java.util.logging

In the abstract JDK class Formatter, which is used to format debug logs, the formatMessage method is declared as synchronized. However, I haven't been able to determine why that is the case. Obviously, one can write overriding versions that are not thread safe, but I'm wondering why the default implementation is not thread safe. [T]he formatMessage method is declared as synchronized.However, I haven't been able to determine why that is the case. An early version of java.util.logging.Formatter tried to cache the result of resource bundle get string calls to avoid construction of java.util

I tried to go through the tutorial on the Java logging API: www.vogella.com/articles/Logging/article.html But the generated files are empty (tested in Netbeans, Eclipse as well as running the jar from cmd). The log messages are displayed in the console only. The following are the files used in the project. What might be the reason for such behavior? Project: de.vogella.logger MyHtmlFormatter.java package de.vogella.logger; import java.text.SimpleDateFormat; import java.util.Date; import java.util.logging.Formatter; import java.util.logging.Handler; import java.util.logging.Level; import java

We are using glassfish as our application server. We want to log messages separately. For example if the log from xxx.company.xxx.service package, the log file is named as service.log, and if the log from xxx.company.xxx.dao, the log file is named as dao.log. Right now, all the log message are printed to server.log file which is the glassfish server log file. I know glassfish is using java.util.logging API, how to configure the log.propeties file and how to use this logger API. Does glassfish have similar functionality like Apache Tomcat Juli logger? The FileHandler doesn't support generating

I'm using java.util.logging to log in my Java application. I'm also using javax.xml.ws.Endpoint to publish a SOAP-interface. Over the time I added more and more exceptions which all turn up at startup with a log-entry like this: Jan 24, 2011 12:29:27 PM com.sun.xml.internal.ws.model.RuntimeModeler getExceptionBeanClass INFO: Dynamically creating exception bean Class de.wi08e.myhome.frontend.jaxws.NotLoggedInBean I tried following filter to block them, but I'm not sure which class to get with getLogger : /* Filter ExceptionBeanClass logs */ Logger loggerInfo = Logger.getLogger("javax.xml.ws

Disclaimer: I apologize that this question is so long. I have added code as I have explored suggestions made here and done additional research since asking my original question. I am working on an open source project in Java and want to implement logging in my application to facilitate bug tracking and debugging when/if users report problems with the app. I am looking at the java.util.logging package from the standard Java API. I've already added some logging code when exceptions are caught. For example, I have Logger.getLogger(FindCardsPanel.class.getName()).log(Level.SEVERE, "Storage I/O

I'm working on an app that logs using the slf4j api: import org.slf4j.Logger; import org.slf4j.LoggerFactory; ... private static final Logger LOG = LoggerFactory.getLogger(FreemarkerEmailPreviewGenerator.class); ... LOG.error("Error generating email preview", e); (Code above posted to show classes and packages in use, but pretty standard stuff.) We use logback configured as follows: <?xml version="1.0" encoding="UTF-8"?> <configuration> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <encoder> <pattern>[%d{HH:mm:ss.SSS}] [%thread] [%-5level %logger{26} - %msg]%n </pattern>

In my GAE/J application, how would I configure the default logger to report errors via email? An SMTPHandler already exists, but cannot be used with GAE/J because of unsatisfied dependencies. Take a look at the source code of SMTPHandler and adapt it to GAE/J. The MailHandler included with JavaMail 1.5.3 and later have built in support for Google App Engine . Make sure you are using the most current version of JavaMail. For GAE/J you can download the logging-mailhandler.jar and include it in your project. <dependency> <groupId>com.sun.mail</groupId> <artifactId>logging-mailhandler</artifactId>