract/DemoApp.java
@@ -0,0 +1,18 @@
+package org.baeldung.sampleabstract;
+
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@ComponentScan(basePackages = "org.baeldung.sampleabstract")
+public class DemoApp {
+
+
+    public static void main(String[] args) {
+
+        ApplicationContext applicationContext = new AnnotationConfigApplicationContext(DemoApp.class);
+    }
+
+}
diff --git a/spring-all/src/main/java/org/baeldung/sampleabstract/LogRepository.java b/spring-all/src/main/java/org/baeldung/sampleabstract/LogRepository.java
new file mode 100644
index 0000000000..3a65671493
--- /dev/null
+++ b/spring-all/src/main/java/org/baeldung/sampleabstract/LogRepository.java
@@ -0,0 +1,12 @@
+package org.baeldung.sampleabstract;
+
+import org.springframework.stereotype.Component;
+
+@Component
+public class LogRepository {
+
+    @Override
+    public String toString() {
+        return "logRepository";
+    }
+}
diff --git a/spring-all/src/main/java/org/baeldung/sampleabstract/RuleRepository.java b/spring-all/src/main/java/org/baeldung/sampleabstract/RuleRepository.java
new file mode 100644
index 0000000000..fd42178ab6
--- /dev/null
+++ b/spring-all/src/main/java/org/baeldung/sampleabstract/RuleRepository.java
@@ -0,0 +1,12 @@
+package org.baeldung.sampleabstract;
+
+import org.springframework.stereotype.Component;
+
+@Component
+public class RuleRepository {
+
+    @Override
+    public String toString() {
+        return "ruleRepository";
+    }
+}