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Why wasn't log message written my log file when running Junit tests?

I have a class Store which contains statements like "log.info(...)". I can see the log messages with the log file created when running the program. However, when I run JUnit tests, the log file won't be created, but I still want to see log messages. The logger is:
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
And my log4j properties:
log4j.rootLogger=DEBUG, STDOUT, file
log4j.appender.STDOUT=org.apache.log4j.ConsoleAppender
log4j.appender.STDOUT.layout=org.apache.log4j.PatternLayout
log4j.appender.STDOUT.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=mylogs.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{dd-MM-yyyy HH:mm:ss} %-5p %c{1}:%L - %m%n
The questions is, how to also create the log file and log messages when running my Junit tests?
Edit:
Part of the test log property:
log4j.rootLogger=ERROR, Console
log4j.logger.play=DEBUG
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d{ABSOLUTE} %-5p ~ %m%n
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=testlog.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{dd-MM-yyyy HH:mm:ss} %-5p %c{1}:%L - %m%n

According to that configuration, you'd probably expect to have a testlog.log file in the root of your project.
Nonetheless, the file appender is not referenced so the messages will only be logged using the Console appender. However, your rootLogger is set to ERROR level so messages below this level, such as DEBUG, INFO or WARN will be discarded.
You can either change your rootLogger configuration, from which all non-explicitly configured loggers inherit, just like in your other log4j.properties, or define a logger for your package, setting it to DEBUG (or whatever level you want) and use both the appends: log4j.logger.my.package.here=DEBUG, Console, file.
Further reading resources:
- log4j v1.2 into
- log4j 1.2 configuration
P.S.: Please note that sometimes Eclipse has issues with the file-system changes and does not automatically update the project files. If that happens. after running your test, try right clicking your project in the Navigator view, and selecting refresh, then scroll to the end where your pom is. Alternatively open the file explorer of your choice, go to your project root on the disk and you should see the testlog.log file.

log4j FileAppender not writing in Linux

In a standalone application I'm using log4j for logging and have configured it with the following properties file:
# Root logger option
log4j.rootLogger=WARN, file, stdout
log4j.logger.com.tr = INFO
# Direct log messages to a log file
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=log4j.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
# Direct log messages to stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
In Windows this works as expected, producing a log4j.log file in the current working directory. When I run the application in Linux, it reports no error but does not generate the log file. The logger outputs to console just fine.
I tried programatically changing the File property from a relative path to an absolute path and that changed nothing.
I've also verified that if I supply an invalid file name the tool reports an error saying the file cannot be generated. So I'm baffled as to why no error is being reported and no file is being generated.
I've searched my hard disk for the file to verify it's not being generated elsewhere, and it's not.
Any help here would be much appreciated.

Log4j is not logging into file

i have the following log4j configuration:
# Root logger option
log4j.rootLogger=file, stdout
# Direct log messages to a log file
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.Threshold=WARN
log4j.appender.file.File=logs/log.log
log4j.appender.file.MaxFileSize=10MB
log4j.appender.file.MaxBackupIndex=10
log4j.appender.file.Append=true
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
# Direct log messages to stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Threshold=INFO
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
Logging into stdout works fine but nothing is logged into my file.
There are definately outputs for the file but nothing happens.
Why isnt he logging into my file?

you can change your configuration file like this.
# Root logger option
log4j.rootLogger= ALL,file, stdout
And log4j.appender.stdout.Threshold=INFO change level like ALL its print all level logs TRACE to FATAL

One reason could be that the Threshold for the stdout appender(INFO) is lower than the file appender(WARN). So, if there are only INFO messages being logged, you will only see them in the stdout and not in the file.

It depends on how you are running it. Is this just a normal java program? For example, if you are trying to run it within a container (such as Karaf) then sometimes they can have special log destinations set.

Log4j in tomcat not showing logs

This is my log4j.properties.
# Root logger option
log4j.rootLogger=INFO, file, stdout
# Direct log messages to a log file
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=${catalina.home}\MyLog\PmcDemo.log
log4j.appender.file.MaxFileSize=1MB
log4j.appender.file.MaxBackupIndex=1
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
# Direct log messages to stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
I am using tomcat 6.0, in my application I have used Logger from log4j yet I don't see any output on server console or in the log file. My application is using struts2 as front end, Spring framework as middle layer and hibernate as the end layer. I don't see my application logging how can I enable it in tomcat 6?

You need to switch the backslashes for forward slashes:
${catalina.home}/MyLog/PmcDemo.log
or to escape them
${catalina.home}\\MyLog\\PmcDemo.log
If that doesn't help, let us know the structure of your project and where the log4j.properties file is stored.

Try this steps,
If running Tomcat 6.x:
1. If you have not already done so, modify the <<TOMCAT_HOME>>/conf/catalina.properties file so that the shared classloader mechanism work the same as Tomcat 5.x.
2. To do this, verify that the entry beginning with shared.loader= reads shared.loader=${catalina.base}/shared/classes,${catalina.base}/shared/lib/*.jar If running Tomcat 5.x or higher:
If running Tomcat 5.x or higher:
3. If it does not already exist, create a "shared/classes" directory under <<TOMCAT_HOME>>.
4. If it does not already exist, create a "shared/lib" directory under <<TOMCAT_HOME>>.
5. Copy log4j-###.jar into <<TOMCAT_HOME>>/shared/lib.
**Note:** Any specific version of log4j-###.jar should work. You can download the stable log4j version 1.2 installation from http://logging.apache.org/log4j/1.2/download.html
6. Copy a log4j.properties file into <<TOMCAT>>/shared/classes.
Example
To get a log file named "initiate.log" to show up in the <<TOMCAT_HOME>>/logs directory, an initial version of log4j.properties file is:
log4j.rootLogger=ERROR, R
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
# Pattern to output the caller's file name and line number.
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n
log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=${catalina.home}/logs/initiate.log
log4j.appender.R.MaxFileSize=1000KB
log4j.appender.R.MaxBackupIndex=5
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%d{ABSOLUTE} 5-5p %c{2} - %m %n
log4j.logger.org.springframework=ERROR
log4j.logger.org.springframework.web.servlet.mvc=ERROR
#set to DEBUG to see hibernate and connection-pool logging output
log4j.logger.org.hibernate=ERROR
log4j.logger.org.apache.commons.dbcp=ERROR
#set to DEBUG to see Initiate-specific logging output
log4j.logger.com.initiatesystems=DEBUG
#set to DEBUG to set Initiate-specific verbose logging output
log4j.logger.verbose=ERROR
Quoted from: http://pic.dhe.ibm.com/infocenter/initiate/v9r5/index.jsp?topic=%2Fcom.ibm.datatrust.doc%2Ftopics%2Ft_datatrust_configuring_log4j_logging_apachetomcat.html

Behaviour of log4j in case of multiple log4j.properties

First off, I apologize if this question has already been asked. I searched but couldn't find anything specific to my problem.
Here's the scenario -
I'm deploying an application, say, MyFirstWebApp in Tomcat 6.0.35.
Tomcat has a log4j.properties in it's common loader path which looks like -
log4j.rootLogger=INFO, LOGFILE
log4j.logger.com.test.java=DEBUG, TEST
log4j.additivity.com.test.java=false
# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=[%p] %m%n
# LOGFILE is set to be a File appender using a PatternLayout
log4j.appender.LOGFILE=org.apache.log4j.RollingFileAppender
log4j.appender.LOGFILE.File=/home/myuserid/tomcat.log
log4j.appender.LOGFILE.MaxFileSize=25MB
log4j.appender.LOGFILE.MaxBackupIndex=5
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d %p %t %c - %m%n
# LOGFILE is set to be a File appender using a PatternLayout
log4j.appender.TEST=org.apache.log4j.FileAppender
log4j.appender.TEST.File=/home/myuserid/test.log
log4j.appender.TEST.layout=org.apache.log4j.PatternLayout
log4j.appender.TEST.layout.ConversionPattern=%d %p %t %c - %m%n
Tomcat also has a log4j.jar file in it's lib/ directory.
Now, MyFirstWebApp has a log4j.properties inside it's WEB-INF/classes directory. MyFirstWebApp also has a log4j.jar in it's WEB-INF/lib directory.
MyFirstWebApp log4j.properties looks like this -
log4j.rootCategory=INFO,LOGFILE
# Set the enterprise logger priority to FATAL
log4j.logger.com.test=INFO
# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=[%p] %m%n
# LOGFILE is set to be a File appender using a PatternLayout.
log4j.appender.LOGFILE=org.apache.log4j.RollingFileAppender
log4j.appender.LOGFILE.MaxFileSize=10MB
log4j.appender.LOGFILE.MaxBackupIndex=99
log4j.appender.LOGFILE.File=/home/myuserid/mywebapp.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d [%t] %-5p %c %x - %m%n
When I start the server and deploy this application, I expected to find 3 log files - tomcat.log, test.log and mywebapp.log (which I did).
I also expected to find all logging from "com.test.java" package inside "test.log" but they were found in "mywebapp.log"
What am I doing wrong here? How can I log messages from "com.test.java" without modifying MyFirstWebApp?

The log4j.properties file is loaded by the classloader. All the classes in your webapp use the webapp's classloader, and thus only see the log4j.properties file that is under WEB-INF/classes. And thus, the logs from com.test.java that are generated by classes of your webapp use the configuration found in WEB-INF/classes/log4j.properties. So they're written to mywebapp.log.
If you want the logs from com.test.java to go to test.log, you'll have to either modify the webapp's log4j.properties (right solution), or to put those classes out of the webapp, directly in tomcat's classpath (but don't do this).