Hi, I am trying to write a RESTful client for Android platform using Jersey API. I am using ADT for Eclipse. Below is the source code
import android.app.Activity; import android.os.Bundle; import android.widget.TextView; public class AndroidJerceyClientActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); TextView textView = (TextView) findViewById(R.id.outputTextView); try { RESTfulClientImplementation restClient = new RESTfulClientImplementation(); String response = restClient.doGet(); textView.setText(response); } catch (Exception e) { textView.setText(e.getMessage()); } } } public class RESTfulClientImplementation { private ClientConfig configLight; private Client client; public RESTfulClientImplementation() { configLight = new DefaultClientConfig(); client = Client.create(configLight); } public String doGet() { try { WebResource service = client.resource(new URI( "http://smartbridge.homeip.net")); String response = service.path("api").path("00178800ffd9") .path("messagequeue").path("2") .accept(MediaType.APPLICATION_JSON).get(String.class); System.out.println("Complete Response Jercey API: " + response); return response; } catch (Exception e) { } return null; } } If I try to deploy this application I am getting an exception. Below is the trace from LogCat 10-11 09:56:21.854: WARN/dalvikvm(474): threadid=1: thread exiting with uncaught exception (group=0x4001d800) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): FATAL EXCEPTION: main 10-11 09:56:22.123: ERROR/AndroidRuntime(474): java.lang.ExceptionInInitializerError 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at com.sun.jersey.core.spi.factory.MessageBodyFactory._getMessageBodyReader(MessageBodyFactory.java: 311) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at com.sun.jersey.core.spi.factory.MessageBodyFactory.getMessageBodyReader(MessageBodyFactory.java: 298) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at com.sun.jersey.api.client.ClientResponse.getEntity(ClientResponse.java: 536) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at com.sun.jersey.api.client.ClientResponse.getEntity(ClientResponse.java: 506) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at com.sun.jersey.api.client.WebResource.handle(WebResource.java:674) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at com.sun.jersey.api.client.WebResource$Builder.get(WebResource.java: 503) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at org.philips.jerceyclient.RESTfulClientImplementation.doGet(RESTfulClientImplementation.java: 42) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at org.philips.jerceyclient.AndroidJerceyClientActivity.onCreate(AndroidJerceyClientActivity.java: 17) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java: 1047) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java: 2627) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java: 2679) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at android.app.ActivityThread.access$2300(ActivityThread.java:125) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at android.os.Handler.dispatchMessage(Handler.java:99) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at android.os.Looper.loop(Looper.java:123) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at android.app.ActivityThread.main(ActivityThread.java:4627) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at java.lang.reflect.Method.invokeNative(Native Method) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at java.lang.reflect.Method.invoke(Method.java:521) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at com.android.internal.os.ZygoteInit $MethodAndArgsCaller.run(ZygoteInit.java:868) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at dalvik.system.NativeStart.main(Native Method) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): Caused by: java.lang.NullPointerException 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at javax.ws.rs.core.MediaType.valueOf(MediaType.java:119) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): at com.sun.jersey.core.header.MediaTypes.<clinit>(MediaTypes.java:64) 10-11 09:56:22.123: ERROR/AndroidRuntime(474): ... 22 more I have added jersey-client-1.9.1.jar and jersey-core-1.9.1.jar in the project classpath. I appreciate if someone help me to solve this problem. Best regards Yeasin Habib -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en