public void setCustomProperties(final Map<String, Object> customProperties) {
        CommonHelper.assertNotNull("customProperties", customProperties);
        this.customProperties =  customProperties;
    }
<p>Setter for the field <code>customProperties</code>.</p>

@param customProperties a {@link Map} object
pac4j-core/src/main/java/org/pac4j/core/client/BaseClient.java