Mail threads: http://tomcat.markmail.org/thread/4gblbbzxltq5jpzw http://tomcat.markmail.org/thread/ydrqotnjkmdl6err http://tomcat.markmail.org/thread/sn5gkulktf7tteon This has already been fixed in Tomcat 7 by r1570163 and will be in 7.0.53. Note that starting with 7.0.53 "validateXml" and "validateTld" are two distinct options. As of now "validateXml" option is removed from Tomcat 8 since 8.0.3 onwards. Some pending cleanup and discussion on whether to reimplement in Tomcat 8 is tracked as bug 56199. If you are using validateXml="false", my recommendation is to just remove that attribute from your build files. (It does not serve anything, as "false" is the default value for this attribute). A backport of r1570163 has been proposed for 6.0
This has been fixed in 6.0.x and will be included 6.0.40.