https://bz.apache.org/bugzilla/show_bug.cgi?id=61065
Bug ID: 61065
Summary: ImportHandler is using the wrong key to cache resolved
classes
Product: Tomcat 8
Version: 8.0.17
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P2
Component: EL
Assignee: dev@tomcat.apache.org
Reporter: jag...@arima.eu
Target Milestone: ----
The method resolveClass from ImportHandler class uses a Map to cache the
classes it resolves using their simple name as key.
Class<?> result = clazzes.get(name);
It has two methods to resolve a class.
If we use the package name to import our class (my.package.*), it stores it in
the cache using the simple name (correct):
clazzes.put(name, result);
//
http://svn.apache.org/viewvc/tomcat/tc8.0.x/tags/TOMCAT_8_0_16/java/javax/el/ImportHandler.java?revision=1680308&view=markup#l180
But when we import the class in the jsp (my.package.Class), it stores it using
its full class name (incorrect):
clazzes.put(className, clazz);
//
http://svn.apache.org/viewvc/tomcat/tc8.0.x/tags/TOMCAT_8_0_16/java/javax/el/ImportHandler.java?revision=1680308&view=markup#l160
Classes resolved like this are always a miss in the cache.
So, when importing packages (<%@ page import="my.package.*" %>) the cache will
work as expected.
But if we import the class (<%@ page import="my.package.Class" %>) we will
always get a miss on the cache.
You can find this problem in versions 8.0.16 and up.
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