LPD-58531 Add null check and use master configuration entry if it exists

Author: brianikim

modules/apps/commerce/commerce-service/src/main/java/com/liferay/commerce/internal/order/DefaultCommerceOrderValidatorImpl.java

@@ -97,6 +97,13 @@ public CommerceOrderValidatorResult validate(
 					_classNameLocalService.getClassNameId(CPDefinition.class),
 					cpInstance.getCPDefinitionId(), cpConfigurationListId);
 
+			if (cpConfigurationEntry == null) {
+				CPDefinition cpDefinition = cpInstance.getCPDefinition();
+
+				cpConfigurationEntry =
+					cpDefinition.fetchMasterCPConfigurationEntry();
+			}
+
 			cpDefinitionInventoryEngine =
 				_cpDefinitionInventoryEngineRegistry.
 					getCPDefinitionInventoryEngine(
@@ -206,6 +213,13 @@ public CommerceOrderValidatorResult validate(
 					_classNameLocalService.getClassNameId(CPDefinition.class),
 					cpInstance.getCPDefinitionId(), cpConfigurationListId);
 
+			if (cpConfigurationEntry == null) {
+				CPDefinition cpDefinition = cpInstance.getCPDefinition();
+
+				cpConfigurationEntry =
+					cpDefinition.fetchMasterCPConfigurationEntry();
+			}
+
 			cpDefinitionInventoryEngine =
 				_cpDefinitionInventoryEngineRegistry.
 					getCPDefinitionInventoryEngine(