I am trying to use the EWS Java API v1.1.5 (http://archive.msdn.microsoft.com/ewsjavaapi) in an Android application, and have run into a number of issues. I downloaded the source, and followed the instructions provided to compile the EWS Java API in Eclipse. In those instructions you are told to download and add the following pre-requiste jar file dependencies:

  • commons-codec-1.4.jar
  • commons-httpclient-3.1.jar
  • commons-logging-1.1.1.jar
  • jcifs-1.3.15.jar

I did this, and followed the build instructions with produced the following jar files:

  • EWSAPI-1.1.0.jar
  • EWSAPIWithJars-1.1.0

Next, I built a brand new Android application, added the appropriate permissions to the manifest, and then added the following source to the primary activity's OnCreate:

ExchangeService service = new ExchangeService();
ExchangeCredentials credentials = new WebCredentials("emailaddress", "password");       
service.setCredentials(credentials);

try
{
    service.autodiscoverUrl("emailaddress", this);
}
catch (Exception e)
{       
    e.printStackTrace();
}

I first tried running this application with the EWSAPI-1.1.0.jar file as a dependency. When I did that, I obtained the following fatal error:

Uncaught handler: thread main exiting due to uncaught exception java.lang.NoClassDefFoundError: org.apache.commons.httpclient.MultiThreadedHttpConnectionManager at microsoft.exchange.webservices.data.ExchangeServiceBase.(Unknown Source) at microsoft.exchange.webservices.data.ExchangeServiceBase.(Unknown Source) at microsoft.exchange.webservices.data.ExchangeService.(Unknown Source) at com.meshin.exchange.ExchangeDiscoveryActivity.onCreate(ExchangeDiscoveryActivity.java:40)

From what I've researched, it seems like this error is being generated because Android comes with the Apache HttpClient 4.0, which doesn't appea

android exchangewebservices apache-commons-httpclient ewsjavaapi
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