JSF <f:validator> and Bootstrap do not work together - forms

Question

I am trying to get my JSF Register form working with Bootstrap styles. Everything works fine, but i do not know how i can integrate my validation messages into my form. If i render this code the validation messages are just ignored. I don't know why? Any idea how i can make them visible and maybe style them good-looking? Many thanks in advance for your help!
<!-- Register Form -->
<h:form role="form" style="width: 400px; margin: 0 auto;">
<!-- User name -->
<div class="required-field-block">
<h:outputLabel for="name" value="Benutzername"></h:outputLabel>
<h:inputText id="name" value="#{userBean.user.name}"
validatorMessage="gültigen Benutzernamen mit 4-116 Zeichen" class="form-control">
<f:validateLength minimum="4" maximum="16" for="name"></f:validateLength>
</h:inputText>
<div class="required-icon">
<div class="text">*</div>
</div>
</div>
<!-- Password -->
<div class="required-field-block">
<h:outputLabel for="password" value="Passwort"></h:outputLabel>
<h:inputSecret id="password" value="#{userBean.user.password}"
class="form-control" required="true"
requiredMessage="Mailadresse angeben">
</h:inputSecret>
<div class="required-icon">
<div class="text">*</div>
</div>
</div>
<!-- Email -->
<div class="required-field-block">
<h:outputLabel for="email" value="Email"></h:outputLabel>
<h:inputText id="email" value="#{userBean.user.email}"
class="form-control" required="true"
requiredMessage="Passwort angeben">
<!-- Email Validation -->
<f:validator validatorId="emailValidator"></f:validator>
</h:inputText>
<div class="required-icon">
<div class="text">*</div>
</div>
</div>
<!-- Age -->
<div>
<h:outputLabel for="age" value="Alter"></h:outputLabel>
<h:inputText id="age" value="#{userBean.user.age}" class="form-control"></h:inputText>
<h:message for="age"></h:message>
</div>
<h:commandButton id="send" value="Register" type="submit"
action="#{userBean.addUser}" class="btn btn-primary"></h:commandButton>
<h:message for="send"></h:message>
<h:commandButton id="reset" value="Reset" type="submit"
action="#{userBean.reset}" immediate="true" class="btn"></h:commandButton>
<h:message for="send" errorClass="errorMessage" globalAll="true"></h:message>
</h:form>

Answer 1

Just use jsf tag <h:message/> under each required input with attribute for where you should point input's id.
Also for good-looking style you can add bootstrap class "text text-danger". Also you can use attribute label for <h:inputText>.
It means you will get following error:
Email:Validation Error
instead of
email-id: Validation error.
For example:
<h:outputLabel for="email" value="Email"></h:outputLabel>
<h:inputText id="email-id" label="Email" value="#{userBean.user.email}"
class="form-control" required="true"
requiredMessage="Passwort angeben">
<!-- Email Validation -->
<f:validator validatorId="emailValidator"></f:validator>
</h:inputText>
<h:message for="email-id"/>