Problem with Tomcat 5.5

[Gabriel Logan]

I have followed procedure stated for Mr. Rob Winch, with Tomcat 5.5 and 7.0, in order to understand Spring Security and other matters as Gridle. With the last versión all run ok, but when I launch spring-security-samples-tutorial's application on my Internet Explorer(Tomcat 5.5) and I click over list_account link, I get below error:

18:57:03.793 [http-8080-Processor25] ERROR o.a.c.c.C.[.[.[/tutorial].[jsp] - El Servlet.service() para servlet jsp lanzó una excepción
java.lang.NoClassDefFoundError: javax/el/ValueExpression
	at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.6.0_35]
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2427) ~[na:1.6.0_35]
	at java.lang.Class.privateGetPublicMethods(Class.java:2547) ~[na:1.6.0_35]
	at java.lang.Class.getMethods(Class.java:1410) ~[na:1.6.0_35]
	at java.beans.Introspector.getPublicDeclaredMethods(Introspector.java:1284) ~[na:1.6.0_35]
	at java.beans.Introspector.getTargetMethodInfo(Introspector.java:1158) ~[na:1.6.0_35]
	at java.beans.Introspector.getBeanInfo(Introspector.java:408) ~[na:1.6.0_35]
	at java.beans.Introspector.getBeanInfo(Introspector.java:167) ~[na:1.6.0_35]
	at java.beans.Introspector.getBeanInfo(Introspector.java:230) ~[na:1.6.0_35]
	at java.beans.Introspector.<init>(Introspector.java:389) ~[na:1.6.0_35]
	at java.beans.Introspector.getBeanInfo(Introspector.java:167) ~[na:1.6.0_35]
	at java.beans.Introspector.getBeanInfo(Introspector.java:230) ~[na:1.6.0_35]
	at java.beans.Introspector.<init>(Introspector.java:389) ~[na:1.6.0_35]
	at java.beans.Introspector.getBeanInfo(Introspector.java:167) ~[na:1.6.0_35]
	at org.apache.jasper.compiler.Generator$TagHandlerInfo.<init>(Generator.java:3713) ~[jasper-compiler.jar:na]
	at org.apache.jasper.compiler.Generator$GenerateVisitor.getTagHandlerInfo(Generator.java:2120) ~[jasper-compiler.jar:na]
	at org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1599) ~[jasper-compiler.jar:na]
	...

At first glance, it seems like the solution is to include jar where is javax/el/ValueExpression, into gradle repository. If I am correct, how do I do that?

Note.- It is important this point because I am going to modify a project using Spring Security an one of the restrictions is to use Tomcat 5.0. I was not able to get thar versión that's why I used Tomcat 5.5

I kindly appreciate your valuable support for this matter.

Regards.