Merge pull request #231 from oracle/jira-wdt-46-npe-whitespace

JIRA WDT-46 Avoid assigning non-parsable value in YAML

Author: CarolynRountree

core/src/main/java/oracle/weblogic/deploy/yaml/AbstractYamlTranslator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
  * The Universal Permissive License (UPL), Version 1.0
  */
 package oracle.weblogic.deploy.yaml;
@@ -72,7 +72,11 @@ public void enterAssign(YamlParser.AssignContext ctx) {
         PyObject value = getAssignValue(name, ctx);
 
         PyDictionary container = currentDict.peek();
-        container.__setitem__(new PyString(name), value);
+
+        // null indicates not parsable, Py.None would be returned for legitimate cases
+        if (value != null) {
+            container.__setitem__(new PyString(name), value);
+        }
     }
 
     /**