Query parameter at beginning of path leads to class name "nullApi" #1347
Description
Description
When using generatorName="jaxrs-spec" and the first path fragement in a declaration is a query parameter, the API class is given the name "nullApi".
It happens also in cases where tags are present.
This does not occur e.g. with generatorName="jaxrs-cxf". In this case the tag name or the query parameter name are taken to build the class name.
openapi-generator version
Version 3.3.1
OpenAPI declaration file content or url
openapi: 3.0.1
info:
title: Name demo
version: 1.0
paths:
/{country}/document:
get:
summary: Get a document
tags:
- document
operationId: getDocument
parameters:
- name: country
in: path
required: true
schema:
type: string
responses:
"201":
description: The document
"500":
description: Server error
tags:
- name: document
description: Document tagCommand line used for generation
Maven build:
<build>
<plugins>
<plugin>
<groupId>org.openapitools</groupId>
<artifactId>openapi-generator-maven-plugin</artifactId>
<version>3.3.1</version>
<executions>
<execution>
<goals>
<goal>generate</goal>
</goals>
<configuration>
<inputSpec>${project.basedir}/src/main/resources/test.yaml</inputSpec>
<generatorName>jaxrs-spec</generatorName>
<output>${project.basedir}/target</output>
<configOptions>
<sourceFolder>/generated-sources/java</sourceFolder>
<useSwaggerAnnotations>false</useSwaggerAnnotations>
<interfaceOnly>true</interfaceOnly>
</configOptions>
</configuration>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.openapitools</groupId>
<artifactId>openapi-generator-maven-plugin</artifactId>
<version>3.3.1</version>
<type>maven-plugin</type>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>Steps to reproduce
The effect is reproducible with the given Maven build and all OpenAPI declarations where the first path fragment is a query parameter.