** Description changed:
+ [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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https://bugs.launchpad.net/bugs/1482893
Title:
common loader in catalina.properties is wrong
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