title: Unable to download an image in android
body: <p>I need to download twitter profile picture of mine and show it in an imageview on click of a button. Here is my code to download the profile picture of desired user.</p>
  
  <pre><code>public static InputStream getTwitterProfilePictureOfUser(String twitterId){
      try {
          return new DefaultHttpClient().execute(new HttpGet("http://api.twitter.com/1/users/profile_image?user_id="+twitterId+"&amp;size=bigger")).getEntity().getContent();
      } catch (Exception e) {
          e.printStackTrace();
          return null;
      } 
  } 
  </code></pre>
  
  <p>Getting the following exceptions. Where i'am going wrong ?</p>
  
  <pre><code> javax.net.ssl.SSLException: Not trusted server certificate
  at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:371)
  at org.apache.http.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:92)
  at org.apache.http.conn.ssl.SSLSocketFactory.createSocket(SSLSocketFactory.java:381)
  at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:174)
  at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
  at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
  at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:348)
  at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
  at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
  at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
  at com.tarams.android.giveblood.service.ServiceStub.getTwitterProfilePictureOfUser(ServiceStub.java:207)
      at com.tarams.android.giveblood.activities.ProfileActivity.onCreate(ProfileActivity.java:128)
  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2633)
  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2685)
  at android.app.ActivityThread.access$2300(ActivityThread.java:126)
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2038)
  at android.os.Handler.dispatchMessage(Handler.java:99)
  at android.os.Looper.loop(Looper.java:123)
  at android.app.ActivityThread.main(ActivityThread.java:4633)
  at java.lang.reflect.Method.invokeNative(Native Method)
  at java.lang.reflect.Method.invoke(Method.java:521)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
  at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: TrustAnchor for CertPath not found.
  at org.apache.harmony.xnet.provider.jsse.TrustManagerImpl.checkServerTrusted(TrustManagerImpl.java:168)
  at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:366)
  ... 24 more
   Caused by: java.security.cert.CertPathValidatorException: TrustAnchor for CertPath not found.
  at org.bouncycastle.jce.provider.PKIXCertPathValidatorSpi.engineValidate(PKIXCertPathValidatorSpi.java:149)
  at java.security.cert.CertPathValidator.validate(CertPathValidator.java:202)
  at org.apache.harmony.xnet.provider.jsse.TrustManagerImpl.checkServerTrusted(TrustManagerImpl.java:164)
  </code></pre>