https://issues.apache.org/bugzilla/show_bug.cgi?id=55052
Bug ID: 55052
Summary: [JULI] Make ClassLoaderLogManager.getProperty() to try
unprefixed property if prefixed one does not exist
Product: Tomcat 7
Version: 7.0.40
Hardware: PC
OS: Windows XP
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: knst.koli...@gmail.com
The following issue was reported by "Edson" via comments system at
http://tomcat.apache.org/tomcat-7.0-doc/logging.html
[quote]
I would like to have a section explaining how to use SimpleFormatter.format,
because I can't make log behave as expected when using JULI. Seems that Tomcat
always ignore my attemps - unless I set in catalina.sh the system property:
-Djava.util.logging.SimpleFormatter.format="[%1$tY-%1$tm-%1$td
%1$tH:%1$tM:%1$tS.%1$tL] %4$s: %5$s %6$s %n" Would this be clarified in
documentation?
[/quote]
I am confirming this behaviour with with the current Tomcat 7.0.x (7.0.40) and
JDK 7u21.
Actual:
=======
If add the following line to logging.properties logging output does not change,
as reported in the comment:
[[[
java.util.logging.SimpleFormatter.format=[%1$tY-%1$tm-%1$td
%1$tH:%1$tM:%1$tS.%1$tL] %4$s: %5$s %6$s %n
]]]
But, if I add the following line, the output changes for all handlers. (At
least for the console one, catalina.DATE.log and localhost.DATE.log files.
Other log files are empty by default).
[[[
1catalina.java.util.logging.SimpleFormatter.format=[%1$tY-%1$tm-%1$td
%1$tH:%1$tM:%1$tS.%1$tL] %4$s: %5$s %6$s %n
]]]
Problem:
========
Oracle's SimpleFormatter.format is a static field, an thus is initialized only
once. While it is good that prefixed "1catalina.*" property works, this
specific formatter cannot be configured per-handler. (One is free to implement
their own formatter that does not use a static field there, or file an
enhancement request to Oracle or OpenJDK).
The code in question is ClassLoaderLogManager.getProperty(String) which does
[[[
if (prefix != null) {
name = prefix + name;
}
]]]
Thus is a prefix is active it tries only prefixed value of a property and never
tries an unprefixed one.
Expected:
=========
With SimpleFormatter it would be more sense to configure it using an unprefixed
property, regardless of which Handler is initialized first.
Workaround
===========
Change the values of "handlers", ".handlers" properties so that an unprefixed
handler is listed first.
In the default configuration that will be ConsoleHandler:
[[[
handlers = java.util.logging.ConsoleHandler,
1catalina.org.apache.juli.FileHandler, 2localhost.org.apache.juli.FileHandler,
3manager.org.apache.juli.FileHandler, 4host-manager.org.apache.juli.FileHandler
.handlers = java.util.logging.ConsoleHandler,
1catalina.org.apache.juli.FileHandler
]]]
Alternatively, you can remove a prefix from one of other handlers.
If you do so, and if that handler uses a SimpleFormatter, then the unprefixed
configuration property will work:
[[[
java.util.logging.SimpleFormatter.format=[%1$tY-%1$tm-%1$td
%1$tH:%1$tM:%1$tS.%1$tL] %4$s: %5$s %6$s %n
]]]
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