[AXIS2-5501] Creating ServiceClient with ConfigContext created using createDefaultConfigurationContext() causes NullPointerException

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Not A Problem
• Affects Version/s: 1.6.0, 1.6.1, 1.6.2
• Fix Version/s: 1.5.6
• Component/s: transports
• Labels: nullpointer transport
• Environment: Any. Testing on Windows 7 with java 1.5.
• Assignee: Kishanthan Thangarajah
• Reporter: Barry Tarlton
• Created: 15/Mar/13 14:04
• Updated: 24/Jan/14 17:59
• Resolved: 13/Jul/13 07:48

Description

Something has changed from 1.5.6 to 1.6.0 in the axis2-transport-http.jar that causes a null pointer exception if you initialize your ServiceClient with an ConfigurationContext that was created by calling ConfigurationContextFactory.createDefaultConfigurationContext().

Here's the modified sample that shows the behavior:

public class EchoBlockingClient {
private static EndpointReference targetEPR = new EndpointReference("http://localhost:8080/checkSoap");

public static void main(String[] args) throws Exception {
try

{ OMElement payload = ClientUtil.getEchoOMElement(); Options options = new Options(); options.setTo(targetEPR); options.setAction("urn:echo"); // create config using defaultConfigurationContext... // this does not initialize the transportOutDescription's sender's transportOut and causes a null pointer ConfigurationContext defaultContext= ConfigurationContextFactory.createDefaultConfigurationContext(); // this initializes the transportOut.sender.transportOut properly and allows it to work. // ConfigurationContext defaultContext= ConfigurationContextFactory.createConfigurationContextFromFileSystem(null, null); //Blocking invocation ServiceClient sender = new ServiceClient(defaultContext, null); sender.setOptions(options); OMElement result = sender.sendReceive(payload); System.out.println(result); }

catch (AxisFault axisFault)

{ axisFault.printStackTrace(); }

}

I see the following exception when doing so:

Exception in thread "main" java.lang.NullPointerException
at org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:172)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:443)

This is because the TransportOutDescription is never set on the CommonHTTPTransportSender.

If I change the code and use the

ConfigurationContext defaultContext= ConfigurationContextFactory.createConfigurationContextFromFileSystem(null, null);

Then this code works fine.

I can also, just replace the axis2-transport-http-1.6.0.jar with the axis2-transport-http-1.5.6.jar and it will work either way.