Bugfix #15982 : (#15984)

- Use 'orElse' instead of 'get' to avoid Exception for non required headers
- Update samples

Author: AntoineDuComptoirDesPharmacies

modules/openapi-generator/src/main/resources/JavaPlayFramework/newApiController.mustache

@@ -196,7 +196,7 @@ public class {{classname}}Controller extends Controller {
         }
         {{/collectionFormat}}
         {{^collectionFormat}}
-        String value{{paramName}} = request.header("{{baseName}}").get();
+        String value{{paramName}} = request.header("{{baseName}}").orElse(null);
         {{{dataType}}} {{paramName}};
         if (value{{paramName}} != null) {
             {{paramName}} = {{>conversionBegin}}value{{paramName}}{{>conversionEnd}};

samples/server/petstore/java-play-framework-api-package-override/app/com/puppies/store/apis/PetApiController.java

@@ -55,7 +55,7 @@ public Result addPet(Http.Request request) throws Exception {
 
     @ApiAction
     public Result deletePet(Http.Request request, Long petId) throws Exception {
-        String valueapiKey = request.header("api_key").get();
+        String valueapiKey = request.header("api_key").orElse(null);
         String apiKey;
         if (valueapiKey != null) {
             apiKey = valueapiKey;

samples/server/petstore/java-play-framework-async/app/controllers/PetApiController.java

@@ -58,7 +58,7 @@ public CompletionStage<Result> addPet(Http.Request request) throws Exception {
 
     @ApiAction
     public CompletionStage<Result> deletePet(Http.Request request, Long petId) throws Exception {
-        String valueapiKey = request.header("api_key").get();
+        String valueapiKey = request.header("api_key").orElse(null);
         String apiKey;
         if (valueapiKey != null) {
             apiKey = valueapiKey;

samples/server/petstore/java-play-framework-controller-only/app/controllers/PetApiController.java

@@ -53,7 +53,7 @@ public Result addPet(Http.Request request) throws Exception {
 
     @ApiAction
     public Result deletePet(Http.Request request, Long petId) throws Exception {
-        String valueapiKey = request.header("api_key").get();
+        String valueapiKey = request.header("api_key").orElse(null);
         String apiKey;
         if (valueapiKey != null) {
             apiKey = valueapiKey;

samples/server/petstore/java-play-framework-fake-endpoints/app/controllers/FakeApiController.java

@@ -327,7 +327,7 @@ public Result testEnumParameters(Http.Request request) throws Exception {
                 enumHeaderStringArray.add(curParam);
             }
         }
-        String valueenumHeaderString = request.header("enum_header_string").get();
+        String valueenumHeaderString = request.header("enum_header_string").orElse(null);
         String enumHeaderString;
         if (valueenumHeaderString != null) {
             enumHeaderString = valueenumHeaderString;
@@ -367,14 +367,14 @@ public Result testGroupParameters(Http.Request request) throws Exception {
         } else {
             int64Group = null;
         }
-        String valuerequiredBooleanGroup = request.header("required_boolean_group").get();
+        String valuerequiredBooleanGroup = request.header("required_boolean_group").orElse(null);
         Boolean requiredBooleanGroup;
         if (valuerequiredBooleanGroup != null) {
             requiredBooleanGroup = Boolean.valueOf(valuerequiredBooleanGroup);
         } else {
             throw new IllegalArgumentException("'required_boolean_group' parameter is required");
         }
-        String valuebooleanGroup = request.header("boolean_group").get();
+        String valuebooleanGroup = request.header("boolean_group").orElse(null);
         Boolean booleanGroup;
         if (valuebooleanGroup != null) {
             booleanGroup = Boolean.valueOf(valuebooleanGroup);

samples/server/petstore/java-play-framework-fake-endpoints/app/controllers/PetApiController.java

@@ -56,7 +56,7 @@ public Result addPet(Http.Request request) throws Exception {
 
     @ApiAction
     public Result deletePet(Http.Request request, Long petId) throws Exception {
-        String valueapiKey = request.header("api_key").get();
+        String valueapiKey = request.header("api_key").orElse(null);
         String apiKey;
         if (valueapiKey != null) {
             apiKey = valueapiKey;

samples/server/petstore/java-play-framework-no-bean-validation/app/controllers/PetApiController.java

@@ -48,7 +48,7 @@ public Result addPet(Http.Request request) throws Exception {
 
     @ApiAction
     public Result deletePet(Http.Request request, Long petId) throws Exception {
-        String valueapiKey = request.header("api_key").get();
+        String valueapiKey = request.header("api_key").orElse(null);
         String apiKey;
         if (valueapiKey != null) {
             apiKey = valueapiKey;

samples/server/petstore/java-play-framework-no-exception-handling/app/controllers/PetApiController.java

@@ -56,7 +56,7 @@ public Result addPet(Http.Request request) throws IOException {
 
     @ApiAction
     public Result deletePet(Http.Request request, Long petId)  {
-        String valueapiKey = request.header("api_key").get();
+        String valueapiKey = request.header("api_key").orElse(null);
         String apiKey;
         if (valueapiKey != null) {
             apiKey = valueapiKey;

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

@@ -64,7 +64,7 @@ public Result addPet(Http.Request request) throws Exception {
 
     @ApiAction
     public Result deletePet(Http.Request request, Long petId) throws Exception {
-        String valueapiKey = request.header("api_key").get();
+        String valueapiKey = request.header("api_key").orElse(null);
         String apiKey;
         if (valueapiKey != null) {
             apiKey = valueapiKey;

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

@@ -55,7 +55,7 @@ public Result addPet(Http.Request request) throws Exception {
 
     @ApiAction
     public Result deletePet(Http.Request request, Long petId) throws Exception {
-        String valueapiKey = request.header("api_key").get();
+        String valueapiKey = request.header("api_key").orElse(null);
         String apiKey;
         if (valueapiKey != null) {
             apiKey = valueapiKey;