diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/JSON.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/JSON.mustache
index 0edeb48b264..3297c77e49b 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/JSON.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/JSON.mustache
@@ -205,7 +205,7 @@ public class JSON implements ContextResolver<ObjectMapper> {
       return false;
     }
     visitedClasses.add(modelClass);
-    
+
     // Traverse the oneOf/anyOf composed schemas.
     Map<String, GenericType> descendants = modelDescendants.get(modelClass);
     if (descendants != null) {
diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/auth/HttpSignatureAuth.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/auth/HttpSignatureAuth.mustache
index b9fff30675f..ac0a77db8ac 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/auth/HttpSignatureAuth.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/auth/HttpSignatureAuth.mustache
@@ -1,5 +1,5 @@
 {{>licenseInfo}}
-  
+
 package {{invokerPackage}}.auth;
 
 import {{invokerPackage}}.Pair;
@@ -51,7 +51,7 @@ public class HttpSignatureAuth implements Authentication {
   // The digest algorithm which is used to calculate a cryptographic digest of the HTTP request body.
   private String digestAlgorithm;
 
-  // The maximum validity duration of the HTTP signature. 
+  // The maximum validity duration of the HTTP signature.
   private Long maxSignatureValidity;
 
   /**
diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/pom.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/pom.mustache
index 6ba181b60cf..b305b75c80b 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/pom.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/pom.mustache
@@ -255,7 +255,7 @@
             <artifactId>jsr305</artifactId>
             <version>3.0.2</version>
         </dependency>
-        
+
         <!-- HTTP client: jersey-client -->
         <dependency>
             <groupId>org.glassfish.jersey.core</groupId>
diff --git a/modules/openapi-generator/src/main/resources/Java/travis.mustache b/modules/openapi-generator/src/main/resources/Java/travis.mustache
index e3bdf2af1be..1b6741c083c 100644
--- a/modules/openapi-generator/src/main/resources/Java/travis.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/travis.mustache
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/feign-no-nullable/.travis.yml b/samples/client/petstore/java/feign-no-nullable/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/feign-no-nullable/.travis.yml
+++ b/samples/client/petstore/java/feign-no-nullable/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/feign/.travis.yml b/samples/client/petstore/java/feign/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/feign/.travis.yml
+++ b/samples/client/petstore/java/feign/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/google-api-client/.travis.yml b/samples/client/petstore/java/google-api-client/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/google-api-client/.travis.yml
+++ b/samples/client/petstore/java/google-api-client/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/jersey1/.travis.yml b/samples/client/petstore/java/jersey1/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/jersey1/.travis.yml
+++ b/samples/client/petstore/java/jersey1/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/jersey2-java8/.travis.yml b/samples/client/petstore/java/jersey2-java8/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/jersey2-java8/.travis.yml
+++ b/samples/client/petstore/java/jersey2-java8/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/jersey2-java8/pom.xml b/samples/client/petstore/java/jersey2-java8/pom.xml
index 384c64a4ed3..90fe659e7a8 100644
--- a/samples/client/petstore/java/jersey2-java8/pom.xml
+++ b/samples/client/petstore/java/jersey2-java8/pom.xml
@@ -226,7 +226,7 @@
             <artifactId>jsr305</artifactId>
             <version>3.0.2</version>
         </dependency>
-        
+
         <!-- HTTP client: jersey-client -->
         <dependency>
             <groupId>org.glassfish.jersey.core</groupId>
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/JSON.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/JSON.java
index d29b48becb1..69a73213d8e 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/JSON.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/JSON.java
@@ -176,7 +176,7 @@ public class JSON implements ContextResolver<ObjectMapper> {
       return false;
     }
     visitedClasses.add(modelClass);
-    
+
     // Traverse the oneOf/anyOf composed schemas.
     Map<String, GenericType> descendants = modelDescendants.get(modelClass);
     if (descendants != null) {
diff --git a/samples/client/petstore/java/okhttp-gson-parcelableModel/.travis.yml b/samples/client/petstore/java/okhttp-gson-parcelableModel/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/okhttp-gson-parcelableModel/.travis.yml
+++ b/samples/client/petstore/java/okhttp-gson-parcelableModel/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/okhttp-gson/.travis.yml b/samples/client/petstore/java/okhttp-gson/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/okhttp-gson/.travis.yml
+++ b/samples/client/petstore/java/okhttp-gson/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/rest-assured-jackson/.travis.yml b/samples/client/petstore/java/rest-assured-jackson/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/rest-assured-jackson/.travis.yml
+++ b/samples/client/petstore/java/rest-assured-jackson/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/rest-assured/.travis.yml b/samples/client/petstore/java/rest-assured/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/rest-assured/.travis.yml
+++ b/samples/client/petstore/java/rest-assured/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/resteasy/.travis.yml b/samples/client/petstore/java/resteasy/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/resteasy/.travis.yml
+++ b/samples/client/petstore/java/resteasy/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/resttemplate-withXml/.travis.yml b/samples/client/petstore/java/resttemplate-withXml/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/resttemplate-withXml/.travis.yml
+++ b/samples/client/petstore/java/resttemplate-withXml/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/resttemplate/.travis.yml b/samples/client/petstore/java/resttemplate/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/resttemplate/.travis.yml
+++ b/samples/client/petstore/java/resttemplate/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/retrofit2-play26/.travis.yml b/samples/client/petstore/java/retrofit2-play26/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/retrofit2-play26/.travis.yml
+++ b/samples/client/petstore/java/retrofit2-play26/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/retrofit2/.travis.yml b/samples/client/petstore/java/retrofit2/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/retrofit2/.travis.yml
+++ b/samples/client/petstore/java/retrofit2/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/retrofit2rx2/.travis.yml b/samples/client/petstore/java/retrofit2rx2/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/retrofit2rx2/.travis.yml
+++ b/samples/client/petstore/java/retrofit2rx2/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/retrofit2rx3/.travis.yml b/samples/client/petstore/java/retrofit2rx3/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/retrofit2rx3/.travis.yml
+++ b/samples/client/petstore/java/retrofit2rx3/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/vertx-no-nullable/.travis.yml b/samples/client/petstore/java/vertx-no-nullable/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/vertx-no-nullable/.travis.yml
+++ b/samples/client/petstore/java/vertx-no-nullable/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/vertx/.travis.yml b/samples/client/petstore/java/vertx/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/vertx/.travis.yml
+++ b/samples/client/petstore/java/vertx/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/client/petstore/java/webclient/.travis.yml b/samples/client/petstore/java/webclient/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/client/petstore/java/webclient/.travis.yml
+++ b/samples/client/petstore/java/webclient/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/openapi3/client/extensions/x-auth-id-alias/java/jersey2-java8/.travis.yml b/samples/openapi3/client/extensions/x-auth-id-alias/java/jersey2-java8/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/openapi3/client/extensions/x-auth-id-alias/java/jersey2-java8/.travis.yml
+++ b/samples/openapi3/client/extensions/x-auth-id-alias/java/jersey2-java8/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/openapi3/client/extensions/x-auth-id-alias/java/jersey2-java8/pom.xml b/samples/openapi3/client/extensions/x-auth-id-alias/java/jersey2-java8/pom.xml
index 4ec080f6d95..3c2bcb912be 100644
--- a/samples/openapi3/client/extensions/x-auth-id-alias/java/jersey2-java8/pom.xml
+++ b/samples/openapi3/client/extensions/x-auth-id-alias/java/jersey2-java8/pom.xml
@@ -226,7 +226,7 @@
             <artifactId>jsr305</artifactId>
             <version>3.0.2</version>
         </dependency>
-        
+
         <!-- HTTP client: jersey-client -->
         <dependency>
             <groupId>org.glassfish.jersey.core</groupId>
diff --git a/samples/openapi3/client/extensions/x-auth-id-alias/java/jersey2-java8/src/main/java/org/openapitools/client/JSON.java b/samples/openapi3/client/extensions/x-auth-id-alias/java/jersey2-java8/src/main/java/org/openapitools/client/JSON.java
index 7e2afd3432b..7997f7ec2d4 100644
--- a/samples/openapi3/client/extensions/x-auth-id-alias/java/jersey2-java8/src/main/java/org/openapitools/client/JSON.java
+++ b/samples/openapi3/client/extensions/x-auth-id-alias/java/jersey2-java8/src/main/java/org/openapitools/client/JSON.java
@@ -180,7 +180,7 @@ public class JSON implements ContextResolver<ObjectMapper> {
       return false;
     }
     visitedClasses.add(modelClass);
-    
+
     // Traverse the oneOf/anyOf composed schemas.
     Map<String, GenericType> descendants = modelDescendants.get(modelClass);
     if (descendants != null) {
diff --git a/samples/openapi3/client/petstore/java/jersey2-java8-special-characters/.travis.yml b/samples/openapi3/client/petstore/java/jersey2-java8-special-characters/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/openapi3/client/petstore/java/jersey2-java8-special-characters/.travis.yml
+++ b/samples/openapi3/client/petstore/java/jersey2-java8-special-characters/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/openapi3/client/petstore/java/jersey2-java8-special-characters/pom.xml b/samples/openapi3/client/petstore/java/jersey2-java8-special-characters/pom.xml
index cf079d9b9cc..224d11fef66 100644
--- a/samples/openapi3/client/petstore/java/jersey2-java8-special-characters/pom.xml
+++ b/samples/openapi3/client/petstore/java/jersey2-java8-special-characters/pom.xml
@@ -226,7 +226,7 @@
             <artifactId>jsr305</artifactId>
             <version>3.0.2</version>
         </dependency>
-        
+
         <!-- HTTP client: jersey-client -->
         <dependency>
             <groupId>org.glassfish.jersey.core</groupId>
diff --git a/samples/openapi3/client/petstore/java/jersey2-java8-special-characters/src/main/java/org/openapitools/client/JSON.java b/samples/openapi3/client/petstore/java/jersey2-java8-special-characters/src/main/java/org/openapitools/client/JSON.java
index d29b48becb1..69a73213d8e 100644
--- a/samples/openapi3/client/petstore/java/jersey2-java8-special-characters/src/main/java/org/openapitools/client/JSON.java
+++ b/samples/openapi3/client/petstore/java/jersey2-java8-special-characters/src/main/java/org/openapitools/client/JSON.java
@@ -176,7 +176,7 @@ public class JSON implements ContextResolver<ObjectMapper> {
       return false;
     }
     visitedClasses.add(modelClass);
-    
+
     // Traverse the oneOf/anyOf composed schemas.
     Map<String, GenericType> descendants = modelDescendants.get(modelClass);
     if (descendants != null) {
diff --git a/samples/openapi3/client/petstore/java/jersey2-java8/.travis.yml b/samples/openapi3/client/petstore/java/jersey2-java8/.travis.yml
index e3bdf2af1be..1b6741c083c 100644
--- a/samples/openapi3/client/petstore/java/jersey2-java8/.travis.yml
+++ b/samples/openapi3/client/petstore/java/jersey2-java8/.travis.yml
@@ -18,5 +18,5 @@ script:
   #- mvn test
   # test using gradle
   - gradle test
-  # test using sbt 
+  # test using sbt
   # - sbt test
diff --git a/samples/openapi3/client/petstore/java/jersey2-java8/pom.xml b/samples/openapi3/client/petstore/java/jersey2-java8/pom.xml
index 6a6527cd133..53389ee65d0 100644
--- a/samples/openapi3/client/petstore/java/jersey2-java8/pom.xml
+++ b/samples/openapi3/client/petstore/java/jersey2-java8/pom.xml
@@ -226,7 +226,7 @@
             <artifactId>jsr305</artifactId>
             <version>3.0.2</version>
         </dependency>
-        
+
         <!-- HTTP client: jersey-client -->
         <dependency>
             <groupId>org.glassfish.jersey.core</groupId>
diff --git a/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/JSON.java b/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/JSON.java
index d29b48becb1..69a73213d8e 100644
--- a/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/JSON.java
+++ b/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/JSON.java
@@ -176,7 +176,7 @@ public class JSON implements ContextResolver<ObjectMapper> {
       return false;
     }
     visitedClasses.add(modelClass);
-    
+
     // Traverse the oneOf/anyOf composed schemas.
     Map<String, GenericType> descendants = modelDescendants.get(modelClass);
     if (descendants != null) {
diff --git a/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/auth/HttpSignatureAuth.java b/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/auth/HttpSignatureAuth.java
index 49ca39ecb74..18274e1df9e 100644
--- a/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/auth/HttpSignatureAuth.java
+++ b/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/auth/HttpSignatureAuth.java
@@ -10,7 +10,7 @@
  * Do not edit the class manually.
  */
 
-  
+
 package org.openapitools.client.auth;
 
 import org.openapitools.client.Pair;
@@ -62,7 +62,7 @@ public class HttpSignatureAuth implements Authentication {
   // The digest algorithm which is used to calculate a cryptographic digest of the HTTP request body.
   private String digestAlgorithm;
 
-  // The maximum validity duration of the HTTP signature. 
+  // The maximum validity duration of the HTTP signature.
   private Long maxSignatureValidity;
 
   /**