diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java
index d1b89584670b..58f7d0e1f226 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java
@@ -1769,8 +1769,16 @@ public void setParameterExampleValue(CodegenParameter p) {
                     innerExample = p.items.defaultValue;
                 }
                 example = "Arrays.asList(" + innerExample + ")";
+                if (p.uniqueItems) {
+                    example = "new LinkedHashSet<>(" + example + ")";
+                }
             } else {
-                example = "Arrays.asList()";
+                if (p.uniqueItems) {
+                    example = "new LinkedHashSet<>()";
+                }
+                else {
+                    example = "Arrays.asList()";
+                }
             }
         } else if (Boolean.TRUE.equals(p.isMap)) {
             example = "new HashMap()";
diff --git a/samples/client/petstore/java-helidon-client/v3/se/docs/PetApi.md b/samples/client/petstore/java-helidon-client/v3/se/docs/PetApi.md
index e2515d9bb9bb..e80912b7ea7d 100644
--- a/samples/client/petstore/java-helidon-client/v3/se/docs/PetApi.md
+++ b/samples/client/petstore/java-helidon-client/v3/se/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java-helidon-client/v4/se/docs/PetApi.md b/samples/client/petstore/java-helidon-client/v4/se/docs/PetApi.md
index e2515d9bb9bb..e80912b7ea7d 100644
--- a/samples/client/petstore/java-helidon-client/v4/se/docs/PetApi.md
+++ b/samples/client/petstore/java-helidon-client/v4/se/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/apache-httpclient/docs/PetApi.md b/samples/client/petstore/java/apache-httpclient/docs/PetApi.md
index e2515d9bb9bb..e80912b7ea7d 100644
--- a/samples/client/petstore/java/apache-httpclient/docs/PetApi.md
+++ b/samples/client/petstore/java/apache-httpclient/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/google-api-client/docs/PetApi.md b/samples/client/petstore/java/google-api-client/docs/PetApi.md
index 1e79e30ef6c2..f034f21a499e 100644
--- a/samples/client/petstore/java/google-api-client/docs/PetApi.md
+++ b/samples/client/petstore/java/google-api-client/docs/PetApi.md
@@ -257,7 +257,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/jersey2-java8-localdatetime/docs/PetApi.md b/samples/client/petstore/java/jersey2-java8-localdatetime/docs/PetApi.md
index 57e78be6d9e5..201c81105830 100644
--- a/samples/client/petstore/java/jersey2-java8-localdatetime/docs/PetApi.md
+++ b/samples/client/petstore/java/jersey2-java8-localdatetime/docs/PetApi.md
@@ -254,7 +254,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/jersey2-java8/docs/PetApi.md b/samples/client/petstore/java/jersey2-java8/docs/PetApi.md
index 57e78be6d9e5..201c81105830 100644
--- a/samples/client/petstore/java/jersey2-java8/docs/PetApi.md
+++ b/samples/client/petstore/java/jersey2-java8/docs/PetApi.md
@@ -254,7 +254,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/microprofile-rest-client-3.0-jackson/docs/PetApi.md b/samples/client/petstore/java/microprofile-rest-client-3.0-jackson/docs/PetApi.md
index bf4b4333d964..065160918eac 100644
--- a/samples/client/petstore/java/microprofile-rest-client-3.0-jackson/docs/PetApi.md
+++ b/samples/client/petstore/java/microprofile-rest-client-3.0-jackson/docs/PetApi.md
@@ -263,7 +263,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/microprofile-rest-client-3.0/docs/PetApi.md b/samples/client/petstore/java/microprofile-rest-client-3.0/docs/PetApi.md
index bf4b4333d964..065160918eac 100644
--- a/samples/client/petstore/java/microprofile-rest-client-3.0/docs/PetApi.md
+++ b/samples/client/petstore/java/microprofile-rest-client-3.0/docs/PetApi.md
@@ -263,7 +263,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/microprofile-rest-client/docs/PetApi.md b/samples/client/petstore/java/microprofile-rest-client/docs/PetApi.md
index bf4b4333d964..065160918eac 100644
--- a/samples/client/petstore/java/microprofile-rest-client/docs/PetApi.md
+++ b/samples/client/petstore/java/microprofile-rest-client/docs/PetApi.md
@@ -263,7 +263,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/okhttp-gson-dynamicOperations/docs/PetApi.md b/samples/client/petstore/java/okhttp-gson-dynamicOperations/docs/PetApi.md
index 8cb7b26383a0..7e992889a380 100644
--- a/samples/client/petstore/java/okhttp-gson-dynamicOperations/docs/PetApi.md
+++ b/samples/client/petstore/java/okhttp-gson-dynamicOperations/docs/PetApi.md
@@ -243,7 +243,7 @@ public class Example {
     petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
     PetApi apiInstance = new PetApi(defaultClient);
-    Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+    Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
     try {
       Set<Pet> result = apiInstance.findPetsByTags(tags);
       System.out.println(result);
diff --git a/samples/client/petstore/java/okhttp-gson-parcelableModel/docs/PetApi.md b/samples/client/petstore/java/okhttp-gson-parcelableModel/docs/PetApi.md
index 8cb7b26383a0..7e992889a380 100644
--- a/samples/client/petstore/java/okhttp-gson-parcelableModel/docs/PetApi.md
+++ b/samples/client/petstore/java/okhttp-gson-parcelableModel/docs/PetApi.md
@@ -243,7 +243,7 @@ public class Example {
     petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
     PetApi apiInstance = new PetApi(defaultClient);
-    Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+    Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
     try {
       Set<Pet> result = apiInstance.findPetsByTags(tags);
       System.out.println(result);
diff --git a/samples/client/petstore/java/restclient-swagger2/docs/PetApi.md b/samples/client/petstore/java/restclient-swagger2/docs/PetApi.md
index e2515d9bb9bb..e80912b7ea7d 100644
--- a/samples/client/petstore/java/restclient-swagger2/docs/PetApi.md
+++ b/samples/client/petstore/java/restclient-swagger2/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/restclient-useSingleRequestParameter-static/docs/PetApi.md b/samples/client/petstore/java/restclient-useSingleRequestParameter-static/docs/PetApi.md
index e2515d9bb9bb..e80912b7ea7d 100644
--- a/samples/client/petstore/java/restclient-useSingleRequestParameter-static/docs/PetApi.md
+++ b/samples/client/petstore/java/restclient-useSingleRequestParameter-static/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/restclient-useSingleRequestParameter/docs/PetApi.md b/samples/client/petstore/java/restclient-useSingleRequestParameter/docs/PetApi.md
index e2515d9bb9bb..e80912b7ea7d 100644
--- a/samples/client/petstore/java/restclient-useSingleRequestParameter/docs/PetApi.md
+++ b/samples/client/petstore/java/restclient-useSingleRequestParameter/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/restclient/docs/PetApi.md b/samples/client/petstore/java/restclient/docs/PetApi.md
index e2515d9bb9bb..e80912b7ea7d 100644
--- a/samples/client/petstore/java/restclient/docs/PetApi.md
+++ b/samples/client/petstore/java/restclient/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/resteasy/docs/PetApi.md b/samples/client/petstore/java/resteasy/docs/PetApi.md
index e2515d9bb9bb..e80912b7ea7d 100644
--- a/samples/client/petstore/java/resteasy/docs/PetApi.md
+++ b/samples/client/petstore/java/resteasy/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/resttemplate-withXml/docs/PetApi.md b/samples/client/petstore/java/resttemplate-withXml/docs/PetApi.md
index e2515d9bb9bb..e80912b7ea7d 100644
--- a/samples/client/petstore/java/resttemplate-withXml/docs/PetApi.md
+++ b/samples/client/petstore/java/resttemplate-withXml/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/resttemplate/docs/PetApi.md b/samples/client/petstore/java/resttemplate/docs/PetApi.md
index e2515d9bb9bb..e80912b7ea7d 100644
--- a/samples/client/petstore/java/resttemplate/docs/PetApi.md
+++ b/samples/client/petstore/java/resttemplate/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/retrofit2-play26/docs/PetApi.md b/samples/client/petstore/java/retrofit2-play26/docs/PetApi.md
index 27140114a49d..8ae51814d166 100644
--- a/samples/client/petstore/java/retrofit2-play26/docs/PetApi.md
+++ b/samples/client/petstore/java/retrofit2-play26/docs/PetApi.md
@@ -257,7 +257,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/retrofit2/docs/PetApi.md b/samples/client/petstore/java/retrofit2/docs/PetApi.md
index 27140114a49d..8ae51814d166 100644
--- a/samples/client/petstore/java/retrofit2/docs/PetApi.md
+++ b/samples/client/petstore/java/retrofit2/docs/PetApi.md
@@ -257,7 +257,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/retrofit2rx2/docs/PetApi.md b/samples/client/petstore/java/retrofit2rx2/docs/PetApi.md
index 27140114a49d..8ae51814d166 100644
--- a/samples/client/petstore/java/retrofit2rx2/docs/PetApi.md
+++ b/samples/client/petstore/java/retrofit2rx2/docs/PetApi.md
@@ -257,7 +257,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/retrofit2rx3/docs/PetApi.md b/samples/client/petstore/java/retrofit2rx3/docs/PetApi.md
index 27140114a49d..8ae51814d166 100644
--- a/samples/client/petstore/java/retrofit2rx3/docs/PetApi.md
+++ b/samples/client/petstore/java/retrofit2rx3/docs/PetApi.md
@@ -257,7 +257,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/vertx-no-nullable/docs/PetApi.md b/samples/client/petstore/java/vertx-no-nullable/docs/PetApi.md
index ecb2af3e7a99..3e8f1633a0ec 100644
--- a/samples/client/petstore/java/vertx-no-nullable/docs/PetApi.md
+++ b/samples/client/petstore/java/vertx-no-nullable/docs/PetApi.md
@@ -257,7 +257,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/vertx-supportVertxFuture/docs/PetApi.md b/samples/client/petstore/java/vertx-supportVertxFuture/docs/PetApi.md
index 115d5ff89d81..e8199d9423ba 100644
--- a/samples/client/petstore/java/vertx-supportVertxFuture/docs/PetApi.md
+++ b/samples/client/petstore/java/vertx-supportVertxFuture/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/vertx/docs/PetApi.md b/samples/client/petstore/java/vertx/docs/PetApi.md
index 115d5ff89d81..e8199d9423ba 100644
--- a/samples/client/petstore/java/vertx/docs/PetApi.md
+++ b/samples/client/petstore/java/vertx/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/webclient-jakarta/docs/PetApi.md b/samples/client/petstore/java/webclient-jakarta/docs/PetApi.md
index e2515d9bb9bb..e80912b7ea7d 100644
--- a/samples/client/petstore/java/webclient-jakarta/docs/PetApi.md
+++ b/samples/client/petstore/java/webclient-jakarta/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/webclient-swagger2/docs/PetApi.md b/samples/client/petstore/java/webclient-swagger2/docs/PetApi.md
index e2515d9bb9bb..e80912b7ea7d 100644
--- a/samples/client/petstore/java/webclient-swagger2/docs/PetApi.md
+++ b/samples/client/petstore/java/webclient-swagger2/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/webclient-useSingleRequestParameter/docs/PetApi.md b/samples/client/petstore/java/webclient-useSingleRequestParameter/docs/PetApi.md
index e2515d9bb9bb..e80912b7ea7d 100644
--- a/samples/client/petstore/java/webclient-useSingleRequestParameter/docs/PetApi.md
+++ b/samples/client/petstore/java/webclient-useSingleRequestParameter/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
diff --git a/samples/client/petstore/java/webclient/docs/PetApi.md b/samples/client/petstore/java/webclient/docs/PetApi.md
index e2515d9bb9bb..e80912b7ea7d 100644
--- a/samples/client/petstore/java/webclient/docs/PetApi.md
+++ b/samples/client/petstore/java/webclient/docs/PetApi.md
@@ -261,7 +261,7 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        Set<String> tags = new LinkedHashSet<>(); // Set<String> | Tags to filter by
         try {
             Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);