diff --git a/java-spi/java-spi-api/pom.xml b/java-spi/java-spi-api/pom.xml
new file mode 100644
index 00000000..e7c1e87d
--- /dev/null
+++ b/java-spi/java-spi-api/pom.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>com.hmkcode.api</groupId>
+  <artifactId>java-spi-api</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <name>java-spi-api</name>
+  <!-- FIXME change it to the project's website -->
+  <url>http://www.example.com</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>1.7</maven.compiler.source>
+    <maven.compiler.target>1.7</maven.compiler.target>
+  </properties>
+
+
+  <dependencies>
+  
+  </dependencies>
+
+  
+</project>
diff --git a/java-spi/java-spi-api/src/main/java/com/hmkcode/api/MyService.java b/java-spi/java-spi-api/src/main/java/com/hmkcode/api/MyService.java
new file mode 100644
index 00000000..4928f453
--- /dev/null
+++ b/java-spi/java-spi-api/src/main/java/com/hmkcode/api/MyService.java
@@ -0,0 +1,6 @@
+package com.hmkcode.api;
+
+public interface MyService {
+
+	void doSomething();
+}
diff --git a/java-spi/java-spi-api/src/main/java/com/hmkcode/api/MyServiceProviderInterface.java b/java-spi/java-spi-api/src/main/java/com/hmkcode/api/MyServiceProviderInterface.java
new file mode 100644
index 00000000..8e166424
--- /dev/null
+++ b/java-spi/java-spi-api/src/main/java/com/hmkcode/api/MyServiceProviderInterface.java
@@ -0,0 +1,6 @@
+package com.hmkcode.api;
+
+public interface MyServiceProviderInterface {
+
+	MyService getService();
+}
diff --git a/java-spi/java-spi-app/lib/java-spi-api-1.0-SNAPSHOT.jar b/java-spi/java-spi-app/lib/java-spi-api-1.0-SNAPSHOT.jar
new file mode 100644
index 00000000..23a1c6be
Binary files /dev/null and b/java-spi/java-spi-app/lib/java-spi-api-1.0-SNAPSHOT.jar differ
diff --git a/java-spi/java-spi-app/lib/java-spi-impl1-1.0-SNAPSHOT.jar b/java-spi/java-spi-app/lib/java-spi-impl1-1.0-SNAPSHOT.jar
new file mode 100644
index 00000000..c8007874
Binary files /dev/null and b/java-spi/java-spi-app/lib/java-spi-impl1-1.0-SNAPSHOT.jar differ
diff --git a/java-spi/java-spi-app/pom.xml b/java-spi/java-spi-app/pom.xml
new file mode 100644
index 00000000..74906a4f
--- /dev/null
+++ b/java-spi/java-spi-app/pom.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>com.hmkcode.app</groupId>
+  <artifactId>java-spi-app</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <name>java-spi-app</name>
+  <!-- FIXME change it to the project's website -->
+  <url>http://www.example.com</url>
+
+   <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>1.7</maven.compiler.source>
+    <maven.compiler.target>1.7</maven.compiler.target>
+  </properties>
+
+
+  <dependencies>
+   	<dependency>
+	    <groupId>com.hmkcode.api</groupId>
+	    <artifactId>java-spi-api</artifactId>
+	    <version>1.0-SNAPSHOT</version>
+	    <scope>system</scope>
+	    <systemPath>${project.basedir}/lib/java-spi-api-1.0-SNAPSHOT.jar</systemPath>
+	</dependency>
+	<dependency>
+	    <groupId>com.hmkcode.impl</groupId>
+	    <artifactId>java-spi-impl1</artifactId>
+	    <version>1.0-SNAPSHOT</version>
+	    <scope>system</scope>
+	    <systemPath>${project.basedir}/lib/java-spi-impl1-1.0-SNAPSHOT.jar</systemPath>
+	</dependency>
+  </dependencies>
+
+ 
+</project>
diff --git a/java-spi/java-spi-app/src/main/java/com/hmkcode/app/App.java b/java-spi/java-spi-app/src/main/java/com/hmkcode/app/App.java
new file mode 100644
index 00000000..8e46d684
--- /dev/null
+++ b/java-spi/java-spi-app/src/main/java/com/hmkcode/app/App.java
@@ -0,0 +1,9 @@
+package com.hmkcode.app;
+
+public class App 
+{
+    public static void main( String[] args )
+    {        
+        MyServiceLoader.defaultProvider().getService().doSomething();
+    }
+}
diff --git a/java-spi/java-spi-app/src/main/java/com/hmkcode/app/MyServiceLoader.java b/java-spi/java-spi-app/src/main/java/com/hmkcode/app/MyServiceLoader.java
new file mode 100644
index 00000000..2efc5d74
--- /dev/null
+++ b/java-spi/java-spi-app/src/main/java/com/hmkcode/app/MyServiceLoader.java
@@ -0,0 +1,31 @@
+package com.hmkcode.app;
+
+import java.nio.file.ProviderNotFoundException;
+import java.util.Iterator;
+import java.util.ServiceLoader;
+
+import com.hmkcode.api.MyServiceProviderInterface;
+
+
+public class MyServiceLoader {
+
+    private static final String DEFAULT_PROVIDER = "com.hmkcode.impl.MyServiceProviderImpl1";
+    
+    public static MyServiceProviderInterface defaultProvider() {
+    	return provider(DEFAULT_PROVIDER);
+    }
+    
+    public static MyServiceProviderInterface provider(String providerName) {
+        ServiceLoader<MyServiceProviderInterface> loader = ServiceLoader.load(MyServiceProviderInterface.class);
+
+        Iterator<MyServiceProviderInterface> it = loader.iterator();
+        while (it.hasNext()) {
+        	MyServiceProviderInterface provider = it.next();
+            if (providerName.equals(provider.getClass().getName())) {
+                return provider;
+            }
+        }
+        throw new ProviderNotFoundException("provider " + providerName + " not found");
+    }
+    
+}
diff --git a/java-spi/java-spi-impl1/lib/java-spi-api-1.0-SNAPSHOT.jar b/java-spi/java-spi-impl1/lib/java-spi-api-1.0-SNAPSHOT.jar
new file mode 100644
index 00000000..23a1c6be
Binary files /dev/null and b/java-spi/java-spi-impl1/lib/java-spi-api-1.0-SNAPSHOT.jar differ
diff --git a/java-spi/java-spi-impl1/pom.xml b/java-spi/java-spi-impl1/pom.xml
new file mode 100644
index 00000000..2e234c96
--- /dev/null
+++ b/java-spi/java-spi-impl1/pom.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>com.hmkcode.impl</groupId>
+  <artifactId>java-spi-impl1</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <name>java-spi-impl1</name>
+  <!-- FIXME change it to the project's website -->
+  <url>http://www.example.com</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>1.7</maven.compiler.source>
+    <maven.compiler.target>1.7</maven.compiler.target>
+  </properties>
+
+  <dependencies>
+  	<dependency>
+	    <groupId>com.hmkcode.api</groupId>
+	    <artifactId>java-spi-api</artifactId>
+	    <version>1.0-SNAPSHOT</version>
+	    <scope>system</scope>
+	    <systemPath>${project.basedir}/lib/java-spi-api-1.0-SNAPSHOT.jar</systemPath>
+	</dependency>
+  </dependencies>
+  
+</project>
diff --git a/java-spi/java-spi-impl1/src/main/java/com/hmkcode/impl/MyServiceImpl1.java b/java-spi/java-spi-impl1/src/main/java/com/hmkcode/impl/MyServiceImpl1.java
new file mode 100644
index 00000000..24afcfa4
--- /dev/null
+++ b/java-spi/java-spi-impl1/src/main/java/com/hmkcode/impl/MyServiceImpl1.java
@@ -0,0 +1,12 @@
+package com.hmkcode.impl;
+
+import com.hmkcode.api.MyService;
+
+public class MyServiceImpl1 implements MyService{
+
+	@Override
+	public void doSomething() {
+		System.out.println("MyServiceImpl1");
+		
+	}
+}
diff --git a/java-spi/java-spi-impl1/src/main/java/com/hmkcode/impl/MyServiceProviderImpl1.java b/java-spi/java-spi-impl1/src/main/java/com/hmkcode/impl/MyServiceProviderImpl1.java
new file mode 100644
index 00000000..252b7a3e
--- /dev/null
+++ b/java-spi/java-spi-impl1/src/main/java/com/hmkcode/impl/MyServiceProviderImpl1.java
@@ -0,0 +1,13 @@
+package com.hmkcode.impl;
+
+import com.hmkcode.api.MyService;
+import com.hmkcode.api.MyServiceProviderInterface;
+
+public class MyServiceProviderImpl1 implements MyServiceProviderInterface {
+
+	@Override
+	public MyService getService() {
+		return new MyServiceImpl1();
+	}
+
+}
diff --git a/java-spi/java-spi-impl1/src/main/resources/META-INF/services/com.hmkcode.api.MyServiceProviderInterface b/java-spi/java-spi-impl1/src/main/resources/META-INF/services/com.hmkcode.api.MyServiceProviderInterface
new file mode 100644
index 00000000..008c8c11
--- /dev/null
+++ b/java-spi/java-spi-impl1/src/main/resources/META-INF/services/com.hmkcode.api.MyServiceProviderInterface
@@ -0,0 +1 @@
+com.hmkcode.impl.MyServiceProviderImpl1
\ No newline at end of file