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Aspose words logging on tomcat

I'm using aspose.words (JAVA) in version 13.8.0
I'm not able to forward the log output to Tomcats (7) console. At least I think so:
com.aspose.words.Document word = new com.aspose.words.Document(content);
word.getMailMerge().setUseNonMergeFields(true);
org.w3c.dom.Document workObjectXml = createXml(root, "root", "MM.dd.yyyy");
word.getMailMerge().executeWithRegions(new XmlMailMergeDataSet(workObjectXml));
does not produce any log output with the following log4j.properties:
# Comment this line and uncomment the following to allow log writing to a local file
log4j.rootLogger=INFO, A
# log4j.rootLogger=INFO, A, local.file
log4j.appender.A=org.apache.log4j.ConsoleAppender
log4j.appender.A.layout=org.apache.log4j.PatternLayout
log4j.appender.A.layout.ConversionPattern=%d{ISO8601} %-5p %-85.85c - %m%n
## Project
log4j.logger.com.aspose.words=DEBUG
I found a similar issue for aspose.pdf here: http://www.aspose.com/community/forums/thread/495783/log4j-logging-package-issue-in-aspose.pdf.aspx
But according to the post, this was fixed in aspose.pdf earlier than the release date of my library so my assumption is, that the issue I'm facing is not the same but in a different library.

Seems like a log4j configuration issue to me.
Try adding the following line at any initial stage of your program and see if it works.
BasicConfigurator.configure();
I did not test it in a web/Tomcat app, but I have the same issue in a console application. The log messages are created in the log file, but not on the console output. It worked when I called the configure() method.

Log4J log does not create back up files

I have configured my application log in the generic JVM arguments of my Websphere application server as :
-Dlog4j.configuration=file:D:/app_logs/log4j/log4j.properties
The log4j.properties file looks like:
log4j.appender.app.layout=org.apache.log4j.PatternLayout
log4j.appender.app.layout.ConversionPattern=%d{ISO8601} %5p %c{1}:%L - %m%n
log4j.appender.app=org.apache.log4j.RollingFileAppender
log4j.appender.app.File=D:/app_logs/log4j/logs/app.log
log4j.appender.app.MaxFileSize=8000KB
log4j.appender.app.MaxBackupIndex=10
#root logger option
log4j.rootLogger=debug,app
# restrictions
log4j.logger.net.sf.hibernate=info
#log4j.logger.net.sf.hibernate.type=debug
#log4j.logger.net.sf.hibernate.ps.PreparedStatementCache=debug
log4j.logger.com.abc.wm.eu.app.interop=off
log4j.logger.com.abc.wm.eu.app.webservice.servlet.ADOServlet=off
#
log4j.logger.org.apache.axis=error
log4j.logger.org.apache.commons.httpclient=error
log4j.logger.httpclient.wire.header=error
log4j.logger.httpclient.wire.content=error
log4j.logger.org.htmlparser=error
Problem:
The log rolls over. But the back up logs are not created. The same configuration works fine for another application running on the same server.
I have no idea what is wrong here.
All suggestions and solutions are welcome.
Thanks

log4j.appender.FILE.Append=true
This might do the trick

How to log stdout output in Tomcat?

Is there a way to log all stdout output to the catalina.log file in Tomcat? (i.e. everything that gets printed to System.out.println())
The console window that opens when you run TOMCAT/bin/startup.bat displays output from stdout, but it's not saved to TOMCAT/logs/catalina.<date>.log.
My specific problem is that I have a console appender defined in log4j to output to the console. These log messages appear correctly in the Tomcat console window, but they are not written to catalina.log. I'm running Tomcat 5.5 on Windows. Thanks.
EDIT:
Here is my log4j.properties file. It is located at TOMCAT/webapps/app/WEB-INF/classes/log4j.properties:
log4j.rootCategory=DEBUG, console
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=[%d{ABSOLUTE} %-5p %c{1}]: %m%n

I've come across similar questions before, and haven't found a way to do this by logging System.out in Windows unless you are running Tomcat as a Windows service. This seems to work by default in Unix since startup.sh points to catalina.sh which logs stdout to the catalina.out file like below
org.apache.catalina.startup.Bootstrap "$#" start >> "$CATALINA_BASE"/logs/catalina.out 2>&1 &
In log4j, ConsoleAppender by itself does not append to a File, only to System.out
However, I've modified your log4j properties to add a FileAppender and this config works, but of course this logs into a separate log file.
New config
# Set root logger level to DEBUG.
log4j.rootLogger=DEBUG, console, myFile
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=[%d{ABSOLUTE} %-5p %c{1}]: %m%n
# myFile writes to file
log4j.appender.myFile=org.apache.log4j.RollingFileAppender
log4j.appender.myFile.File=logs/tomcatlog4j.log
log4j.appender.myFile.MaxFileSize=100KB
log4j.appender.myFile.layout=org.apache.log4j.PatternLayout
log4j.appender.myFile.layout.ConversionPattern==[%d{ABSOLUTE} %-5p %c{1}]: %m%n
Output
=[15:24:03,819 INFO A1]: In my.jsp
=[15:24:03,975 INFO A1]: Out of my.jsp
=[15:24:04,880 INFO A1]: In my.jsp
=[15:24:04,880 INFO A1]: Out of my.jsp
also see
How to log exceptions from a specific package deployed in tomcat
log select events into a separate file
https://serverfault.com/questions/201178/tomcat-5-5-how-to-redirect-the-logging-output-to-one-file-per-web-application

Did you checked, whether the log4j.properties file can be found from your application?
Maybe you can check, by setting a hardcoded file path like
-Dlog4j.configuration=file:///C:\Dev\log4j.properties
If the logs are written after these change, the relativ path to the log4j file is wrong.

If I look at the default logging config of tomcat 5.5 in logging.properties:
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].level = INFO
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].handlers = 2localhost.org.apache.juli.FileHandler
That looks to me as if stdout of web applications might be logged to files only for level INFO and above, regading that http://tomcat.apache.org/tomcat-5.5-doc/logging.html states that in tomcat JULI logging configuration loggers do not use parent's handlers when they are assigned their own handlers. Also the file should be prefixed localhost and not catalina. But then I do not understand how the output comes to your output window :/

Application is not logging log, how to debug log 4j starting or not

I have created a very simple application, where I am trying to use the Log4J, but my application is not logging any log.
Can anyone please tell me how can I debug the same as my log4j started or not?
I have kept the file in classes folder of WEB-INF/classes
Thanks
following is my log4j.properties
log4j.rootLogger=debug, stdout, ABC
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.ABC=org.apache.log4j.RollingFileAppender
log4j.appender.ABC.File=D://abc//dams_workflow_application.log
log4j.appender.ABC.MaxFileSize=3000KB
# Keep one backup file
log4j.appender.ABC.MaxBackupIndex=10
log4j.appender.ABC.layout=org.apache.log4j.PatternLayout
log4j.appender.ABC.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n
following is the sample line for using log 4j..
Logger log = Logger.getLogger("ABC");
log.info("my message");

If you're writing a web application, you can view the Log4J Default Initialization Under Tomcat. Even it states Tomcat, the same applies in other Containers/Web application servers.

Console will print this if log4j is not started :
log4j:WARN No log4j configuration information found.
log4j:WARN Changed non-configured level from DEBUG to ERROR.
log4j:WARN The log4j system is not properly configured!
You could have a look at Log4j - Looking for a good 'Getting started' tutorial or blog
to get started.
Regards,
Stéphane

Make sure the log4j jar is in the lib directory for your webapp or in the lib directory in tomcat.
Log4j doesn't seem to work properly for me unless i put the log4j properties file in the default package in the webapp's source directory within the project.
All of my log4j properties files typically look similar to the following
# Define a logger called "processLog" using the FileAppender implementation of the
# Log interface
log4j.appender.processLog=org.apache.log4j.DailyRollingFileAppender
log4j.appender.processLog.File.DateFormat='.'yyyy-ww
# Define the output location
log4j.appender.processLog.File=C:/logs/myapp.log
# Define what the output is going to look like for your log
log4j.appender.processLog.layout=org.apache.log4j.PatternLayout
log4j.appender.processLog.layout.ConversionPattern=%d{yyyy-MM-dd hh:mm a} %5p %c{1}: Line#%L - %m%n
# log4j.rootLogger specifies the default logging level and output location.
# The first parameter is the level (debug > info > warn > error > fatal).
log4j.rootLogger=INFO, processLog
That's how I do it anyway. There may be a better way but this one always works for me.

How do I log from inside my web application in Tomcat 6

How do I log from within my web application deployed on Tomcat 6? Where should I expect the logging output to go (internal tomcat log files, or will another logfile be generated)? I see a ton of documentation but am having a hard time finding a direct answer to the above questions. Where should I expect the logging to show up (currently it is log4j is not generating a log file and it is not showing up in my console). I am trying to follow http://www.laliluna.de/articles/log4j-tutorial.html .
### 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{ABSOLUTE} %5p %c{1}:%L - %m%n
### file appender
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.maxFileSize=100KB
log4j.appender.file.maxBackupIndex=5
log4j.appender.file.File=test.log
log4j.appender.file.threshold=info
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n
log4j.rootLogger=debug, stdout
In my application I define a log object:
private static org.apache.log4j.Logger log = Logger.getLogger(MyClass.class);
log.error("LOGGING!");
Thanks for the help.

2 things to try:
1: Change test.log to /tmp/test.log so you know exactly where the file is supossed to be.
2: Put your log4j.properties config file in your apache-tomcat-6.0.x/lib directory together with the log4j-1.2.15.jar file. And don't have any log4j files in your webapps/*/WEB-INF/lib
That's the way I am doing it, and its working for me. Here is a usefull snippet from my log4j.properties (Remember to do a mk /tmp/logs if you use this config)
log4j.rootLogger=debug, root
log4j.appender.root=org.apache.log4j.FileAppender
log4j.appender.root.layout = org.apache.log4j.PatternLayout
log4j.appender.root.layout.conversionPattern = %d [%t] %-5p %c - %m%n
log4j.appender.root.file = /tmp/logs/root.log
log4j.appender.root.append = true
log4j.category.mside = DEBUG,msideAppender
log4j.category.javashare = DEBUG,msideAppender
log4j.additivity.mside = false
log4j.additivity.mside.msideAppender = false
log4j.additivity.javashare = false
#Define msideAppender.
log4j.appender.msideAppender = org.apache.log4j.RollingFileAppender
log4j.appender.msideAppender.MaxFileSize=10MB
log4j.appender.msideAppender.MaxBackupIndex=7
log4j.appender.msideAppender.file = /tmp/logs/mside.log
log4j.appender.msideAppender.layout = org.apache.log4j.PatternLayout
log4j.appender.msideAppender.layout.conversionPattern = %d [%t] %-5p %c - %m%n
log4j.appender.msideAppender.append = true

IIRC Tomcat v4/v5 sends standard output to the catalina.out file, so any log4j output using a console appender would go to that file as well. Not sure if this still the case with newer versions of Tomcat, though.

Your log4j configuration will be picked up by log4j if you put it into the classpath of your web application, e.g. in WEB-INF/classes/. Make sure that your log4j.jar is in WEB-INF/lib.
The output of the ConsoleAppender that you defined, which is logging on stdout, will go to ${CATALINA_BASE}/logs/catalina.out, as any Tomcat stdout output.
As to the RollingFileAppender, you should define the correct path. If you want your web application's logs to appear in Tomcat's logs directory, change the file for this appender to:
log4j.appender.file.File=${catalina.base}/logs/test.log

BTW, use the system property -Dlog4j.debug system property. That should tell you where the heck log4j is sending its output.
Also, if your tomcat install is in a *nix system, or if you are running on Windows with cygwin installed, you could use the find command to detect what files get changed right after you send a HTTP request to Tomcat (which you know should produce a logging output)
cd <your tomcat install>
ls -ltr `find . -type f -ls` | tail -10
That should show you the last 10 files that were updated or changed. It won't work if there are files in your app with spaces in their file names, though.

I have tried following way and make sure it works well:
put your own log4j.properties place at a path;
then update your catalina.sh under tomcat, add below similar line:
JAVA_OPTS="-Dlog4j.configuration=file:${yourownlog4jpath}"