Wrong getter for Boolean Object

Description

The Swagger Codegen produces wrong getter methods for Boolean. It uses a Boolean Object and the getter isMyProperty() which cannot be used in JSF applications.

This behaviour has changed in comparison to version 2.2.3 of the swagger-codegen.

Swagger-codegen version

2.3.1

Swagger declaration file content or url

    properties:
      active:
        type: boolean

Command line used for generation

Using the maven plugin

      <plugin>
        <groupId>io.swagger</groupId>
        <artifactId>swagger-codegen-maven-plugin</artifactId>
        <version>2.3.1</version>
        <!--<version>2.2.3</version>-->
        <executions>
          <execution>
            <goals>
              <goal>generate</goal>
            </goals>
            <configuration>
              <inputSpec>src/main/resources/swagger.json</inputSpec>
              <language>java</language>
              <modelPackage>modelPacakge</modelPackage>
              <apiPackage>apiPackage</apiPackage>
              <generateApiTests>false</generateApiTests>
              <generateApiDocumentation>false</generateApiDocumentation>
              <generateModelDocumentation>false</generateModelDocumentation>
              <generateModelTests>false</generateModelTests>
              <configOptions>
                <dateLibrary>java8-localdatetime</dateLibrary>
              </configOptions>
            </configuration>
          </execution>
        </executions>
      </plugin>

Steps to reproduce

Generate the Java Model using a Boolean attribute.

Related issues/PRs

Suggest a fix/enhancement

The Generator produces Boolean objects and not types, which is fine.
For Boolean Objects the getter should by getMyProperty, the setter setMyProperty()

In the example above is should produce

public Boolean getActive(){
 ...
} 

and

public void setActive(Boolean boolValue){
 ...
}

If the Generator would produce boolean types, then the getter isMyPropery() and setMyProperty() is fine.

public boolean isActive(){
 ...
} 

and

public void setActive(boolean boolValue){
 ...
}

The generated getter() for the Boolan object cannot be used in JSF Applications, since it expects proper getter() and setter() for Objects. The prefix is is only possible for primitive type boolean.

Reproduce Java model generation from the provided YAML boolean property using the swagger-codegen Maven plugin. Inspect the Java model-generation templates or entry points that choose getter names, then verify that a Boolean object produces getActive() and setActive(Boolean), rather than isActive().