NoSuchMethodError on ews-java-api

Question

У меня возникли проблемы с использованием веб-сервисов обмена для Java. Я следую NoSuchMethodError.

java.lang.NoClassDefFoundError: Failed resolution of: Lorg/apache/http/client/protocol/HttpClientContext;

Я попытался переустановить EWS-Java-API несколько раз, но это hasnt было решение проблемы, как я полагал, что это будет.

В настоящее время я работаю в Android Studio.

Полный стек:

03-25 15:37:23.551 1875-1875/com.example.XXXXX.test E/AndroidRuntime﹕ FATAL EXCEPTION: main 
Process: com.example.XXXXXX.test, PID: 1875 
java.lang.NoClassDefFoundError: Failed resolution of: Lorg/apache/http/client/protocol/HttpClientContext; 
     at microsoft.exchange.webservices.data.ExchangeServiceBase.initializeHttpContext(ExchangeServiceBase.java:211) 
     at microsoft.exchange.webservices.data.ExchangeServiceBase.setUseDefaultCredentials(ExchangeServiceBase.java:628) 
     at microsoft.exchange.webservices.data.ExchangeServiceBase.<init>(ExchangeServiceBase.java:158) 
     at microsoft.exchange.webservices.data.ExchangeServiceBase.<init>(ExchangeServiceBase.java:164) 
     at microsoft.exchange.webservices.data.ExchangeService.<init>(ExchangeService.java:3663) 
     at com.example.XXXXXX.test.MainActivity.onCreate(MainActivity.java:25) 
     at android.app.Activity.performCreate(Activity.java:5933) 
     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105) 
     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251) 
     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360) 
     at android.app.ActivityThread.access$800(ActivityThread.java:144) 
     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278) 
     at android.os.Handler.dispatchMessage(Handler.java:102) 
     at android.os.Looper.loop(Looper.java:135) 
     at android.app.ActivityThread.main(ActivityThread.java:5221) 
     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:899) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 
Caused by: java.lang.ClassNotFoundException: Didn't find class "org.apache.http.client.protocol.HttpClientContext" on path: DexPathList[[zip file "/data/app/com.example.XXXXXXX.test-1/base.apk"],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  microsoft.exchange.webservices.data.ExchangeServiceBase.initializeHttpContext(ExchangeServiceBase.java:211) 
at microsoft.exchange.webservices.data.ExchangeServiceBase.setUseDefaultCredentials(ExchangeServiceBase.java:628) 
at microsoft.exchange.webservices.data.ExchangeServiceBase.<init>(ExchangeServiceBase.java:158) 
at microsoft.exchange.webservices.data.ExchangeServiceBase.<init>(ExchangeServiceBase.java:164) 
at microsoft.exchange.webservices.data.ExchangeService.<init>(ExchangeService.java:3663) 
at com.example.XXXXXX.test.MainActivity.onCreate(MainActivity.java:25) 
at android.app.Activity.performCreate(Activity.java:5933) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360) 
at android.app.ActivityThread.access$800(ActivityThread.java:144) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:135) 
at android.app.ActivityThread.main(ActivityThread.java:5221) 
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:899) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 
Suppressed: java.lang.ClassNotFoundException: org.apache.http.client.protocol.HttpClientContext 
     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) 
     ... 20 more 
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available 

Эти зависимости в build.gradle:

dependencies { 
compile fileTree(dir: 'libs', include: ['*.jar']) 
compile 'com.android.support:appcompat-v7:19.0.0' 
//compile 'org.apache.httpcomponents:httpclient:4.4' 
//compile 'org.apache.httpcomponents:httpcore:4.3.3' 
//compile 'commons-logging:commons-logging:1.2' 
//compile 'joda-time:joda-time:2.7' 
} 

И вот OnCreate я в настоящее время тестирования:

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    ExchangeService service = new ExchangeService(); // this is where the error is hitting 
    ExchangeCredentials credentials = new WebCredentials("user", "pw"); 
    service.setCredentials(credentials); 

    try { 
     service.setUrl(new URI("uri")); 
    } catch (URISyntaxException e) { 
     e.printStackTrace(); 
    } 

    EmailMessage msg= null; 
    try { 
     msg = new EmailMessage(service); 
     msg.setSubject("Hello world!"); 
     msg.setBody(MessageBody.getMessageBodyFromText("Sent using the EWS Java API.")); 
     msg.getToRecipients().add("email"); 
     msg.send(); 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 


} 

Answer 1

Попробуйте добавить

compile 'org.apache.httpcomponents:httpclient:4.4'

в вашем build.gradle файле

Answer 2

Скачать HttpClientContext jar, а затем включите его в пути к классам, а затем дать ему попробовать :)