Update samples for java/jersey2-java6 (and fix artifact ID) (#5118)

* Update samples for java/jersey2-java6.

* Let the sample generation script set the right name for jersey2-java6.

This is the equivalent change to #5095, for jersey2-java6.

* Update samples for Java/Jersey2-java6.

samples/client/petstore/java/jersey2-java6/docs/Capitalization.md

@@ -0,0 +1,15 @@
+
+# Capitalization
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**smallCamel** | **String** |  |  [optional]
+**capitalCamel** | **String** |  |  [optional]
+**smallSnake** | **String** |  |  [optional]
+**capitalSnake** | **String** |  |  [optional]
+**scAETHFlowPoints** | **String** |  |  [optional]
+**ATT_NAME** | **String** | Name of the pet  |  [optional]
+
+
+

samples/client/petstore/java/jersey2-java6/docs/ClassModel.md

@@ -0,0 +1,10 @@
+
+# ClassModel
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**propertyClass** | **String** |  |  [optional]
+
+
+

samples/client/petstore/java/jersey2-java6/docs/EnumTest.md

@@ -7,6 +7,7 @@ Name | Type | Description | Notes
 **enumString** | [**EnumStringEnum**](#EnumStringEnum) |  |  [optional]
 **enumInteger** | [**EnumIntegerEnum**](#EnumIntegerEnum) |  |  [optional]
 **enumNumber** | [**EnumNumberEnum**](#EnumNumberEnum) |  |  [optional]
+**outerEnum** | [**OuterEnum**](OuterEnum.md) |  |  [optional]
 
 
 <a name="EnumStringEnum"></a>

samples/client/petstore/java/jersey2-java6/docs/FakeApi.md

@@ -15,6 +15,8 @@ Method | HTTP request | Description
 
 To test \"client\" model
 
+To test \"client\" model
+
 ### Example
 ```java
 // Import classes:
@@ -137,6 +139,8 @@ null (empty response body)
 
 To test enum parameters
 
+To test enum parameters
+
 ### Example
 ```java
 // Import classes:
@@ -151,7 +155,7 @@ List<String> enumHeaderStringArray = Arrays.asList("enumHeaderStringArray_exampl
 String enumHeaderString = "-efg"; // String | Header parameter enum test (string)
 List<String> enumQueryStringArray = Arrays.asList("enumQueryStringArray_example"); // List<String> | Query parameter enum test (string array)
 String enumQueryString = "-efg"; // String | Query parameter enum test (string)
-BigDecimal enumQueryInteger = new BigDecimal(); // BigDecimal | Query parameter enum test (double)
+Integer enumQueryInteger = 56; // Integer | Query parameter enum test (double)
 Double enumQueryDouble = 3.4D; // Double | Query parameter enum test (double)
 try {
     apiInstance.testEnumParameters(enumFormStringArray, enumFormString, enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble);
@@ -171,8 +175,8 @@ Name | Type | Description  | Notes
  **enumHeaderString** | **String**| Header parameter enum test (string) | [optional] [default to -efg] [enum: _abc, -efg, (xyz)]
  **enumQueryStringArray** | [**List&lt;String&gt;**](String.md)| Query parameter enum test (string array) | [optional] [enum: >, $]
  **enumQueryString** | **String**| Query parameter enum test (string) | [optional] [default to -efg] [enum: _abc, -efg, (xyz)]
- **enumQueryInteger** | **BigDecimal**| Query parameter enum test (double) | [optional]
- **enumQueryDouble** | **Double**| Query parameter enum test (double) | [optional]
+ **enumQueryInteger** | **Integer**| Query parameter enum test (double) | [optional] [enum: 1, -2]
+ **enumQueryDouble** | **Double**| Query parameter enum test (double) | [optional] [enum: 1.1, -1.2]
 
 ### Return type
 
@@ -184,6 +188,6 @@ No authorization required
 
 ### HTTP request headers
 
- - **Content-Type**: application/json
- - **Accept**: application/json
+ - **Content-Type**: */*
+ - **Accept**: */*
 

samples/client/petstore/java/jersey2-java6/docs/FormatTest.md

@@ -15,7 +15,7 @@ Name | Type | Description | Notes
 **binary** | **byte[]** |  |  [optional]
 **date** | [**LocalDate**](LocalDate.md) |  | 
 **dateTime** | [**DateTime**](DateTime.md) |  |  [optional]
-**uuid** | **String** |  |  [optional]
+**uuid** | [**UUID**](UUID.md) |  |  [optional]
 **password** | **String** |  | 
 
 

samples/client/petstore/java/jersey2-java6/docs/MixedPropertiesAndAdditionalPropertiesClass.md

@@ -4,7 +4,7 @@
 ## Properties
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**uuid** | **String** |  |  [optional]
+**uuid** | [**UUID**](UUID.md) |  |  [optional]
 **dateTime** | [**DateTime**](DateTime.md) |  |  [optional]
 **map** | [**Map<String, Animal>**](Animal.md) |  |  [optional]
 

samples/client/petstore/java/jersey2-java6/docs/OuterEnum.md

@@ -0,0 +1,14 @@
+
+# OuterEnum
+
+## Enum
+
+
+* `PLACED` (value: `"placed"`)
+
+* `APPROVED` (value: `"approved"`)
+
+* `DELIVERED` (value: `"delivered"`)
+
+
+