Validation Missing DTD --> NoClassDefFoundError
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Key: WW-2530
URL: https://issues.apache.org/struts/browse/WW-2530
Project: Struts 2
Issue Type: Bug
Components: Documentation
Affects Versions: 2.0.11
Reporter: Dan Peder Eriksen
If:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE validators PUBLIC
"-//OpenSymphony Group//XWork Validator Config 1.0//EN"
"http://www.opensymphony.com/xwork/xwork-validator-config-1.0.dtd";>
is missing from validators.xml the following error appears:
java.lang.NoClassDefFoundError: Could not initialize class
com.opensymphony.xwork2.validator.ValidatorFactory
http://struts.apache.org/2.x/docs/validation.html does not include the DTD for
validation.xml. Hence it is easy for those who are starting out with struts 2
to omit the DTD, as I did.
What I would like to see is a better error message. I first thought that it was
a classloading problem when it really is a XML problem.
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