EL expressions do not work in tag file (tomcat 6.26)

[赵顺]

my web.xml

----------
<web-app xmlns="http://java.sun.com/xml/ns/j2ee";
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd";
    version="2.4">
use jsp 2.4
------
    <jsp-config>
 <taglib>
       <taglib-uri>jet</taglib-uri>
       <taglib-location>/WEB-INF/jet.tld</taglib-location>
    </taglib>
        <jsp-property-group>
            <url-pattern>*.jsp</url-pattern>
            <el-ignored>false</el-ignored>
            <page-encoding>UTF-8</page-encoding>
            <scripting-invalid>true</scripting-invalid>
        </jsp-property-group>
           <jsp-property-group>
            <url-pattern>*.tag</url-pattern>
            <el-ignored>false</el-ignored>
            <page-encoding>UTF-8</page-encoding>
            <scripting-invalid>true</scripting-invalid>
        </jsp-property-group>
    </jsp-config>
-----
and the el expressions works fine in jsp file such as ${1+1} ${var}
but the same expressions do not work in .taf file it print out the
expression directly

It both work fine in tomcat 6.0.18

but in 6.0.26  the tag file did not show expression correctly




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