diff --git a/samples/server/petstore/jaxrs-spec-required-and-readonly-property/.openapi-generator/FILES b/samples/server/petstore/jaxrs-spec-required-and-readonly-property/.openapi-generator/FILES
index 14bd2cb5106..5bfc5850a3d 100644
--- a/samples/server/petstore/jaxrs-spec-required-and-readonly-property/.openapi-generator/FILES
+++ b/samples/server/petstore/jaxrs-spec-required-and-readonly-property/.openapi-generator/FILES
@@ -1,7 +1,7 @@
-.openapi-generator-ignore
 README.md
 pom.xml
 src/gen/java/org/openapitools/api/RestApplication.java
+src/gen/java/org/openapitools/api/RestResourceRoot.java
 src/gen/java/org/openapitools/api/UserApi.java
 src/gen/java/org/openapitools/model/ReadonlyAndRequiredProperties.java
 src/main/openapi/openapi.yaml
diff --git a/samples/server/petstore/jaxrs-spec-required-and-readonly-property/.openapi-generator/VERSION b/samples/server/petstore/jaxrs-spec-required-and-readonly-property/.openapi-generator/VERSION
index 89648de3311..7f4d792ec2c 100644
--- a/samples/server/petstore/jaxrs-spec-required-and-readonly-property/.openapi-generator/VERSION
+++ b/samples/server/petstore/jaxrs-spec-required-and-readonly-property/.openapi-generator/VERSION
@@ -1 +1 @@
-6.0.1-SNAPSHOT
\ No newline at end of file
+6.5.0-SNAPSHOT
\ No newline at end of file
diff --git a/samples/server/petstore/jaxrs-spec-required-and-readonly-property/README.md b/samples/server/petstore/jaxrs-spec-required-and-readonly-property/README.md
index 0f7a255fe52..b9d190efc44 100644
--- a/samples/server/petstore/jaxrs-spec-required-and-readonly-property/README.md
+++ b/samples/server/petstore/jaxrs-spec-required-and-readonly-property/README.md
@@ -10,7 +10,7 @@ This example uses the [JAX-RS](https://jax-rs-spec.java.net/) framework.
 
 The JAX-RS implementation needs to be provided by the application server you are deploying on.
 
-To run the server from the command line, you can use maven to provision an start a TomEE Server.
+To run the server from the command line, you can use maven to provision and start a TomEE Server.
 Please execute the following:
 
 ```
diff --git a/samples/server/petstore/jaxrs-spec-required-and-readonly-property/src/gen/java/org/openapitools/api/RestApplication.java b/samples/server/petstore/jaxrs-spec-required-and-readonly-property/src/gen/java/org/openapitools/api/RestApplication.java
index b85041070e9..7df2d0fe333 100644
--- a/samples/server/petstore/jaxrs-spec-required-and-readonly-property/src/gen/java/org/openapitools/api/RestApplication.java
+++ b/samples/server/petstore/jaxrs-spec-required-and-readonly-property/src/gen/java/org/openapitools/api/RestApplication.java
@@ -3,7 +3,7 @@ package org.openapitools.api;
 import javax.ws.rs.ApplicationPath;
 import javax.ws.rs.core.Application;
 
-@ApplicationPath("")
+@ApplicationPath(RestResourceRoot.APPLICATION_PATH)
 public class RestApplication extends Application {
 
 }
diff --git a/samples/server/petstore/jaxrs-spec-required-and-readonly-property/src/gen/java/org/openapitools/model/ReadonlyAndRequiredProperties.java b/samples/server/petstore/jaxrs-spec-required-and-readonly-property/src/gen/java/org/openapitools/model/ReadonlyAndRequiredProperties.java
index 41eb7aa571a..cf06a949cae 100644
--- a/samples/server/petstore/jaxrs-spec-required-and-readonly-property/src/gen/java/org/openapitools/model/ReadonlyAndRequiredProperties.java
+++ b/samples/server/petstore/jaxrs-spec-required-and-readonly-property/src/gen/java/org/openapitools/model/ReadonlyAndRequiredProperties.java
@@ -18,17 +18,20 @@ import com.fasterxml.jackson.annotation.JsonTypeName;
 @JsonTypeName("ReadonlyAndRequiredProperties")
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaJAXRSSpecServerCodegen")
 public class ReadonlyAndRequiredProperties  implements Serializable {
-  
   private @Valid String requiredYesReadonlyYes;
   private @Valid String requiredYesReadonlyNo;
   private @Valid String requiredNoReadonlyYes;
   private @Valid String requiredNoReadonlyNo;
 
   protected ReadonlyAndRequiredProperties(ReadonlyAndRequiredPropertiesBuilder<?, ?> b) {
-  this.requiredYesReadonlyYes = b.requiredYesReadonlyYes;this.requiredYesReadonlyNo = b.requiredYesReadonlyNo;this.requiredNoReadonlyYes = b.requiredNoReadonlyYes;this.requiredNoReadonlyNo = b.requiredNoReadonlyNo;
+    this.requiredYesReadonlyYes = b.requiredYesReadonlyYes;
+    this.requiredYesReadonlyNo = b.requiredYesReadonlyNo;
+    this.requiredNoReadonlyYes = b.requiredNoReadonlyYes;
+    this.requiredNoReadonlyNo = b.requiredNoReadonlyNo;
   }
 
-  public ReadonlyAndRequiredProperties() { }
+  public ReadonlyAndRequiredProperties() {
+  }
 
   /**
    **/
@@ -49,7 +52,7 @@ public class ReadonlyAndRequiredProperties  implements Serializable {
     this.requiredYesReadonlyYes = requiredYesReadonlyYes;
   }
 
-/**
+  /**
    **/
   public ReadonlyAndRequiredProperties requiredYesReadonlyNo(String requiredYesReadonlyNo) {
     this.requiredYesReadonlyNo = requiredYesReadonlyNo;
@@ -69,7 +72,7 @@ public class ReadonlyAndRequiredProperties  implements Serializable {
     this.requiredYesReadonlyNo = requiredYesReadonlyNo;
   }
 
-/**
+  /**
    **/
   public ReadonlyAndRequiredProperties requiredNoReadonlyYes(String requiredNoReadonlyYes) {
     this.requiredNoReadonlyYes = requiredNoReadonlyYes;
@@ -88,7 +91,7 @@ public class ReadonlyAndRequiredProperties  implements Serializable {
     this.requiredNoReadonlyYes = requiredNoReadonlyYes;
   }
 
-/**
+  /**
    **/
   public ReadonlyAndRequiredProperties requiredNoReadonlyNo(String requiredNoReadonlyNo) {
     this.requiredNoReadonlyNo = requiredNoReadonlyNo;