I have developed small web application using JSF, and i add log4j to handle logging. Everything works perfectly until i implement add web service in my web application. After implement webservice using apache CXF I'm not getting any logs in my log file, but can get logs in eclipse console. I don't know why, it behave like that? My log file simply show messages like
i'm using jdk1.5, log4j 1.2.15 and CXF 2.6.11. Also i was tried some solutions from apache to use log4j instead of cxf default logger. please refer http://cxf.apache.org/docs/debugging-and-logging.html#DebuggingandLogging-LoggingMessages
But recommended solutions are not worked for me. How can i solve this issue?
It is possible that CXF introduces another log mechanism which means adds a yet another logging mechanism, or the imported versions of slf4j/log4j are not compatible.
I would recommend you to check the CXF pom file, and exclude all the log4j/slf4j jar files.
As #Arash said, remove log4j from classpath (if present). Also add the file META-INF/cxf/org.apache.cxf.Logger to the classpath with the following content:
org.apache.cxf.common.logging.Slf4jLogger
Reference: Using SLF4J Instead of java.util.logging
Problem was solved by removing slf4j-jdk14.jar from CXF. Actually Problem is "Class path contains multiple SLF4J bindings". So i removed CXF log4j binding. Now it's working perfectly. Thanks for all.
Related
I've followed the doc here : https://logging.apache.org/log4j/2.x/manual/migration.html
Also looked at https://logging.apache.org/log4j/2.x/manual/configuration.html#Properties
My existing log4j.properties only uses DailyRollingFileAppender, ConsoleAppender, both of which are under the 'Supported Components', so I shouldn't be forced to convert my log4j.properties file into log4j2.properties format. I'm not accessing methods and classes internal to the Log4j 1.x implementation, as suggested by the document.
For using the bridge, I previously was using both log4j1.compatibility and log4j.configuration, but the document suggests using 'any one' (tried using just one, doesn't work)
I can build my application successfully, however, my application no longer logs anything. What am I missing?
You may want to consider reload4j as a drop-in replacement for log4j 1.x. Initiated by Ceki Gülcü, the original author of Apache log4j 1.x, the reload4j project is a fork of Apache log4j version 1.2.17 with the goal of fixing pressing security issues.
The reload4j project offers a clear and easy migration path for the users who have an urgent need to fix vulnerabilities in log4j 1.2.17.
You don't need to update your properties file.
You can add a log4j2.component.properties file on the class path (in my case, in the same directory as my log4j.properties file) to set the log4j1.compatibility property, like this:
log4j1.compatibility=true
In our case, it only required setting the compatibility property and then it automatically picked up the log4j.properties file that was available on the class path.
Figured it out.
The answer lied in the Automatic Configuration section
I'm upgrading Log4j-1.2.17 to Log4j2-2.12.2 in my project.
To do that I'm using the log4j-1.2 bridge.
In old version I use property file to configure log4j.
After upgrade everything looks ok, no errors, no warnings. But logs don't appear in file pointed in properties file.
I realized that PropertyConfigurator.class exists in log4j-1.2-api.jar, but methods don't have implementation.
empty PropertyConfigurator.configure(Properties properties)
Can you explain me that?
Which configuration syntax is correct when I use log4j-1.2-api.jar? log4j or log4j2?
Prior to Log4j 2.13.0 log4j-1.2-api only provides compatibility for applications that used the log4j 1.x API for logging. The Log4j 2 configuration is still used as all logging calls are redirected to Log4j 2. So only the Log4j 2 configuration syntax would be valid.
Many of the old log4j 1.x internal classes are also present because many applications were using them in an attempt manually manipulate logging, much of which probably isn't necessary with Log4j 2.
In Log4j 2.13.0 the log4j-1.2-api was extended to provide experimental support for Log4j 1.x configuration files. You would have to compare your log4j 1 configurations with the documentation to determine if that support will work for you. However, the Log4j 1.x PropertyConfigurator still will be a no-op even with the compatibility support.
My project is using log4j2, and everything looks fine until running an application that uses a third party library that uses log4j 1.x. When our application starts, we get an annoying stack trace involving a ClassNotFoundException on org.apache.log4j.ConsoleAppender. I noticed that one of our dependencies has a log4j.properties inside its jar referencing org.apache.log4j.ConsoleAppender, so I'm guessing that's the reason for the stack trace. A couple other dependencies causing this error include most anything using JBoss logging classes, like embedded glassfish and the eclipse persistence packages.
I tried adding log4j-1.2.bridge api jar to the classpath and it had no effect.
It seems a little ridiculous to include both the jars for log4j2 and log4j1.x in our application classpath. Is there any other alternative or fix?
These links provided answers for me:
https://issues.apache.org/jira/browse/LOG4J2-172
https://issues.jboss.org/browse/JBLOGGING-95
It looks like we are using an out-dated version of JBoss logging that doesn't support log4j2. However, I'm still not sure what to do for the one dependency that includes a log4j.properties.
[edit] It turns out adding log4j-jcl-2.0 jar worked for that dependency.
Here's what I want to do:
- being able to have separated log4j.properties for each different deployment "war"
- being able to define in ant build, or web.xml, using system parameter on which log properties to use.
My project setup is Jetty with Jersey as REST API, without Spring.
I've done some research and it turns there are other Spring solutions to set in webl.xml but I'm not using spring.
I also know Jetty is using slf4j but if switching to slf4j, would I be able to do this more easily?
What would be a best way to solve this, so that in web.xml or ant build, log4j config can be customized defined?
Thanks a lot!
EDIT:
I figured that I can start another servlet with some init-param defined. Then on a separated HttpServlet implementation to set the PropertyConfigurator.configure([name of the log4j config]);
Is this adding one more servlet an ideally way of handling this?
Lots of different ways to handle this.
Since your mission is not different logging per Servlet, or per Webapp...I wouldn't solve the problem in the servlet or webapp locations but at the server level. To me, you want to log all this information to the correct place, not just all the information once the servlet has been deployed. To this end, I would enable the slf4j-api support in jetty and then look into the best way to handle that from the slf4j side of things. With that you can use whatever logging framework you want, slf4j-simple, log4j or logback..whatever you like.
Alternatively, if you really want to avoid the server side of logging, I supposed you could just use a log4j.properties file in the resources directory and then on jetty startup on the command line serve out a different resources directory. Figure out what options you want and startup with:
java -jar start.jar OPTIONS=Server,jmx,jsp,resources-[dev,qa,prod]
cheers
I get below error and the log files is not created. I know log4j.properties is not being picked correctly
log4j:WARN No appenders could be found for logger
log4j jar is in lib and classpath
log4j.properties is in src folder and gets loaded to classes folder on build
I tried many ways to fix this error like adding services folder with log4j implementation class to fix WAS logging conflict also tried sfl4j
Has anyone found a way to fix log4j issue with WAS7 or later ?
You can troubleshoot Log4J itself by specifying the log4j.debug=true system variable. Then you'll know exactly what's going on with Log4J, internally.
Does your log4j.properties file contain any logger definitions? perhaps you can paste the file here?
I had this same problem (WAS ignoring my META-INF/services/org.apache.commons.logging.LogFactory file).
The problem was solved when I downgraded commons-logging to 1.0.3, to match WAS version. Check this article for more info.
Consider using the Java Logging framework instead, which is built into the standard Java Runtime Environment and requires no additional installations or configuration. The relevant classes are in the java.util.logging package and there is an overview of the process for using them here (it works in a very similar way to log4j).