myattr.put("testKey", "hello");
AttributeStatementType attState = StatementUtil.createAttributeStatement(myattr);
assertion.addStatement(attState);
request.addOption(GeneralConstants.ASSERTION, assertion);
handler.handleStatusResponseType(request, response);
Map<String, List<Object>> sessionMap = (Map<String, List<Object>>) session
.getAttribute(GeneralConstants.SESSION_ATTRIBUTE_MAP);
assertNotNull(sessionMap);
List<Object> values = sessionMap.get("testKey");