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Posted to issues@struts.apache.org by "Bruce Phillips (JIRA)" <ji...@apache.org> on 2013/08/09 17:45:55 UTC

[jira] [Resolved] (WW-4168) NullPointerException on Checkboxlist

     [ https://issues.apache.org/jira/browse/WW-4168?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bruce Phillips resolved WW-4168.
--------------------------------

    Resolution: Fixed

Added if statement is isChecked method to verify that the Array of nameValues is not null.  Verified that all tests still pass and that code change fixes issue by building and using the SNAPSHOT version of the JavaTemplates plugin locally.
                
> NullPointerException on Checkboxlist 
> -------------------------------------
>
>                 Key: WW-4168
>                 URL: https://issues.apache.org/jira/browse/WW-4168
>             Project: Struts 2
>          Issue Type: Bug
>          Components: Plugin - Java Templates
>    Affects Versions: 2.3.15.1
>         Environment: tomcat/centos 5
>            Reporter: Greg Huber
>            Assignee: Bruce Phillips
>            Priority: Minor
>             Fix For: 2.3.16
>
>
> Hello,
> I am getting null pointer exceptions on line :
> Caused by: java.lang.NullPointerException
> at template.events.CheckboxListHandler.isChecked(CheckboxListHandler.java:125)
> at template.events.CheckboxListHandler.generate(CheckboxListHandler.java:80)
> at org.apache.struts2.views.java.DefaultTheme.renderTag(DefaultTheme.java:120)
> at org.apache.struts2.views.java.JavaTemplateEngine.renderTemplate(JavaTemplateEngine.java:95)
> at org.apache.struts2.components.UIBean.mergeTemplate(UIBean.java:572)
> at org.apache.struts2.components.UIBean.end(UIBean.java:526)
> we need to check for if(nameValues)!=null
> ie:
> {code:java}
> private Boolean isChecked(Map<String, Object> params, String itemKeyStr) {
>   Boolean checked = false;
>   if (itemKeyStr != null) {
>     String[] nameValues = (String[]) params.get("nameValue");
>     if(nameValues)!=null  // need this <<<<<<<<<<
>       for (String value : nameValues) {
>         if (checked = value.equalsIgnoreCase(itemKeyStr))
>         { break; }
>       }
>     }
>   }
>     return checked;
> }
> {code}
> Cheers Greg

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