[BUG][JAVA] Maven Plugin `CodeGenMojo.strictSpecBehavior` does not match parameter name 'strictSpec'

Created by: karlbennett

Description

The maven plugin does not work for version 4.0.* because the strictSpecBehavior field does not match it's parameter name strictSpec. It seems maven ignores the name specified in the annotation and just uses reflection to look for a field that has the same name as the parameter.

[ERROR] Failed to execute goal org.openapitools:openapi-generator-maven-plugin:4.0.1:generate (default) on project test-client: Unable to parse configuration of mojo org.openapitools:openapi-generator-maven-plugin:4.0.1:generate for parameter strictSpec: Cannot find 'strictSpec' in class org.openapitools.codegen.plugin.CodeGenMojo -> [Help 1]

openapi-generator version

4.0.*

OpenAPI declaration file content or url

https://github.com/OpenAPITools/openapi-generator/blob/master/modules/openapi-generator-maven-plugin/src/main/java/org/openapitools/codegen/plugin/CodeGenMojo.java#L248

/**
 * To treat a document strictly against the spec.
 */
@Parameter(name = "strictSpec", property = "openapi.generator.maven.plugin.strictSpec", required = false)
private Boolean strictSpecBehavior;

Steps to reproduce

Try to generate a client with the maven plugin above version 4.0.*.

<plugin>
    <groupId>org.openapitools</groupId>
    <artifactId>openapi-generator-maven-plugin</artifactId>
    <version>4.0.1</version>
    <executions>
        <execution>
            <goals>
                <goal>generate</goal>
            </goals>
            <configuration>
                <inputSpec>${project.basedir}/src/main/resources/api.yaml</inputSpec>
                <generatorName>java</generatorName>
                <configOptions>
                   <sourceFolder>src/gen/java/main</sourceFolder>
                </configOptions>
            </configuration>
        </execution>
    </executions>
</plugin>

Suggest a fix

Simply fix the field name.

/**
 * To treat a document strictly against the spec.
 */
@Parameter(name = "strictSpec", property = "openapi.generator.maven.plugin.strictSpec", required = false)
private Boolean strictSpec;