Coverity static analysis, Dereference null return value, CredentialStoreAliasDefinition (elytron-subsystem)

    private static void transformOperationAddress(final ModelNode operation) {
        Property alias = propertyAliasFromOperation(operation);
        String newAlias = alias.getValue().asString().toLowerCase(Locale.ROOT);
        alias.getValue().set(newAlias);
    }

    private static boolean sameAlias(final OperationContext context, final ModelNode operation) {
        String contextAlias = context.getCurrentAddress().getLastElement().getValue();
        String operationAlias = propertyAliasFromOperation(operation).getValue().asString();
        return  operationAlias.equals(contextAlias);
    }

    private static Property propertyAliasFromOperation(final ModelNode operation) {
        ModelNode address = operation.get(ModelDescriptionConstants.OP_ADDR);
        List<Property> list = address.asPropertyList();
        Property alias = null;
        for (Property p: list) {
            if (ElytronDescriptionConstants.ALIAS.equals(p.getName())) {
                alias = p;
                break;
            }
        }
        return alias;
    }