Swagger-codegen: [Java] Cannot build code generated by Maven plugin

Description

I'm using the Maven plugin to generate Java code. Following the generation, I get errors compiling the generated code such as:

package com.google.gson.annotations does not exist
package okio does not exist

I'm surprised because I expect _Jersey client 1.18. JSON processing: Jackson 2.4.2_ to be used, as documented in the readme - why do I need GSON or OKIO. If I do, I can't find which dependencies I would need to add to resolve this issue - I am using the examples in the swagger-maven-plugin documentation, but the build is still failing

Swagger-codegen version

2.2.1 - it was working in 2.1.6

Swagger declaration file content or url

https://github.com/amadeus-travel-innovation-sandbox/sandbox-content/blob/master/swagger.yml

Command line used for generation

Codegen config

                        <configuration>
                            <inputSpec>https://raw.githubusercontent.com/amadeus-travel-innovation-sandbox/sandbox-content/master/swagger.yml</inputSpec>
                            <language>java</language>
                            <configOptions>
                               <dateLibrary>joda</dateLibrary>
                            </configOptions>
                            <output>${project.build.directory}/generated-sources/swagger</output>
                        </configuration>

Dependencies and properties

<dependencies>
        <!-- dependencies are needed for the client being generated -->
        <dependency>
            <groupId>io.swagger</groupId>
            <artifactId>swagger-annotations</artifactId>
            <version>${swagger-annotations-version}</version>
        </dependency>

        <!-- HTTP client: jersey-client -->
        <dependency>
            <groupId>org.glassfish.jersey.core</groupId>
            <artifactId>jersey-client</artifactId>
            <version>${jersey-version}</version>
        </dependency>
        <dependency>
            <groupId>org.glassfish.jersey.media</groupId>
            <artifactId>jersey-media-multipart</artifactId>
            <version>${jersey-version}</version>
        </dependency>
        <dependency>
            <groupId>org.glassfish.jersey.media</groupId>
            <artifactId>jersey-media-json-jackson</artifactId>
            <version>2.22.1</version>
        </dependency>

        <!-- JSON processing: jackson -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>${jackson-version}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>${jackson-version}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jackson-version}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.datatype</groupId>
            <artifactId>jackson-datatype-joda</artifactId>
            <version>2.1.5</version>
        </dependency>
        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
            <version>${jodatime-version}</version>
        </dependency>

        <!-- Base64 encoding that works in both JVM and Android -->
        <dependency>
            <groupId>com.brsanthu</groupId>
            <artifactId>migbase64</artifactId>
            <version>2.2</version>
        </dependency>
        <!-- test dependencies -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>${junit-version}</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

        <swagger-annotations-version>1.5.0</swagger-annotations-version>
        <jersey-version>2.12</jersey-version>
        <jackson-version>2.4.2</jackson-version>
        <jodatime-version>2.3</jodatime-version>
        <maven-plugin-version>1.0.0</maven-plugin-version>
        <junit-version>4.8.1</junit-version>
    </properties>

Steps to reproduce

Clone and build https://github.com/tadhgpearson/swagger-maven-plugin-dependencies
I'm using Java 8 & Maven 3.3

Related issues

Perhaps #3261 ?

Suggest a Fix

Behaviour suggests the default is now using GSON + OK HTTP - maybe that's where the bug is?