MyFaces 2.2.3 & 2.2.4
jetty-maven-plugin:8.1.15.v20140411
Getting NPE when Flow Scope parameter evaluates to null.
If no value is entered for firstName before “continue” on
campaigns/campaigns.xhtml is clicked, the NPE below thrown. Otherwise the
page2.xhtml is displayed as expected.
***
* campaigns/campaigns.xhtml
***
<h:outputLabel for="firstName" value="First Name" />
<h:inputText id="firstName" value="#{flowScope.firstName}"
maxlength="10" />
<h:commandButton value=“Continue” action=“page2” />
***
* campaigns/page2.xhtml
***
<h:commandButton value=“Exit" action="campaigns-return" />
<h:outputLabel for="firstName" value="First Name" />
<h:inputText id=“firstName" value="#{flowScope.firstName}"
maxlength="10" />
***
* Error displayed when page2.xhtml is returned and firstName is null
***
> java.lang.NullPointerException
>
> viewId=/campaigns/campaigns.xhtml
> location=/Users/paul/Documents/workspace-4.3.2/VenderRollsImporterMockUp/src/main/webapp/campaigns/campaigns.xhtml
> phaseId=UPDATE_MODEL_VALUES(4)
>
> Caused by:
> java.lang.NullPointerException - java.lang.NullPointerException
> at java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1124)
> <HtmlInputText class="class javax.faces.component.html.HtmlInputText”
> clientId="j_id_s:firstName" disabled="false" id="firstName" immediate="false"
> inView="true" localValueSet="true" maxlength="10" readonly="false"
> rendered="true" required="false" size="-2147483648" transient="false"
> valid="false" value="#{flowScope.firstName}"
> location="/campaigns/campaigns.xhtml at line 76 and column 82"/> - State
> size:246 bytes
***
* Scopes Value
***
> Request Parameters
> Name Value
> j_id_s:firstName
> j_id_s:j_id_x Continue
> j_id_s_SUBMIT 1
> jfwid -lbh0f813a
Is this normal?
Paul Spencer
