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https://issues.apache.org/struts/browse/STR-2996?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Josh Landin reassigned STR-2996:
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Assignee: Don Brown
> ImportAttributeTag throws a NullPointerException when ignore=true and the
> attribute value is not available
> ----------------------------------------------------------------------------------------------------------
>
> Key: STR-2996
> URL: https://issues.apache.org/struts/browse/STR-2996
> Project: Struts 1
> Issue Type: Bug
> Components: Tiles
> Affects Versions: 1.3.5
> Environment: All
> Reporter: Josh Landin
> Assigned To: Don Brown
>
> This bug is from regression caused by the fix for STR-2809.
> Given the JSP with:
> <tiles:importAttribute name="doesntExist" ignore="true"/>
> The following exception occurs:
> java.lang.NullPointerException
> at java.util.Hashtable.put(Hashtable.java:393)
> at
> org.apache.jasper.runtime.PageContextImpl.setAttribute(PageContextImpl.java:238)
> at
> org.apache.struts.tiles.taglib.ImportAttributeTag.doStartTag(ImportAttributeTag.java:167)
> This is due to the ImportAttributeTag class incorrectly calling
> pageContext.setAttribute with a null value. This call was previously
> unreachable prior to the fix for STR-2809 which eliminated the SKIP_BODY
> returns when ignore=true.
> The behavior of the PageContext implementation is consistent with the Servlet
> 2.2 Specification:
> http://java.sun.com/products/servlet/2.2/javadoc/javax/servlet/jsp/PageContext.html#setAttribute(java.lang.String,%20java.lang.Object,%20int)
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