log4j

Single Log4j between Tomcat6 webapps

Hi, All! Is there a correct way to use Log4j logger with Common ClassLoader, not with Web-App based ClassLoader, i.e. use only one log4j.jar for all deployed web-apps? When i'm drop a log4j.jar in commons lib directory, log4j get a first loj4j.properties for any application and use only it. All other loj4j.properties (of other applicatio...

log4j basic configuration

Hi, I used log4j to log some steps in my application. To be quick and dirty, I used: org.apache.log4j.BasicConfigurator.configure(); This output my logs in the Eclipse console. I want to know if and how to set the level threshold higher than DEBUG? In other word, I do not want to display DEBUG level message, just ERR, WARN, INFO. T...

Injecting Log4J loggers with Spring

Hi, I have a spring 2.5 webapp with the following web.xml <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4"> <display-name>Spring ...

Logback - C3P0 and HSQLDB

I'm trying to get LogBack to use a HSQLDB with C3P0. I'm stuck with this configuration at the moment given my current environment. I have a large investment with Log4J code and will also need to use the SLF4J Log4J Adapter. When I try a simple logging program it's getting stuck in the configuration of the logger. Here is my logback.xml:...

commons-logging and log4j properties file

I am trying to use log4j via commons-logging and having problems if the log4j properties file is not called log4.properties. I get following error: log4j:WARN No appenders could be found for logger (LogMePlease). log4j:WARN Please initialize the log4j system properly. My code is very simple: import org.apache.commons.logging.Log; impor...

log4j SyslogAppender does not send logs to syslog

A web application running in Websphere is using log4j SysLogAppender to log messages to a syslog daemon located in the same machine. The default setting of the syslog daemon says LOG_FROM_REMOTE=NO. Does this mean that the web application which is located in the same machine as the syslog daemon cannot accept the messages? ...

Does JMSAppender support passing MDC?

I am currently using Log4j for logging messages in my application. I am setting a few properties in MDC and currently using FileAppender with my own layout (that extends XmlLayout). Everything seems to be working fine. I want to switch to JMSAppender. When I do this, I see that the JMSAppender puts an ObjectMessage of type 'LoggingEven...

What access level should loggers be set to?

I'm using SLF4J with Log4J underneath. What access levels should I be setting my loggers to? static final Logger logger = LoggerFactory.getLogger(ClassName.class); ...

Log4j SMTPAppender

Hi everyone, I have some problems trying to play with SMTPAppender. Here is my property file concerning the SMTPAppender : #Email config log4j.appender.mail=org.apache.log4j.net.SMTPAppender #defines how often emails are send log4j.appender.mail.BufferSize=1 log4j.appender.mail.SMTPHost=smtp.me.com log4j.appender.mail.SMTPUsername=use...

log4j and Commons Logging co-existing

In my application I'm using log4j and some 3rd party jars. One of those 3rd party jars is using Commons Logging. Now whenever I use classes from that 3rd party jar, somehow the log message is handled by two separate appenders. For example: in my log4j.properties I have specified: log4j.logger.myClass=DEBUG, serverFile, defaultSTDOUT,...

Log4j versus JCL

I'm looking for more current recommendations on the JCL. I need to choose between using the JCL or just using straight Log4j. I can see the benefits of JCL, but articles such as http://www.qos.ch/logging/thinkAgain.jsp leave me a little unsettled. However, these articles are a bit old and a search of JCL bug fixes seems to indicate so...

Is there a log4j appender that connects with TestNG?

I use log4j and would like log messages that normally end up in my logging facility to appear in the test reports created by TestNG during my unit tests. I think that would mean a log4j Appender which outputs to a TestNG Listener and an appropriate log4j config in the src/test/resources directory of my Maven project. Is that correct? I...

log4j:WARN Please initialize the log4j system properly.

How to resolve these following errors... Am I missing some jar file??? log4j:WARN No appenders could be found for logger (smslib). log4j:WARN Please initialize the log4j system properly. org.smslib.GatewayException: Comm library exception: java.lang.RuntimeException: javax.comm.PortInUseException: Port currently owned by Unkn...

what is the right way to use log4j within jsp pages

I mean, I want the logger name to reflect the source.jsp file, no matter if it is included in another file or compiled to a class or whatever. ...

help with log4j.xml

I have a dilemma configuring my log4j.xml (attached below) for the Quartz web-app. It is spitting out log messages to stdout (which my Tomcat instance then logs) for INFO reported by Quartz's LoggingJobHistory plugin. It is using the "stdout" appender defined below; I can tell this because I put the "ZZZ" there and it makes its way int...

java web: how to redirect stacktrace of uncaught exception to a log file?

I want to redirect only stacktrace of uncaught exception from console to log file. The rest of the things should appear on console as usual. ...

How to write to log files in java?

I have made a java application and wants to generate log files so whenever my client would encounter some problem, he can deliver me those log files so that I can correct my code accordingly. Kindly provide me a small sample program that writes a statement to a log file. Kindly mention the .class files you are using with their full imp...

Tomcat App says "Unable to configure the logging system. No log.properties was found."

I have an embedded tomcat app and whenever I start it up I see this error printed to the console twice: Unable to configure the logging system. No log.properties was found. It seems stupid, but I've done some googling and searched stackoverflow and can't seem to find someone experiencing this problem. My main class Looks roughly lik...

Web service logging not outputting, but not failing

I'm having trouble finding/getting any logging output from a web service. I have a web service running through axis2 in a Tomcat6 container, the .aar file contains this structure: root/ log4j.properties lib/ slf4j-api.jar slf4j-log4j12.jar log4j-1.2.jar com/ all of my classes META-INF/ ...

What is the shortest way to get log4j initialized in your main method?

I want everything to log to the console and don't want to have to deal with creating log4j.xml files, etc. I am prototyping some libraries and want to see their full log output. I would like to keep it as pure as possible and not have to introduce unnecessary dependencies like Spring, etc. ...