Update dynamic compilation example

reflection/src/main/java/fr/gasser/reflection/dynamicload/DynamicLoadDemo.java

@@ -1,5 +1,7 @@
 package fr.gasser.reflection.dynamicload;
 
+import javax.tools.JavaCompiler;
+import javax.tools.ToolProvider;
 import java.io.File;
 import java.io.IOException;
 import java.lang.reflect.Method;
@@ -8,8 +10,6 @@ import java.net.URLClassLoader;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.util.Arrays;
-import javax.tools.JavaCompiler;
-import javax.tools.ToolProvider;
 
 public class DynamicLoadDemo {
     
@@ -25,15 +25,15 @@ public class DynamicLoadDemo {
             + "         return \"Hello world!\";"
             + "     }"
             + "     public String doSomethingReflection(String arg) {"
-            + "         return \"Hello reflection! \" + \"arg\";"
+            + "         return \"Hello reflection! \" + arg;"
             + "     }"
             + "}";
     
     /**
      * Represents the contract for the dynamically loaded class
      */
-    public static interface IDynamicLoad {
-        public String doSomething();
+    public interface IDynamicLoad {
+        String doSomething();
     }
 
     /**
@@ -68,8 +68,7 @@ public class DynamicLoadDemo {
         
         // Invoke methods using the reflection API
 	    Method method = cls.getDeclaredMethod("doSomethingReflection", String.class);
-        String arg = "argument";
         System.out.format("invoking %s.doSomethingReflection()%n", cls.getName());
-        System.out.println(method.invoke(instance, arg));
+        System.out.println(method.invoke(instance, "With an argument"));
     }
 }