[XALANJ-1447] NullPointerException while using key() function

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: 2.5, 2.4, 2.4Dx
• Component/s: XPath
• Security Level: No security risk; visible to anyone (Ordinary problems in Xalan projects. Anybody can view the issue.)
• Environment: Operating System: Windows NT/2K; Platform: PC
• Bugzilla Id: 18008
• Assignee: Christine Li
• Reporter: Luboš Hartman
• Created: 15/Mar/03 02:19
• Updated: 11/Aug/05 14:07

Description

I have the stylesheet containing:
<xsl:key name="bt-data" match="//bt:data" use="@id" />
<xsl:key name="uc-attribute" match="//uc:attribute" use="@name" />

If I use this keys this way:
<xsl:value-of select="key('bt-data', key('uc-
attribute', 'list1.0.A003')/@data)" />

NullPointerException is thrown. If an element is found by key uc-attribute, the
exception is thrown. If no element is found by key uc-attribute, no exception
is thrown. This problem occurs in Xalan version 2.4.0, 2.4.1 and 2.5.D1.
Versions 2.2.0 and 2.3.1 works fine.