diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/api.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/api.mustache
index dd91399c573..8d3e62f2773 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/api.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/jersey2/api.mustache
@@ -134,7 +134,7 @@ public class {{classname}} {
     {{#hasPathParams}}
     // Path parameters
     String localVarPath = "{{{path}}}"{{#pathParams}}
-            .replaceAll({{=% %=}}"\\{%baseName%}"%={{ }}=%, apiClient.escapeString({{{paramName}}}{{#isUuid}}.toString(){{/isUuid}}{{^isString}}.toString(){{/isString}})){{/pathParams}};
+            .replaceAll({{=% %=}}"\\{%baseName%}"%={{ }}=%, apiClient.escapeString({{{paramName}}}.toString())){{/pathParams}};
 
     {{/hasPathParams}}
     {{#queryParams}}
diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/jersey3/api.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/jersey3/api.mustache
index dd91399c573..8d3e62f2773 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/jersey3/api.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/jersey3/api.mustache
@@ -134,7 +134,7 @@ public class {{classname}} {
     {{#hasPathParams}}
     // Path parameters
     String localVarPath = "{{{path}}}"{{#pathParams}}
-            .replaceAll({{=% %=}}"\\{%baseName%}"%={{ }}=%, apiClient.escapeString({{{paramName}}}{{#isUuid}}.toString(){{/isUuid}}{{^isString}}.toString(){{/isString}})){{/pathParams}};
+            .replaceAll({{=% %=}}"\\{%baseName%}"%={{ }}=%, apiClient.escapeString({{{paramName}}}.toString())){{/pathParams}};
 
     {{/hasPathParams}}
     {{#queryParams}}
diff --git a/samples/client/petstore/java/jersey2-java8-localdatetime/src/main/java/org/openapitools/client/api/StoreApi.java b/samples/client/petstore/java/jersey2-java8-localdatetime/src/main/java/org/openapitools/client/api/StoreApi.java
index b177d1e10f3..9eb1a935371 100644
--- a/samples/client/petstore/java/jersey2-java8-localdatetime/src/main/java/org/openapitools/client/api/StoreApi.java
+++ b/samples/client/petstore/java/jersey2-java8-localdatetime/src/main/java/org/openapitools/client/api/StoreApi.java
@@ -83,7 +83,7 @@ public class StoreApi {
 
     // Path parameters
     String localVarPath = "/store/order/{order_id}"
-            .replaceAll("\\{order_id}", apiClient.escapeString(orderId));
+            .replaceAll("\\{order_id}", apiClient.escapeString(orderId.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType();
diff --git a/samples/client/petstore/java/jersey2-java8-localdatetime/src/main/java/org/openapitools/client/api/UserApi.java b/samples/client/petstore/java/jersey2-java8-localdatetime/src/main/java/org/openapitools/client/api/UserApi.java
index 8311b4ae182..8abd6c0b521 100644
--- a/samples/client/petstore/java/jersey2-java8-localdatetime/src/main/java/org/openapitools/client/api/UserApi.java
+++ b/samples/client/petstore/java/jersey2-java8-localdatetime/src/main/java/org/openapitools/client/api/UserApi.java
@@ -201,7 +201,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType();
@@ -249,7 +249,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept("application/xml", "application/json");
     String localVarContentType = apiClient.selectHeaderContentType();
@@ -386,7 +386,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType();
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/StoreApi.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/StoreApi.java
index b177d1e10f3..9eb1a935371 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/StoreApi.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/StoreApi.java
@@ -83,7 +83,7 @@ public class StoreApi {
 
     // Path parameters
     String localVarPath = "/store/order/{order_id}"
-            .replaceAll("\\{order_id}", apiClient.escapeString(orderId));
+            .replaceAll("\\{order_id}", apiClient.escapeString(orderId.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType();
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/UserApi.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/UserApi.java
index 7de8707e8e2..12c76a584f2 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/UserApi.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/UserApi.java
@@ -201,7 +201,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType();
@@ -249,7 +249,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept("application/xml", "application/json");
     String localVarContentType = apiClient.selectHeaderContentType();
@@ -386,7 +386,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType();
diff --git a/samples/client/petstore/java/jersey3/src/main/java/org/openapitools/client/api/StoreApi.java b/samples/client/petstore/java/jersey3/src/main/java/org/openapitools/client/api/StoreApi.java
index ec61c4db4fd..efed8fbd318 100644
--- a/samples/client/petstore/java/jersey3/src/main/java/org/openapitools/client/api/StoreApi.java
+++ b/samples/client/petstore/java/jersey3/src/main/java/org/openapitools/client/api/StoreApi.java
@@ -86,7 +86,7 @@ public class StoreApi {
 
     // Path parameters
     String localVarPath = "/store/order/{order_id}"
-            .replaceAll("\\{order_id}", apiClient.escapeString(orderId));
+            .replaceAll("\\{order_id}", apiClient.escapeString(orderId.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType();
diff --git a/samples/client/petstore/java/jersey3/src/main/java/org/openapitools/client/api/UserApi.java b/samples/client/petstore/java/jersey3/src/main/java/org/openapitools/client/api/UserApi.java
index 063cb19a90a..e9776897422 100644
--- a/samples/client/petstore/java/jersey3/src/main/java/org/openapitools/client/api/UserApi.java
+++ b/samples/client/petstore/java/jersey3/src/main/java/org/openapitools/client/api/UserApi.java
@@ -204,7 +204,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType();
@@ -252,7 +252,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept("application/xml", "application/json");
     String localVarContentType = apiClient.selectHeaderContentType();
@@ -389,7 +389,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType("application/json");
diff --git a/samples/openapi3/client/petstore/java/jersey2-java8-swagger1/src/main/java/org/openapitools/client/api/StoreApi.java b/samples/openapi3/client/petstore/java/jersey2-java8-swagger1/src/main/java/org/openapitools/client/api/StoreApi.java
index c1f2119831c..20462c014d6 100644
--- a/samples/openapi3/client/petstore/java/jersey2-java8-swagger1/src/main/java/org/openapitools/client/api/StoreApi.java
+++ b/samples/openapi3/client/petstore/java/jersey2-java8-swagger1/src/main/java/org/openapitools/client/api/StoreApi.java
@@ -83,7 +83,7 @@ public class StoreApi {
 
     // Path parameters
     String localVarPath = "/store/order/{orderId}"
-            .replaceAll("\\{orderId}", apiClient.escapeString(orderId));
+            .replaceAll("\\{orderId}", apiClient.escapeString(orderId.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType();
diff --git a/samples/openapi3/client/petstore/java/jersey2-java8-swagger1/src/main/java/org/openapitools/client/api/UserApi.java b/samples/openapi3/client/petstore/java/jersey2-java8-swagger1/src/main/java/org/openapitools/client/api/UserApi.java
index 8fb023cc39c..038d2353ea8 100644
--- a/samples/openapi3/client/petstore/java/jersey2-java8-swagger1/src/main/java/org/openapitools/client/api/UserApi.java
+++ b/samples/openapi3/client/petstore/java/jersey2-java8-swagger1/src/main/java/org/openapitools/client/api/UserApi.java
@@ -204,7 +204,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType();
@@ -253,7 +253,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept("application/xml", "application/json");
     String localVarContentType = apiClient.selectHeaderContentType();
@@ -391,7 +391,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType("application/json");
diff --git a/samples/openapi3/client/petstore/java/jersey2-java8-swagger2/src/main/java/org/openapitools/client/api/StoreApi.java b/samples/openapi3/client/petstore/java/jersey2-java8-swagger2/src/main/java/org/openapitools/client/api/StoreApi.java
index c1f2119831c..20462c014d6 100644
--- a/samples/openapi3/client/petstore/java/jersey2-java8-swagger2/src/main/java/org/openapitools/client/api/StoreApi.java
+++ b/samples/openapi3/client/petstore/java/jersey2-java8-swagger2/src/main/java/org/openapitools/client/api/StoreApi.java
@@ -83,7 +83,7 @@ public class StoreApi {
 
     // Path parameters
     String localVarPath = "/store/order/{orderId}"
-            .replaceAll("\\{orderId}", apiClient.escapeString(orderId));
+            .replaceAll("\\{orderId}", apiClient.escapeString(orderId.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType();
diff --git a/samples/openapi3/client/petstore/java/jersey2-java8-swagger2/src/main/java/org/openapitools/client/api/UserApi.java b/samples/openapi3/client/petstore/java/jersey2-java8-swagger2/src/main/java/org/openapitools/client/api/UserApi.java
index 8fb023cc39c..038d2353ea8 100644
--- a/samples/openapi3/client/petstore/java/jersey2-java8-swagger2/src/main/java/org/openapitools/client/api/UserApi.java
+++ b/samples/openapi3/client/petstore/java/jersey2-java8-swagger2/src/main/java/org/openapitools/client/api/UserApi.java
@@ -204,7 +204,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType();
@@ -253,7 +253,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept("application/xml", "application/json");
     String localVarContentType = apiClient.selectHeaderContentType();
@@ -391,7 +391,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType("application/json");
diff --git a/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/StoreApi.java b/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/StoreApi.java
index 3e72cc01670..54e92b748b9 100644
--- a/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/StoreApi.java
+++ b/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/StoreApi.java
@@ -83,7 +83,7 @@ public class StoreApi {
 
     // Path parameters
     String localVarPath = "/store/order/{order_id}"
-            .replaceAll("\\{order_id}", apiClient.escapeString(orderId));
+            .replaceAll("\\{order_id}", apiClient.escapeString(orderId.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType();
diff --git a/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/UserApi.java b/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/UserApi.java
index ea5e16053c3..09ede082a4b 100644
--- a/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/UserApi.java
+++ b/samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/api/UserApi.java
@@ -201,7 +201,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType();
@@ -249,7 +249,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept("application/xml", "application/json");
     String localVarContentType = apiClient.selectHeaderContentType();
@@ -386,7 +386,7 @@ public class UserApi {
 
     // Path parameters
     String localVarPath = "/user/{username}"
-            .replaceAll("\\{username}", apiClient.escapeString(username));
+            .replaceAll("\\{username}", apiClient.escapeString(username.toString()));
 
     String localVarAccept = apiClient.selectHeaderAccept();
     String localVarContentType = apiClient.selectHeaderContentType("application/json");