improved exception tracing

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/utils/TransformationUtils.java

@@ -78,7 +78,7 @@ public final class TransformationUtils {
 			}
 		}
 		if(e != null) {
-			throw e;
+			throw new ChainTransformationFailedException(null, null, null, e);
 		}
 		throw new ChainTransformationFailedException(null, null, null, null) {
 			/** {@inheritDoc} */