Hi Alain,
Thanks for your reply. I am using Conatct API but I am getting beloww
exception. I have set all OAuth Parameters. Still I am getting below
Exception. There is no proper solution for this exception in any
forums.Please help me on this.
java.lang.NullPointerException: No authentication header information
com.google.gdata.util.AuthenticationException.initFromAuthHeader(AuthenticationException.java:96)
com.google.gdata.util.AuthenticationException.<init>(AuthenticationException.java:67)
com.google.gdata.client.http.HttpGDataRequest.handleErrorResponse(HttpGDataRequest.java:600)
com.google.gdata.client.http.GoogleGDataRequest.handleErrorResponse(GoogleGDataRequest.java:563)
com.google.gdata.client.http.HttpGDataRequest.checkResponse(HttpGDataRequest.java:552)
com.google.gdata.client.http.HttpGDataRequest.execute(HttpGDataRequest.java:530)
com.google.gdata.client.http.GoogleGDataRequest.execute(GoogleGDataRequest.java:535)
com.google.gdata.client.Service.getFeed(Service.java:1135)
com.google.gdata.client.Service.getFeed(Service.java:998)
com.google.gdata.client.GoogleService.getFeed(GoogleService.java:631)
com.google.gdata.client.Service.getFeed(Service.java:1017)
org.apache.jsp.addcontact_jsp._jspService(addcontact_jsp.java:180)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
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