Cannot call the API using Swagger-UI's jar file

Question

I generated my classes using http://swagger.io/ and I got zip files which contains classes and models.

When I compile a jar file and then add it to my project as a jar lib it gives me this error:

05-09 17:22:37.894 4589-4589/? E/ReportHandler: FATAL EXCEPTION: main
java.lang.NoClassDefFoundError: Failed resolution of: Lorg/apache/http/Consts;
 at io.swagger.client.ApiInvoker.<clinit>(ApiInvoker.java:66)
 at io.swagger.client.api.UserAuthenticationApi.<init>(UserAuthenticationApi.java:22)
 at com.selfdrvn.Selfdrvn.activities.LoginActivity$1.onClick(LoginActivity.java:99)
 at android.view.View.performClick(View.java:4780)
 at android.view.View$PerformClick.run(View.java:19866)
 at android.os.Handler.handleCallback(Handler.java:739)
 at android.os.Handler.dispatchMessage(Handler.java:95)
 at android.os.Looper.loop(Looper.java:135)
 at android.app.ActivityThread.main(ActivityThread.java:5254)
 at java.lang.reflect.Method.invoke(Native Method)
 at java.lang.reflect.Method.invoke(Method.java:372)
 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.ClassNotFoundException: Didn't find class "org.apache.http.Consts" on path: DexPathL,nativeLibraryDirectories=[/vendor/lib, /system/lib]]
 at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
 at io.swagger.client.ApiInvoker.<clinit>(ApiInvoker.java:66) 
 at io.swagger.client.api.UserAuthenticationApi.<init>(UserAuthenticationApi.java:22) 
 at com.selfdrvn.Selfdrvn.activities.LoginActivity$1.onClick(LoginActivity.java:99) 
 at android.view.View.performClick(View.java:4780) 
 at android.view.View$PerformClick.run(View.java:19866) 
 at android.os.Handler.handleCallback(Handler.java:739) 
 at android.os.Handler.dispatchMessage(Handler.java:95) 
 at android.os.Looper.loop(Looper.java:135) 
 at android.app.ActivityThread.main(ActivityThread.java:5254) 
 at java.lang.reflect.Method.invoke(Native Method) 
 at java.lang.reflect.Method.invoke(Method.java:372) 
 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903) 
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698) 
 Suppressed: java.lang.ClassNotFoundException: org.apache.http.Consts
 at java.lang.Class.classForName(Native Method)
 at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
 at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
         ... 14 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

This is the build.gradle file for the swagger generated library:

    group = 'io.swagger'
project.version = '1.0.0'

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:1.5.+'

        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.3'

    }
}

allprojects {
    repositories {
        jcenter()
    }
}


apply plugin: 'com.android.library'
apply plugin: 'com.github.dcendents.android-maven'

android {
    compileSdkVersion 22
    buildToolsVersion '23.0.2'
//    useLibrary  'org.apache.http.legacy'
    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 23
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_7
        targetCompatibility JavaVersion.VERSION_1_7
    }

    // Rename the aar correctly
    libraryVariants.all { variant ->
        variant.outputs.each { output ->
            def outputFile = output.outputFile
            if (outputFile != null && outputFile.name.endsWith('.aar')) {
                def fileName = "${project.name}-${variant.baseName}-${version}.aar"
                output.outputFile = new File(outputFile.parent, fileName)
            }
        }
    }
}


ext {
    swagger_annotations_version = "1.5.0"
    gson_version = "2.3.1"
    httpclient_version = "4.5.2"
    httpcore_version = "4.4.4"
    junit_version = "4.12"
}

dependencies {
    compile "io.swagger:swagger-annotations:$swagger_annotations_version"
    compile "com.google.code.gson:gson:$gson_version"
    compile "org.apache.httpcomponents:httpcore:$httpcore_version"
    compile "org.apache.httpcomponents:httpclient:$httpclient_version"
    compile ("org.apache.httpcomponents:httpcore:$httpcore_version") {
        exclude(group: 'org.apache.httpcomponents', module: 'httpclient')
    }
    compile ("org.apache.httpcomponents:httpmime:$httpclient_version") {
        exclude(group: 'org.apache.httpcomponents', module: 'httpclient')
    }
    testCompile "junit:junit:$junit_version"
}

afterEvaluate {
    android.libraryVariants.all { variant ->
        def task = project.tasks.create "jar${variant.name.capitalize()}", Jar
        task.description = "Create jar artifact for ${variant.name}"
        task.dependsOn variant.javaCompile
        task.from variant.javaCompile.destinationDir
        task.destinationDir = project.file("${project.buildDir}/outputs/jar")
        task.archiveName = "${project.name}-${variant.baseName}-${version}.jar"
        artifacts.add('archives', task);
    }
}

task sourcesJar(type: Jar) {
    from android.sourceSets.main.java.srcDirs
    classifier = 'sources'
}

artifacts {
    archives sourcesJar
}

Can anybody help?

apache http & android have a [long](http://stackoverflow.com/questions/3577035/apache-httpclient-4-1-on-android) & [complicated](http://stackoverflow.com/questions/31653002/how-to-use-the-legacy-apache-http-client-on-android-marshmallow) history.. Maybe you can generate your classes with a different http library as base? — zapl, May 09 '16 at 09:53

LightySnake · Accepted Answer · 2016-06-06T07:09:22.583

3

if you try to generate the default template from Swagger-Editor you get the apache http version.

Clone Swagger-Codegen project from github, follow the instructions and make the client using volley, okhttp-gson, retrofit, etc..

UPDATE

To generate Android Volley Client:

java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar generate -i <your_path_to_swagger.json> -l android --library=volley -o <output_path>

To generate Java okhttp-gson:

java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar generate -i <your_path_to_swagger.json> -l java --library=okhttp-gson -o <output_path>

In both case after you have generated the project navigate to the project folder and then use

mvn package

And you will fild the library jar on \target

edited Jun 06 '16 at 07:09

answered Jun 03 '16 at 07:22

LightySnake

78
2
11

Can you help me on how to do it I am new to this I ran "java -jar C:\swagger-codegen-cli-2.1.6.jar generate -i -l android -o samples/client/sd/android" and it passed me the apache http version but I don't know how to generate the Volley version. Thanks :) – Ali Shah lakhani Jun 04 '16 at 09:22
I've updated the answer, if you check you will find other info on swagger-codegen github page. – LightySnake Jun 06 '16 at 07:10

Cannot call the API using Swagger-UI's jar file

1 Answers1