Created a deep copy of model_dict to ensure it's treated as a "read-only'" reference variable, during the entire validation process

Author: mwooten

core/src/main/python/wlsdeploy/tool/validate/validator.py

@@ -3,6 +3,7 @@
 The Universal Permissive License (UPL), Version 1.0
 """
 import os
+import copy
 
 from oracle.weblogic.deploy.util import WLSDeployArchive
 from oracle.weblogic.deploy.util import VariableException
@@ -108,9 +109,11 @@ def validate_in_standalone_mode(self, model_dict, variables_file_name=None, arch
         """
         _method_name = 'validate_in_standalone_mode'
 
+        cloned_model_dict = copy.deepcopy(model_dict)
+
         self._logger.entering(variables_file_name, archive_file_name, class_name=_class_name, method_name=_method_name)
         self._validation_mode = _ValidationModes.STANDALONE
-        self.__validate_model_file(model_dict, variables_file_name, archive_file_name)
+        self.__validate_model_file(cloned_model_dict, variables_file_name, archive_file_name)
 
         self._logger.exiting(class_name=_class_name, method_name=_method_name)
         return self._validation_results
@@ -137,10 +140,12 @@ def validate_in_tool_mode(self, model_dict, variables_file_name=None, archive_fi
         """
         _method_name = 'validate_in_tool_mode'
 
+        cloned_model_dict = copy.deepcopy(model_dict)
+
         self._logger.entering(variables_file_name, archive_file_name, class_name=_class_name, method_name=_method_name)
         return_code = Validator.ReturnCode.STOP
         self._validation_mode = _ValidationModes.TOOL
-        self.__validate_model_file(model_dict, variables_file_name, archive_file_name)
+        self.__validate_model_file(cloned_model_dict, variables_file_name, archive_file_name)
 
         status = Validator.ValidationStatus.VALID