Test Flow of DeliveryRequest from "End-To-End" & Fix Bugs

Schema Changes:
- Remove mzs:DeliveryRequest/TnvzMetaData because all metadata fields
  can be collected from DeliveryRequest and redundancy is not needed.

Fixes and Refactoring in preprocess:
- MzsDeliveryRequestValidator: Instead of returning false, throw an
  exception when a condition is not met, and explain which condition
  is not met / why it is not met in the exception's message.
- Integrate interface change in ConfigProfileGenerator and
  DeliveryRequestAugmenter.
- Rewrite and simplify DeliveryRequestAugmenter's augmentation.
- ConfigUtil Fixes: Ensure that we do not override the wrong
  parameters while merging. This error appeared in tnvz / msg client,
  connection / receive timeout, key / trust store, and lax hostname
  verification / trust all.

Fix Bugs in Interceptor / SoapUtils:
- Problem: DOM access and information extraction was implemented
  somewhat sloppy.
- SolutioN: Change DOM access interface to access DOM more
  efficiently. Add boundary checks and handle edge cases while
  extracting information from SOAP Messages.
- Test those changes properly.

Testing:
- Implement Delivery Request Flow in ITEndToEndTest.
- Start application on random port instead of fixed port when running
  integration tests.
- Add assertions to tests in ITMzsServiceTest suite.

Others Bug Fixes:
- ServicesConfig: Ensure that mzs service and msg service run on
  different endpoint addresses (/msg and /mzs).
- DeliveryRequestBackend: Throw exception when binary message is
  missing. Don't wrap the exception.
- SaveResponseToFileSink: Wrap Response in JAXB Element (otherwise,
  marshaller does not recognize it)

1 files changed, 4 insertions, 0 deletions

diff --git a/src/main/java/at/gv/egiz/moazs/scheme/Marshaller.java b/src/main/java/at/gv/egiz/moazs/scheme/Marshaller.java
index 83ace5c..1a86079 100644
--- a/src/main/java/at/gv/egiz/moazs/scheme/Marshaller.java
+++ b/src/main/java/at/gv/egiz/moazs/scheme/Marshaller.java
@@ -32,6 +32,10 @@ public class Marshaller {
     }
 
     public <T> String marshallXml(final T obj) {
+        if (obj == null) {
+            return "null";
+        }
+
         StringWriter sw = new StringWriter();
         Result result = new StreamResult(sw);
         jaxbMarshaller.marshal(obj, result);