Prepare 7.15.0 (#21445)

* Revert "v7.14.0 release (#21443)"

This reverts commit 5eb083e5ce.

* prepare v7.15.0 snapshot

* update samples

* update readme

* update doc

samples/server/petstore/java-play-framework-no-wrap-calls/app/apimodels/Category.java

@@ -9,7 +9,7 @@ import javax.validation.Valid;
 /**
  * A category for a pet
  */
-@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.14.0-SNAPSHOT")
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.15.0-SNAPSHOT")
 @SuppressWarnings({"UnusedReturnValue", "WeakerAccess"})
 public class Category   {
   @JsonProperty("id")

samples/server/petstore/java-play-framework-no-wrap-calls/app/apimodels/ModelApiResponse.java

@@ -10,7 +10,7 @@ import javax.validation.Valid;
 /**
  * Describes the result of uploading an image resource
  */
-@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.14.0-SNAPSHOT")
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.15.0-SNAPSHOT")
 @SuppressWarnings({"UnusedReturnValue", "WeakerAccess"})
 public class ModelApiResponse   {
   @JsonProperty("code")

samples/server/petstore/java-play-framework-no-wrap-calls/app/apimodels/Order.java

@@ -10,7 +10,7 @@ import javax.validation.Valid;
 /**
  * An order for a pets from the pet store
  */
-@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.14.0-SNAPSHOT")
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.15.0-SNAPSHOT")
 @SuppressWarnings({"UnusedReturnValue", "WeakerAccess"})
 public class Order   {
   @JsonProperty("id")

samples/server/petstore/java-play-framework-no-wrap-calls/app/apimodels/Pet.java

@@ -14,7 +14,7 @@ import javax.validation.Valid;
 /**
  * A pet for sale in the pet store
  */
-@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.14.0-SNAPSHOT")
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.15.0-SNAPSHOT")
 @SuppressWarnings({"UnusedReturnValue", "WeakerAccess"})
 public class Pet   {
   @JsonProperty("id")

samples/server/petstore/java-play-framework-no-wrap-calls/app/apimodels/Tag.java

@@ -9,7 +9,7 @@ import javax.validation.Valid;
 /**
  * A tag for a pet
  */
-@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.14.0-SNAPSHOT")
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.15.0-SNAPSHOT")
 @SuppressWarnings({"UnusedReturnValue", "WeakerAccess"})
 public class Tag   {
   @JsonProperty("id")

samples/server/petstore/java-play-framework-no-wrap-calls/app/apimodels/User.java

@@ -9,7 +9,7 @@ import javax.validation.Valid;
 /**
  * A User who is purchasing from the pet store
  */
-@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.14.0-SNAPSHOT")
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.15.0-SNAPSHOT")
 @SuppressWarnings({"UnusedReturnValue", "WeakerAccess"})
 public class User   {
   @JsonProperty("id")

samples/server/petstore/java-play-framework-no-wrap-calls/app/controllers/PetApiController.java

@@ -25,7 +25,7 @@ import javax.validation.Valid;
 import com.typesafe.config.Config;
 
 
-@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.14.0-SNAPSHOT")
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.15.0-SNAPSHOT")
 public class PetApiController extends Controller {
     private final PetApiControllerImpInterface imp;
     private final ObjectMapper mapper;

samples/server/petstore/java-play-framework-no-wrap-calls/app/controllers/PetApiControllerImp.java

@@ -13,7 +13,7 @@ import java.io.FileInputStream;
 import play.libs.Files.TemporaryFile;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
-@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.14.0-SNAPSHOT")
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.15.0-SNAPSHOT")
 public class PetApiControllerImp extends PetApiControllerImpInterface {
     @Override
     public void addPet(Http.Request request, Pet body) throws Exception {

samples/server/petstore/java-play-framework-no-wrap-calls/app/controllers/StoreApiController.java

@@ -24,7 +24,7 @@ import javax.validation.Valid;
 import com.typesafe.config.Config;
 
 
-@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.14.0-SNAPSHOT")
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.15.0-SNAPSHOT")
 public class StoreApiController extends Controller {
     private final StoreApiControllerImpInterface imp;
     private final ObjectMapper mapper;

samples/server/petstore/java-play-framework-no-wrap-calls/app/controllers/StoreApiControllerImp.java

@@ -12,7 +12,7 @@ import java.io.FileInputStream;
 import play.libs.Files.TemporaryFile;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
-@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.14.0-SNAPSHOT")
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.15.0-SNAPSHOT")
 public class StoreApiControllerImp extends StoreApiControllerImpInterface {
     @Override
     public void deleteOrder(Http.Request request, String orderId) throws Exception {

samples/server/petstore/java-play-framework-no-wrap-calls/app/controllers/UserApiController.java

@@ -24,7 +24,7 @@ import javax.validation.Valid;
 import com.typesafe.config.Config;
 
 
-@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.14.0-SNAPSHOT")
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.15.0-SNAPSHOT")
 public class UserApiController extends Controller {
     private final UserApiControllerImpInterface imp;
     private final ObjectMapper mapper;

samples/server/petstore/java-play-framework-no-wrap-calls/app/controllers/UserApiControllerImp.java

@@ -12,7 +12,7 @@ import java.io.FileInputStream;
 import play.libs.Files.TemporaryFile;
 import javax.validation.constraints.*;
 import javax.validation.Valid;
-@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.14.0-SNAPSHOT")
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaPlayFrameworkCodegen", comments = "Generator version: 7.15.0-SNAPSHOT")
 public class UserApiControllerImp extends UserApiControllerImpInterface {
     @Override
     public void createUser(Http.Request request, User body) throws Exception {