Re: Tiles 2 - problem with putList tag.

[David H. DeWolf]

It may not have been announced to the user community yet (we're still 
getting things like our infrastructure and website up to snuff), but 
Tiles has graduated to a Top Level Project.  Because of this, we now 
have our own mailing lists.

I'm moving this discussion to users@tiles.apache.org, please continue it 
there.


David

amboss wrote:
Hi,

I have problem using putList tag on jsp page. Namely I`m trying to use 
definition that looks like this:
  <definition name="tilestest.layout.list" template="/listLayout.jsp">
    <putList name="testlist">
        <add value="listItem0" type="string"/>
        <add value="listItem1" type="string"/>
        <add value="listItem2" type="string"/>
    </putList>
  </definition>
On a page whose contains code:
<tiles:insertDefinition name="tilestest.layout.list">
    <tiles:putList name="testList">
        <tiles:add value="item_00" type="string"/>
        <tiles:add value="item_01" type="string"/>
        <tiles:add value="item_02" type="string"/>
        <tiles:add value="item_03" type="string"/>
        <tiles:add value="item_04" type="string"/>
    </tiles:putList>
</tiles:insertDefinition>
Unfortunately this cause some problems which results in exception in jboss logs.
org.apache.jasper.JasperException caused by:
java.lang.NullPointerException
org.apache.tiles.taglib.PutListTag.release(PutListTag.java:60)
org.apache.jasper.runtime.TagHandlerPool.release(TagHandlerPool.java:146)

Layout page looks like:
<tiles:importAttribute name="testlist"/>
<ul>
    <c:forEach var="item" items="${testlist}">
        <li><c:out value="${item}" /></li>
    </c:forEach>
</ul>

This problem occurs only when I`m trying to change values on the list in the 
jsp page. It works just fine when I`m using values form the definition in xml 
or I use  my own ViewPreparer to change default values.

Could you please help me with this issue?

I`m using tiles2 snapshot on jboss-4.0.3SP1 with java 1.5.0_6 on Linux box.