https://issues.apache.org/bugzilla/show_bug.cgi?id=56236
Konstantin Kolinko <knst.koli...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
OS| |All
--- Comment #2 from Konstantin Kolinko <knst.koli...@gmail.com> ---
(In reply to kean12 from comment #0)
>
> INFO: Starting Servlet Engine: Apache Tomcat/7.0.52
>(...)
> SEVERE: Error deploying web application directory C:\server\tomcat
> 7\webapps\docs
>(...)
> Caused by: java.lang.NullPointerException
> at
> org.apache.tomcat.util.descriptor.DigesterFactory.idFor(DigesterFactory.java:
> 107)
> at
> org.apache.tomcat.util.descriptor.DigesterFactory.<clinit>(DigesterFactory.
> java:59)
>
This should have been fixed in the versions that you are using!
(Thanks to bugs 56045 and 56016 that have been reported for 7.0.50).
This behaviour of DigesterFactory is a result of our work on blocking
CVE-2013-4590. Essentially, DigesterFactory populates a table with resource
URLs of schema and DTD files bundled in Tomcat's servlet-api.jar.
This NPE happens when classloader cannot locate those files and returns 'null'
instead of a valid URL.
My guess is that you have a mess either in your CLASSPATH or in
CATALINA_BASE/lib, CATALINA_HOME/lib directories. Essentially that you have a
rogue Servlet API jar file that does not belong to Tomcat. That is that a
classloader has loaded a wrong "javax.servlet.ServletContext" class that does
not belong to our servlet-api.jar.
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