** Changed in: tomcat8 (Ubuntu)
Importance: Undecided => Medium
** Changed in: tomcat8 (Ubuntu)
Status: Fix Committed => Fix Released
** Changed in: tomcat8 (Ubuntu Xenial)
Importance: Undecided => Medium
** Changed in: tomcat8 (Ubuntu Yakkety)
Importance: Undecided => Medium
** No longer affects: tomcat6 (Ubuntu)
** No longer affects: tomcat6 (Ubuntu Yakkety)
** Changed in: tomcat6 (Ubuntu Xenial)
Importance: Undecided => Medium
** Changed in: tomcat7 (Ubuntu)
Importance: Undecided => Medium
** Changed in: tomcat7 (Ubuntu Xenial)
Importance: Undecided => Medium
** Changed in: tomcat7 (Ubuntu Yakkety)
Importance: Undecided => Medium
** Changed in: tomcat8 (Ubuntu Xenial)
Status: In Progress => Triaged
** Changed in: tomcat8 (Ubuntu Yakkety)
Status: In Progress => Triaged
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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1482893
Title:
common loader in catalina.properties is wrong
Status in tomcat7 package in Ubuntu:
New
Status in tomcat8 package in Ubuntu:
Fix Released
Status in tomcat6 source package in Xenial:
New
Status in tomcat7 source package in Xenial:
New
Status in tomcat8 source package in Xenial:
Triaged
Status in tomcat7 source package in Yakkety:
New
Status in tomcat8 source package in Yakkety:
Triaged
Status in tomcat7 package in Debian:
New
Status in tomcat8 package in Debian:
Fix Released
Bug description:
[Impact]
* The order of paths in common.loader does not follow the upstream
tomcat recommendations. This can lead to unexpected behavior.
[Test Case]
* The broken tomcat8 will have
common.loader=${catalina.base}/lib,${catalina.base}/lib/*.jar,${catalina.home}/lib,${catalina.home}/lib/*.jar,${catalina.home}/common/classes,${catalina.home}/common/*.jar
while the corrected version will have
common.loader="${catalina.base}/lib","${catalina.base}/lib/*.jar","${catalina.home}/lib","${catalina.home}/lib/*.jar","${catalina.base}/common/classes","${catalina.base}/common/*.jar","${catalina.home}/common/classes","${catalina.home}/common/*.jar"
in catalina.properties.
[Regression Potential]
* The primary source of regressions would be end-users relying on the
old path order and thus getting a different class loaded with the
'fixed' version. However, the Ubuntu order is unspecified as being
stable, and is contradictory to the public documentation.
Please fix the following line in catalina.properties in all tomcat
source packages.
WRONG:
common.loader=${catalina.base}/lib,${catalina.base}/lib/*.jar,${catalina.home}/lib,${catalina.home}/lib/*.jar,${catalina.home}/common/classes,${catalina.home}/common/*.jar
CORRECT:
common.loader=${catalina.base}/common/classes,${catalina.base}/common/*.jar,${catalina.home}/lib,${catalina.home}/lib/*.jar
Following problems with the wrong statement:
1. Odering is wrong: catalina.base should overrule catalina.home here (see
class loader howto below).
2. catalina.home is expanded normally to /usr/share/tomcat7, but there is no
common directory - it is below
/var/lib/tomcat7 (as expanded by catalina.base).
3. ${catalina.base}/lib,${catalina.base}/lib/*.jar are pointing to non
existing directories. I recommend to skip this part.
For reference see
https://tomcat.apache.org/tomcat-7.0-doc/class-loader-howto.html
> The locations searched by this class loader are defined by the
common.loader property in
> $CATALINA_BASE/conf/catalina.properties.
> The default setting will search the following locations in the order they
are listed:
>
> unpacked classes and resources in $CATALINA_BASE/lib
> JAR files in $CATALINA_BASE/lib
> unpacked classes and resources in $CATALINA_HOME/lib
> JAR files in $CATALINA_HOME/lib
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