diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/feign/pom.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/feign/pom.mustache
index d75158d094b..03323a65a03 100644
--- a/modules/swagger-codegen/src/main/resources/Java/libraries/feign/pom.mustache
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/feign/pom.mustache
@@ -100,8 +100,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.3.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
     </plugins>
@@ -185,6 +185,6 @@
     <jodatime-version>2.9.3</jodatime-version>
     <junit-version>4.12</junit-version>
     <maven-plugin-version>1.0.0</maven-plugin-version>
-    <oltu-version>1.0.0</oltu-version>
+    <oltu-version>1.0.1</oltu-version>
   </properties>
 </project>
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/jersey2/pom.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/jersey2/pom.mustache
index ea940cc0753..472bbf9b9b8 100644
--- a/modules/swagger-codegen/src/main/resources/Java/libraries/jersey2/pom.mustache
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/jersey2/pom.mustache
@@ -100,8 +100,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.3.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
       <!-- For testing build.gradle -->
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/okhttp-gson/pom.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/okhttp-gson/pom.mustache
index 01672549e8e..7f08e5afb58 100644
--- a/modules/swagger-codegen/src/main/resources/Java/libraries/okhttp-gson/pom.mustache
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/okhttp-gson/pom.mustache
@@ -100,8 +100,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.3.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
       <!-- For testing build.gradle -->
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/retrofit/pom.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/retrofit/pom.mustache
index 2d416a57f24..9a917f19caf 100644
--- a/modules/swagger-codegen/src/main/resources/Java/libraries/retrofit/pom.mustache
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/retrofit/pom.mustache
@@ -100,8 +100,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.3.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
     </plugins>
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/retrofit2/pom.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/retrofit2/pom.mustache
index a6453d65201..11bbae5797a 100644
--- a/modules/swagger-codegen/src/main/resources/Java/libraries/retrofit2/pom.mustache
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/retrofit2/pom.mustache
@@ -100,8 +100,7 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.3.2</version>
         <configuration>
-            <source>
-            1.7</source>
+            <source>1.7</source>
             <target>1.7</target>
         </configuration>
       </plugin>
diff --git a/samples/client/petstore/java/feign/pom.xml b/samples/client/petstore/java/feign/pom.xml
index 1d862a8ab9e..164399be4a6 100644
--- a/samples/client/petstore/java/feign/pom.xml
+++ b/samples/client/petstore/java/feign/pom.xml
@@ -185,6 +185,6 @@
     <jodatime-version>2.9.3</jodatime-version>
     <junit-version>4.12</junit-version>
     <maven-plugin-version>1.0.0</maven-plugin-version>
-    <oltu-version>1.0.0</oltu-version>
+    <oltu-version>1.0.1</oltu-version>
   </properties>
 </project>
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/FormAwareEncoder.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/FormAwareEncoder.java
index 2df11392ae9..5d534251519 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/FormAwareEncoder.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/FormAwareEncoder.java
@@ -14,7 +14,7 @@ import feign.codec.EncodeException;
 import feign.codec.Encoder;
 import feign.RequestTemplate;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class FormAwareEncoder implements Encoder {
   public static final String UTF_8 = "utf-8";
   private static final String LINE_FEED = "\r\n";
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/StringUtil.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/StringUtil.java
index 9f79c5f4128..0a07276e65b 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/StringUtil.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/StringUtil.java
@@ -1,6 +1,6 @@
 package io.swagger.client;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class StringUtil {
   /**
    * Check if the given array contains the given value (with case-insensitive comparison).
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/api/PetApi.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/api/PetApi.java
index cfe2b473fb3..e1a0e57b005 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/api/PetApi.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/api/PetApi.java
@@ -12,7 +12,7 @@ import java.util.List;
 import java.util.Map;
 import feign.*;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public interface PetApi extends ApiClient.Api {
 
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/api/StoreApi.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/api/StoreApi.java
index d201859d262..6b124765369 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/api/StoreApi.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/api/StoreApi.java
@@ -10,7 +10,7 @@ import java.util.List;
 import java.util.Map;
 import feign.*;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public interface StoreApi extends ApiClient.Api {
 
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/api/UserApi.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/api/UserApi.java
index 82170bccbd7..281cf2df46a 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/api/UserApi.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/api/UserApi.java
@@ -10,7 +10,7 @@ import java.util.List;
 import java.util.Map;
 import feign.*;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public interface UserApi extends ApiClient.Api {
 
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Animal.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Animal.java
index 506be041d21..6b79f42855b 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Animal.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Animal.java
@@ -9,7 +9,7 @@ import io.swagger.annotations.ApiModelProperty;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class Animal   {
   
   private String className = null;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Cat.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Cat.java
index f86b9592abf..09e48e27ad5 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Cat.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Cat.java
@@ -10,7 +10,7 @@ import io.swagger.client.model.Animal;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class Cat extends Animal  {
   
   private String className = null;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Category.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Category.java
index a710f67fb82..6d4ffb945a0 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Category.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Category.java
@@ -9,7 +9,7 @@ import io.swagger.annotations.ApiModelProperty;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class Category   {
   
   private Long id = null;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Dog.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Dog.java
index cc71eeb2d47..5ff3690685f 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Dog.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Dog.java
@@ -10,7 +10,7 @@ import io.swagger.client.model.Animal;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class Dog extends Animal  {
   
   private String className = null;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/FormatTest.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/FormatTest.java
index abf4168fd0d..ae470044a23 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/FormatTest.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/FormatTest.java
@@ -11,7 +11,7 @@ import java.util.Date;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class FormatTest   {
   
   private Integer integer = null;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Model200Response.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Model200Response.java
index 4cb90f48e1a..e3d07e1b441 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Model200Response.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Model200Response.java
@@ -12,7 +12,7 @@ import io.swagger.annotations.ApiModelProperty;
  **/
 
 @ApiModel(description = "Model for testing model name starting with number")
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class Model200Response   {
   
   private Integer name = null;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelApiResponse.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelApiResponse.java
index c51aee204b2..a1ca4f7ef45 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelApiResponse.java
@@ -9,7 +9,7 @@ import io.swagger.annotations.ApiModelProperty;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class ModelApiResponse   {
   
   private Integer code = null;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelReturn.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelReturn.java
index a50bb1dbda9..b8b35a72382 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelReturn.java
@@ -12,7 +12,7 @@ import io.swagger.annotations.ApiModelProperty;
  **/
 
 @ApiModel(description = "Model for testing reserved words")
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class ModelReturn   {
   
   private Integer _return = null;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Name.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Name.java
index 9e711509072..d993ca02455 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Name.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Name.java
@@ -12,7 +12,7 @@ import io.swagger.annotations.ApiModelProperty;
  **/
 
 @ApiModel(description = "Model for testing model name same as property name")
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class Name   {
   
   private Integer name = null;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Order.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Order.java
index 8b3f9df3f5e..9004aa13a10 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Order.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Order.java
@@ -11,7 +11,7 @@ import java.util.Date;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class Order   {
   
   private Long id = null;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Pet.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Pet.java
index a77e69c1ac9..f23c9124882 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Pet.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Pet.java
@@ -14,7 +14,7 @@ import java.util.List;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class Pet   {
   
   private Long id = null;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/SpecialModelName.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/SpecialModelName.java
index 4c82bbb76f1..b2b87fad3a4 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/SpecialModelName.java
@@ -9,7 +9,7 @@ import io.swagger.annotations.ApiModelProperty;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class SpecialModelName   {
   
   private Long specialPropertyName = null;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Tag.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Tag.java
index d1fdd1d0791..55bef8324de 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Tag.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Tag.java
@@ -9,7 +9,7 @@ import io.swagger.annotations.ApiModelProperty;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class Tag   {
   
   private Long id = null;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/User.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/User.java
index 2868b96d94a..d8657dda7f5 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/User.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/User.java
@@ -9,7 +9,7 @@ import io.swagger.annotations.ApiModelProperty;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:57:42.363+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:48:24.088+08:00")
 public class User   {
   
   private Long id = null;
diff --git a/samples/client/petstore/java/jersey2/pom.xml b/samples/client/petstore/java/jersey2/pom.xml
index 0f8853151ca..c07ae01939a 100644
--- a/samples/client/petstore/java/jersey2/pom.xml
+++ b/samples/client/petstore/java/jersey2/pom.xml
@@ -100,8 +100,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.3.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
       <!-- For testing build.gradle -->
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/ApiException.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/ApiException.java
index 0cfce27ebcb..d5c0fa366bd 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/ApiException.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/ApiException.java
@@ -3,7 +3,7 @@ package io.swagger.client;
 import java.util.Map;
 import java.util.List;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class ApiException extends Exception {
   private int code = 0;
   private Map<String, List<String>> responseHeaders = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/Configuration.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/Configuration.java
index 0044a09a1ff..91b18d8f79c 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/Configuration.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/Configuration.java
@@ -1,6 +1,6 @@
 package io.swagger.client;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class Configuration {
   private static ApiClient defaultApiClient = new ApiClient();
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/JSON.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/JSON.java
index 2407eb9bab2..a6ffdc8fbe7 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/JSON.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/JSON.java
@@ -8,7 +8,7 @@ import java.text.DateFormat;
 
 import javax.ws.rs.ext.ContextResolver;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class JSON implements ContextResolver<ObjectMapper> {
   private ObjectMapper mapper;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/Pair.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/Pair.java
index 0ae34f50daa..b3532990688 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/Pair.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/Pair.java
@@ -1,6 +1,6 @@
 package io.swagger.client;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class Pair {
     private String name = "";
     private String value = "";
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/StringUtil.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/StringUtil.java
index 3536660a310..6409e1b1765 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/StringUtil.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/StringUtil.java
@@ -1,6 +1,6 @@
 package io.swagger.client;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class StringUtil {
   /**
    * Check if the given array contains the given value (with case-insensitive comparison).
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/api/PetApi.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/api/PetApi.java
index 115a0ed2b98..39b9775f39d 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/api/PetApi.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/api/PetApi.java
@@ -16,7 +16,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class PetApi {
   private ApiClient apiClient;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/api/StoreApi.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/api/StoreApi.java
index 38c23931dae..d2a87ef01fa 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/api/StoreApi.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/api/StoreApi.java
@@ -14,7 +14,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class StoreApi {
   private ApiClient apiClient;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/api/UserApi.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/api/UserApi.java
index 83ec59e1983..b97e2357a4b 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/api/UserApi.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/api/UserApi.java
@@ -14,7 +14,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class UserApi {
   private ApiClient apiClient;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/auth/ApiKeyAuth.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/auth/ApiKeyAuth.java
index bcc11dd03c9..62506180f53 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/auth/ApiKeyAuth.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/auth/ApiKeyAuth.java
@@ -5,7 +5,7 @@ import io.swagger.client.Pair;
 import java.util.Map;
 import java.util.List;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class ApiKeyAuth implements Authentication {
   private final String location;
   private final String paramName;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/auth/HttpBasicAuth.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/auth/HttpBasicAuth.java
index 12bf82a8921..65681bc9aa5 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/auth/HttpBasicAuth.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/auth/HttpBasicAuth.java
@@ -9,7 +9,7 @@ import java.util.List;
 
 import java.io.UnsupportedEncodingException;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class HttpBasicAuth implements Authentication {
   private String username;
   private String password;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/auth/OAuth.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/auth/OAuth.java
index 886832f5860..dda7cae0a05 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/auth/OAuth.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/auth/OAuth.java
@@ -5,7 +5,7 @@ import io.swagger.client.Pair;
 import java.util.Map;
 import java.util.List;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class OAuth implements Authentication {
   private String accessToken;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Animal.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Animal.java
index cdb406c892a..a4dfdc3bc56 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Animal.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Animal.java
@@ -9,7 +9,7 @@ import io.swagger.annotations.ApiModelProperty;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class Animal   {
   
   private String className = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Cat.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Cat.java
index 36d6ad93d9a..f150e8d3121 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Cat.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Cat.java
@@ -10,7 +10,7 @@ import io.swagger.client.model.Animal;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class Cat extends Animal  {
   
   private String className = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Category.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Category.java
index 027e28cea8e..78f43782919 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Category.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Category.java
@@ -9,7 +9,7 @@ import io.swagger.annotations.ApiModelProperty;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class Category   {
   
   private Long id = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Dog.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Dog.java
index b68ebd65395..45c85698089 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Dog.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Dog.java
@@ -10,7 +10,7 @@ import io.swagger.client.model.Animal;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class Dog extends Animal  {
   
   private String className = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/FormatTest.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/FormatTest.java
index 131cc5b9727..774ce0ebcfe 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/FormatTest.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/FormatTest.java
@@ -11,7 +11,7 @@ import java.util.Date;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class FormatTest   {
   
   private Integer integer = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Model200Response.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Model200Response.java
index 392d9510ba0..cd6a37772e0 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Model200Response.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Model200Response.java
@@ -12,7 +12,7 @@ import io.swagger.annotations.ApiModelProperty;
  **/
 
 @ApiModel(description = "Model for testing model name starting with number")
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class Model200Response   {
   
   private Integer name = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelApiResponse.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelApiResponse.java
index 08634a24851..5a3f9254bae 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelApiResponse.java
@@ -9,7 +9,7 @@ import io.swagger.annotations.ApiModelProperty;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class ModelApiResponse   {
   
   private Integer code = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelReturn.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelReturn.java
index 6e4fe9eff51..e6214862791 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelReturn.java
@@ -12,7 +12,7 @@ import io.swagger.annotations.ApiModelProperty;
  **/
 
 @ApiModel(description = "Model for testing reserved words")
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class ModelReturn   {
   
   private Integer _return = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Name.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Name.java
index d1eb0b25a74..f710f6122e4 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Name.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Name.java
@@ -12,7 +12,7 @@ import io.swagger.annotations.ApiModelProperty;
  **/
 
 @ApiModel(description = "Model for testing model name same as property name")
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class Name   {
   
   private Integer name = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Order.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Order.java
index 61a3207bf2c..c2fbdbcc9f9 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Order.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Order.java
@@ -11,7 +11,7 @@ import java.util.Date;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class Order   {
   
   private Long id = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Pet.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Pet.java
index 1d906602ab5..100c8f265f0 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Pet.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Pet.java
@@ -14,7 +14,7 @@ import java.util.List;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class Pet   {
   
   private Long id = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/SpecialModelName.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/SpecialModelName.java
index 580088f4d1d..fa2813e9c42 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/SpecialModelName.java
@@ -9,7 +9,7 @@ import io.swagger.annotations.ApiModelProperty;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class SpecialModelName   {
   
   private Long specialPropertyName = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Tag.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Tag.java
index 2adc2177fb3..f82159f2111 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Tag.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Tag.java
@@ -9,7 +9,7 @@ import io.swagger.annotations.ApiModelProperty;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class Tag   {
   
   private Long id = null;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/User.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/User.java
index 22fb4376359..56bfb774ccb 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/User.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/User.java
@@ -9,7 +9,7 @@ import io.swagger.annotations.ApiModelProperty;
 
 
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T22:05:03.730+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:58:40.273+08:00")
 public class User   {
   
   private Long id = null;
diff --git a/samples/client/petstore/java/okhttp-gson/pom.xml b/samples/client/petstore/java/okhttp-gson/pom.xml
index f160c89d290..6b5fb468d62 100644
--- a/samples/client/petstore/java/okhttp-gson/pom.xml
+++ b/samples/client/petstore/java/okhttp-gson/pom.xml
@@ -100,8 +100,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.3.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
       <!-- For testing build.gradle -->
diff --git a/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/ApiException.java b/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/ApiException.java
index c1c25450bde..91d660ba2ac 100644
--- a/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/ApiException.java
+++ b/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/ApiException.java
@@ -3,7 +3,7 @@ package io.swagger.client;
 import java.util.Map;
 import java.util.List;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T21:38:18.907+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:54:48.271+08:00")
 public class ApiException extends Exception {
   private int code = 0;
   private Map<String, List<String>> responseHeaders = null;
diff --git a/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/Configuration.java b/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/Configuration.java
index 19d6c6574ac..cba4c9e4fde 100644
--- a/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/Configuration.java
+++ b/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/Configuration.java
@@ -1,6 +1,6 @@
 package io.swagger.client;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T21:38:18.907+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:54:48.271+08:00")
 public class Configuration {
   private static ApiClient defaultApiClient = new ApiClient();
 
diff --git a/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/Pair.java b/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/Pair.java
index fb7ed7094d5..d7d9f17cf3c 100644
--- a/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/Pair.java
+++ b/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/Pair.java
@@ -1,6 +1,6 @@
 package io.swagger.client;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T21:38:18.907+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:54:48.271+08:00")
 public class Pair {
     private String name = "";
     private String value = "";
diff --git a/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/StringUtil.java b/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/StringUtil.java
index d358b605d4f..bcd8b8115c8 100644
--- a/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/StringUtil.java
+++ b/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/StringUtil.java
@@ -1,6 +1,6 @@
 package io.swagger.client;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T21:38:18.907+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:54:48.271+08:00")
 public class StringUtil {
   /**
    * Check if the given array contains the given value (with case-insensitive comparison).
diff --git a/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/auth/ApiKeyAuth.java b/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/auth/ApiKeyAuth.java
index 6a4080efefa..81c31c9f07d 100644
--- a/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/auth/ApiKeyAuth.java
+++ b/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/auth/ApiKeyAuth.java
@@ -5,7 +5,7 @@ import io.swagger.client.Pair;
 import java.util.Map;
 import java.util.List;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T21:38:18.907+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:54:48.271+08:00")
 public class ApiKeyAuth implements Authentication {
   private final String location;
   private final String paramName;
diff --git a/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/auth/OAuth.java b/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/auth/OAuth.java
index d9e49f905d8..b281311fa19 100644
--- a/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/auth/OAuth.java
+++ b/samples/client/petstore/java/okhttp-gson/src/main/java/io/swagger/client/auth/OAuth.java
@@ -5,7 +5,7 @@ import io.swagger.client.Pair;
 import java.util.Map;
 import java.util.List;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T21:38:18.907+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:54:48.271+08:00")
 public class OAuth implements Authentication {
   private String accessToken;
 
diff --git a/samples/client/petstore/java/retrofit/pom.xml b/samples/client/petstore/java/retrofit/pom.xml
index a0cb2d5873b..2fe5ddc8efc 100644
--- a/samples/client/petstore/java/retrofit/pom.xml
+++ b/samples/client/petstore/java/retrofit/pom.xml
@@ -100,8 +100,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.3.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
     </plugins>
diff --git a/samples/client/petstore/java/retrofit/src/main/java/io/swagger/client/StringUtil.java b/samples/client/petstore/java/retrofit/src/main/java/io/swagger/client/StringUtil.java
index 2b49da0ce3a..8adb42d4fb8 100644
--- a/samples/client/petstore/java/retrofit/src/main/java/io/swagger/client/StringUtil.java
+++ b/samples/client/petstore/java/retrofit/src/main/java/io/swagger/client/StringUtil.java
@@ -1,6 +1,6 @@
 package io.swagger.client;
 
-@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-22T23:01:11.351+08:00")
+@javax.annotation.Generated(value = "class io.swagger.codegen.languages.JavaClientCodegen", date = "2016-04-23T12:55:47.640+08:00")
 public class StringUtil {
   /**
    * Check if the given array contains the given value (with case-insensitive comparison).