(Eclipse) JasperStudio JasperReports Server Access Configuration: AxisFault: NullPointerException

Got this error on Repository Explorer->Create JasperReports Server Connection

Error Details:
----------------------------------------------------------------------------------------------
AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
faultSubcode:
faultString: java.lang.NullPointerException
faultActor:
faultNode:
faultDetail:
{http://xml.apache.org/axis/}stackTrace:java.lang.NullPointerException
at org.apache.axis.transport.http.CommonsHTTPSender.invoke(CommonsHTTPSender.java:193)
...
Caused by: java.lang.NullPointerException
at org.apache.axis.transport.http.CommonsHTTPSender.invoke(CommonsHTTPSender.java:193)

although the calling the server URL, e.g. http://somehost:8080/jasperserver/services/repository works in the browser stating:

repository

Hi there, this is an AXIS service!

Perhaps there will be a form for invoking the service here...

Using JasperServer 5.2.0 and JasperStudio 5.5.0.

Solution

This may likely be due to some local HTTP proxy setup problem.

To solve this you can try the following:

Window->Preferences->General->Network Connections->
1. Provider: Manual (where Eclipse proxy settings are applied)
2. (adjust proxy rules as desired) (try including/excluding rules matching your jasper server host)
3. restart Eclipse (important!)

I found this solution a little hidden here: Jasper forum question 3143 comment 16.