[AXIS2-5716] In the admin console the seiMethodHeaderParameter service parameter should not be modifiable

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.6.2
• Fix Version/s: 1.7.3
• Component/s: admin console
• Assignee: Andreas Veithen
• Reporter: Olivier Vanekem
• Created: 18/Aug/15 22:32
• Updated: 29/May/16 17:42
• Resolved: 29/May/16 17:42

Description

In the admin console, some services are automatically tagged with the seiMethodHeaderParameter service parameter.
This parameter takes an array as value instead of a String.
Because it appears in the parameters in the console, changing any other parameter for the service will also send a value to this seiMethodHeaderParameter parameter. This issue is that the admin console sends all parameter values as String and therefore the seiMethodHeaderParameter now contains a String value instead of an array.

This will result in an exception of the service at runtime with a ClassCastException cannot cast a String into an array.

See such an exception below:

[ERROR] java.lang.String cannot be cast to java.util.ArrayList
java.lang.ClassCastException: java.lang.String cannot be cast to java.util.ArrayList
	at org.apache.axis2.jaxws.dispatchers.MustUnderstandUtils.getHeaderParamaterList(MustUnderstandUtils.java:105)
	at org.apache.axis2.jaxws.dispatchers.MustUnderstandUtils.markUnderstoodHeaderParameters(MustUnderstandUtils.java:64)
	at org.apache.axis2.jaxws.dispatchers.MustUnderstandChecker.doInvoke(MustUnderstandChecker.java:49)
	at org.apache.axis2.handlers.AbstractTemplatedHandler.invoke(AbstractTemplatedHandler.java:44)
	at org.apache.axis2.engine.Phase.invokeHandler(Phase.java:340)
	at org.apache.axis2.engine.Phase.invoke(Phase.java:313)
	at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:262)
	at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:168)
	at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172)
	at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:751)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:844)

Looking at the code of MustUnderstandUtils, we see indeed that it tries to retrieve the value of the seiMethodHeaderParameter service parameter as in:

ArrayList seiMethodHeaders = (ArrayList)axisService.getParameterValue("seiMethodHeaderParameter");

And this generates the exception because we changed (another) service parameter but the admin console updated also seiMethodHeaderParameter with a string value.