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I am using WSO2 IS v5.1.0. and trying to create a Service Provider Application.
I tried all posted network asked question solution, but still getting the same Exception.

org.apache.axis2.AxisFault: The input stream for an incoming message is null.

And when trying to create/register the same application name then throwing the following Exception:

org.apache.axis2.AxisFault: Error while creating application role: Application/ServiceProviderAppTest with user admin

Testing code for the Service Provide application:

package com.customserviceprovider;

import java.rmi.RemoteException;

import org.apache.axis2.Constants;
import org.apache.axis2.client.Options;
import org.apache.axis2.client.ServiceClient;
import org.apache.axis2.transport.http.HTTPConstants;
import org.apache.axis2.transport.http.HttpTransportProperties;
import org.wso2.carbon.identity.application.common.model.xsd.InboundAuthenticationConfig;
import org.wso2.carbon.identity.application.common.model.xsd.InboundAuthenticationRequestConfig;
import org.wso2.carbon.identity.application.common.model.xsd.Property;
import org.wso2.carbon.identity.application.common.model.xsd.ServiceProvider;
import org.wso2.carbon.identity.application.mgt.stub.IdentityApplicationManagementServiceStub;
import org.wso2.carbon.identity.oauth.stub.OAuthAdminServiceException;
import org.wso2.carbon.identity.oauth.stub.OAuthAdminServiceStub;
import org.wso2.carbon.identity.oauth.stub.dto.OAuthConsumerAppDTO;



public class IdentityClient 
 private final static String SERVER_URL = "https://localhost:9443/services/";

 public static void main(String args) throws RemoteException, OAuthAdminServiceException 

 String appName = "ServiceProviderAppTest";
 String appDescription = "Test description for ServiceProviderAppTest";

 System.setProperty("javax.net.ssl.trustStore", "D:\wso2carbon.jks");
 System.setProperty("javax.net.ssl.trustStorePassword", "wso2carbon");


 try 
 IdentityApplicationManagementServiceStub IAMStub = new IdentityApplicationManagementServiceStub(
 null, SERVER_URL + "IdentityApplicationManagementService");

 ServiceClient IAMClient = IAMStub._getServiceClient();

 authenticate(IAMClient);
 ServiceProvider serviceProvider = new ServiceProvider();
 serviceProvider.setApplicationName(appName);
 serviceProvider.setDescription(appDescription);
 IAMStub.createApplication(serviceProvider);//throwing Exception

 catch (Exception e) 
 e.printStackTrace();
 
 

 public static void authenticate(ServiceClient client) 
 Options option = client.getOptions();
 option.setProperty(Constants.Configuration.MESSAGE_TYPE,HTTPConstants.MEDIA_TYPE_APPLICATION_ECHO_XML);
 option.setProperty(Constants.Configuration.DISABLE_SOAP_ACTION,Boolean.TRUE);
 HttpTransportProperties.Authenticator auth = new HttpTransportProperties.Authenticator();
 auth.setUsername("admin");
 auth.setPassword("admin");
 auth.setPreemptiveAuthentication(true);
 option.setProperty(org.apache.axis2.transport.http.HTTPConstants.AUTHENTICATE, auth);
 option.setManageSession(true);
 

Even though with Exception Application is creating on Server.

Any help to solve the exception incoming message is null.