DFC not working with log4j.xml?

I am using DFC 5.3 with tomcat 5.5.25. When placing log4j.xml in {$catalina.home}/common/classes I get the following exception from DFC.

[12.12.2008/09:44:30,454][DEBUG][http-8080-Processor23] com.mycompany.dfcwebapp.servlet.DfcTestServlet: Reading objects from cabinet by DFC ...
log4j:ERROR Could not create an Appender. Reported error follows.
java.lang.ClassCastException: org.apache.log4j.ConsoleAppender
        at org.apache.log4j.xml.DOMConfigurator.parseAppender(DOMConfigurator.java:174)
        at org.apache.log4j.xml.DOMConfigurator.findAppenderByName(DOMConfigurator.java:149)
        at org.apache.log4j.xml.DOMConfigurator.findAppenderByReference(DOMConfigurator.java:162)
        at org.apache.log4j.xml.DOMConfigurator.parseChildrenOfLoggerElement(DOMConfigurator.java:424)
        at org.apache.log4j.xml.DOMConfigurator.parseRoot(DOMConfigurator.java:393)
        at org.apache.log4j.xml.DOMConfigurator.parse(DOMConfigurator.java:792)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:675)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:625)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:593)
        at org.apache.log4j.xml.XMLWatchdog.doOnChange(DOMConfigurator.java:824)
        at org.apache.log4j.helpers.FileWatchdog.checkAndConfigure(FileWatchdog.java:88)
        at org.apache.log4j.helpers.FileWatchdog.<init>(FileWatchdog.java:57)
        at org.apache.log4j.xml.XMLWatchdog.<init>(DOMConfigurator.java:816)
        at org.apache.log4j.xml.DOMConfigurator.configureAndWatch(DOMConfigurator.java:583)
        at com.documentum.fc.common.DfLogger.<clinit>(DfLogger.java:497)
        at com.documentum.fc.client.DfSessionManager.newManualSession(DfSessionManager.java:741)
        at com.documentum.fc.client.DfSessionManager.createSessionHelper(DfSessionManager.java:627)
        at com.documentum.fc.client.DfSessionManager.getSession(DfSessionManager.java:559)
        at com.documentum.fc.client.DfSessionManager.getSession(DfSessionManager.java:362)
        at com.mycompany.dfcwebapp.servlet.DfcTestServlet.processRequest(DfcTestServlet.java:54)
        at com.mycompany.dfcwebapp.servlet.DfcTestServlet.doGet(DfcTestServlet.java:99)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
        at java.lang.Thread.run(Thread.java:595)
log4j:ERROR Could not parse input source [org.xml.sax.InputSource@c00025].
java.lang.NullPointerException
        at java.util.Hashtable.put(Hashtable.java:396)
        at org.apache.log4j.xml.DOMConfigurator.findAppenderByName(DOMConfigurator.java:150)
        at org.apache.log4j.xml.DOMConfigurator.findAppenderByReference(DOMConfigurator.java:162)
        at org.apache.log4j.xml.DOMConfigurator.parseChildrenOfLoggerElement(DOMConfigurator.java:424)
        at org.apache.log4j.xml.DOMConfigurator.parseRoot(DOMConfigurator.java:393)
        at org.apache.log4j.xml.DOMConfigurator.parse(DOMConfigurator.java:792)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:675)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:625)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:593)
        at org.apache.log4j.xml.XMLWatchdog.doOnChange(DOMConfigurator.java:824)
        at org.apache.log4j.helpers.FileWatchdog.checkAndConfigure(FileWatchdog.java:88)
        at org.apache.log4j.helpers.FileWatchdog.<init>(FileWatchdog.java:57)
        at org.apache.log4j.xml.XMLWatchdog.<init>(DOMConfigurator.java:816)
        at org.apache.log4j.xml.DOMConfigurator.configureAndWatch(DOMConfigurator.java:583)
        at com.documentum.fc.common.DfLogger.<clinit>(DfLogger.java:497)
        at com.documentum.fc.client.DfSessionManager.newManualSession(DfSessionManager.java:741)
        at com.documentum.fc.client.DfSessionManager.createSessionHelper(DfSessionManager.java:627)
        at com.documentum.fc.client.DfSessionManager.getSession(DfSessionManager.java:559)
        at com.documentum.fc.client.DfSessionManager.getSession(DfSessionManager.java:362)
        at com.mycompany.dfcwebapp.servlet.DfcTestServlet.processRequest(DfcTestServlet.java:54)
        at com.mycompany.dfcwebapp.servlet.DfcTestServlet.doGet(DfcTestServlet.java:99)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
        at java.lang.Thread.run(Thread.java:595)
7656 [http-8080-Processor23] WARN com.documentum.fc.common.DfLogger - Failed to load log4j.xml. Using default log4j configuration
[12.12.2008/09:44:31,204][ INFO][http-8080-Processor23] com.mycompany.dfcwebapp.servlet.DfcTestServlet: Reading objects ok.

When I replace log4j.xml by log4j.properties, evereything works fine (see attachments). Is DFC not working with log4.xml? Log4j documentation says that both ways of logging configuration are possible.

Does someone have a working log4j.xml file?

Thanks in advance

dius

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Comments

Francois Dauberlieu

Even if the log4j doc says it supports it, that doesn't mean Documentum does as they use DfLogger instead of the 'regular' logger. This is also why when installing DFC, it creates a log4j.properties file, not an XML file. I suppose (my personal opinion here) that it is because DfLogger was written long before the log4j implementation supporting the XML configuration and they decided not to change it so when upgrading, no need for the customer to change the XML to reflect what they used to have in the .Properties file.

My 2 cents

Chris_Campbell

I got to thinking about this. I'm in the habit of just adjusting the log4j.properties file since .properties is used just about everywhere else in Documentum land. I went and looked to see what is the real story. Turns out that DfLogger does look up log4j.xml first and then if it doesn't find it, goes off and looks up log4j.properties.

The catch is that you first have to set log4j.configuration system property to point to the .xml file rather than the .configuration file. If this setting doesn't exist, DfLogger will default to using the .properties file. This is going to be true if you use DfLogger or regular Logger. To set the system property in windows you can type in your DOS shell:

set TOMCAT_OPTS=-Dlog4j.configuration=file:/c:/log4j.xml

That would tell log4j to use log4j.xml as the configuration file. See the Log4j manual over at apache.org for more details on how to set up the system property for your system be it Unix or Windows.

dius

Hi Chris,

thank you for your answer. I've tried your suggestion to set the log4j.configuration property, but I still get the same Exception. I am sure that my log4j.xml file is read by the DfLogger now, because I get SAXParseException when I make invalid changes in that file. Does DfLogger need something special in log4j.xml file (see attachement)?

Thanks

Dietmar

log4j:ERROR Could not create an Appender. Reported error follows.
java.lang.ClassCastException: org.apache.log4j.ConsoleAppender
        at org.apache.log4j.xml.DOMConfigurator.parseAppender(DOMConfigurator.java:174)
        at org.apache.log4j.xml.DOMConfigurator.findAppenderByName(DOMConfigurator.java:149)
        at org.apache.log4j.xml.DOMConfigurator.findAppenderByReference(DOMConfigurator.java:162)
        at org.apache.log4j.xml.DOMConfigurator.parseChildrenOfLoggerElement(DOMConfigurator.java:424)
        at org.apache.log4j.xml.DOMConfigurator.parseRoot(DOMConfigurator.java:393)
        at org.apache.log4j.xml.DOMConfigurator.parse(DOMConfigurator.java:792)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:675)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:625)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:593)
        at org.apache.log4j.xml.XMLWatchdog.doOnChange(DOMConfigurator.java:824)
        at org.apache.log4j.helpers.FileWatchdog.checkAndConfigure(FileWatchdog.java:88)
        at org.apache.log4j.helpers.FileWatchdog.<init>(FileWatchdog.java:57)
        at org.apache.log4j.xml.XMLWatchdog.<init>(DOMConfigurator.java:816)
        at org.apache.log4j.xml.DOMConfigurator.configureAndWatch(DOMConfigurator.java:583)
        at com.documentum.fc.common.DfLogger.<clinit>(DfLogger.java:497)
        at com.documentum.fc.client.DfSessionManager.newManualSession(DfSessionManager.java:741)
        at com.documentum.fc.client.DfSessionManager.createSessionHelper(DfSessionManager.java:627)
        at com.documentum.fc.client.DfSessionManager.getSession(DfSessionManager.java:559)
        at com.documentum.fc.client.DfSessionManager.getSession(DfSessionManager.java:362)
        at com.mycompany.dfcwebapp.servlet.DfcTestServlet.processRequest(DfcTestServlet.java:54)
        at com.mycompany.dfcwebapp.servlet.DfcTestServlet.doGet(DfcTestServlet.java:99)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
        at java.lang.Thread.run(Thread.java:595)
log4j:ERROR Could not parse input source [org.xml.sax.InputSource@15d616e].
java.lang.NullPointerException
        at java.util.Hashtable.put(Hashtable.java:396)
        at org.apache.log4j.xml.DOMConfigurator.findAppenderByName(DOMConfigurator.java:150)
        at org.apache.log4j.xml.DOMConfigurator.findAppenderByReference(DOMConfigurator.java:162)
        at org.apache.log4j.xml.DOMConfigurator.parseChildrenOfLoggerElement(DOMConfigurator.java:424)
        at org.apache.log4j.xml.DOMConfigurator.parseRoot(DOMConfigurator.java:393)
        at org.apache.log4j.xml.DOMConfigurator.parse(DOMConfigurator.java:792)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:675)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:625)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:593)
        at org.apache.log4j.xml.XMLWatchdog.doOnChange(DOMConfigurator.java:824)
        at org.apache.log4j.helpers.FileWatchdog.checkAndConfigure(FileWatchdog.java:88)
        at org.apache.log4j.helpers.FileWatchdog.<init>(FileWatchdog.java:57)
        at org.apache.log4j.xml.XMLWatchdog.<init>(DOMConfigurator.java:816)
        at org.apache.log4j.xml.DOMConfigurator.configureAndWatch(DOMConfigurator.java:583)
        at com.documentum.fc.common.DfLogger.<clinit>(DfLogger.java:497)
        at com.documentum.fc.client.DfSessionManager.newManualSession(DfSessionManager.java:741)
        at com.documentum.fc.client.DfSessionManager.createSessionHelper(DfSessionManager.java:627)
        at com.documentum.fc.client.DfSessionManager.getSession(DfSessionManager.java:559)
        at com.documentum.fc.client.DfSessionManager.getSession(DfSessionManager.java:362)
        at com.mycompany.dfcwebapp.servlet.DfcTestServlet.processRequest(DfcTestServlet.java:54)
        at com.mycompany.dfcwebapp.servlet.DfcTestServlet.doGet(DfcTestServlet.java:99)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
        at java.lang.Thread.run(Thread.java:595)
28670 [http-8080-Processor25] WARN com.documentum.fc.common.DfLogger - Failed to load file:/D:/Program/J2EE/jakarta-tomcat-5.5.25/common/classes/log4j.xml. Using default log4j configuration

Chris_Campbell

Good question. I'm learning right along with you. In your log4j.xml change the first appender line to:

That will cause the system to output your configuration as it's being read by the system. Supposedly it helps track down what's incorrect in your file. Beyond that, I'm not aware of any special requirements needed by Documentum. Double check to make sure that you have all the classes for those appenders available to the system. Could be that org.apache.log4j.DailyRollingFileAppender or something similar is somehow missing on the classpath.

dius

Hi Chris

When I enable log4j debug option I get the following additional info. Maybe there is a classloader problem, because I am using log4j for webapp specific logging (as described in tomcat documentation). In this scenario there is one log4j.jar in <tomcat>/common/lib and the corresponding log4j.xml in <tomcat>/common/classes. In each webapp there is a separate log4j.jar in WEB-INF/lib and the corresponding log4j.xml in WEB-INF/classes directory. All used log4j.jar files are identical. I also checked, that all needed classes are on the classpath.

What I can't understand, is that the excpetions disappear, if I replace the log4j.xml at <tomcat>/common/classes by a log4j.properties file. Any Idea?

Thanks Dietmar

Using CATALINA_BASE:   \Program\J2EE\jakarta-tomcat-5.5.25
Using CATALINA_HOME:   \Program\J2EE\jakarta-tomcat-5.5.25
Using CATALINA_TMPDIR: \Program\J2EE\jakarta-tomcat-5.5.25\temp
Using JRE_HOME:        C:\Program Files\Java\jdk1.5.0_09
log4j: Threshold ="null".
log4j: Level value for root is [info].
log4j: root level set to INFO
log4j: Class name: [org.apache.log4j.ConsoleAppender]
log4j: Setting property [threshold] to [ERROR].
log4j: Parsing layout of class: "org.apache.log4j.PatternLayout"
log4j: Setting property [conversionPattern] to [[%d{dd.MM.yyyy/HH:mm:ss,SSS}][%5p][%t] %c: %m%n].
log4j: Adding appender named [Console] to category [root].
log4j: Class name: [org.apache.log4j.DailyRollingFileAppender]
log4j: Setting property [datePattern] to ['.'yyyy-MM-dd].
log4j: Setting property [file] to [D:\Program\J2EE\jakarta-tomcat-5.5.25/logs/a4dcommon.log].
log4j: Setting property [append] to [true].
log4j: Parsing layout of class: "org.apache.log4j.PatternLayout"
log4j: Setting property [conversionPattern] to [[%d{dd.MM.yyyy/HH:mm:ss,SSS}][%5p][%t] %c: %m%n].
log4j: setFile called: \Program\J2EE\jakarta-tomcat-5.5.25/logs/a4dcommon.log, true
log4j: setFile ended
log4j: Appender [FileDaily] to be rolled at midnight.
log4j: Adding appender named [FileDaily] to category [root].
log4j: \Program\J2EE\jakarta-tomcat-5.5.25/logs/a4dcommon.log -> \Program\J2EE\jakarta-tomcat-5.5.25/logs/a4dcommon.log.2009-01-07
log4j: setFile called: \Program\J2EE\jakarta-tomcat-5.5.25/logs/a4dcommon.log, false
log4j: setFile ended
log4j: Threshold ="null".
log4j: Retreiving an instance of org.apache.log4j.Logger.
log4j: Setting [com.mycompany.dfcwebapp.servlet] additivity to [true].
log4j: Level value for com.mycompany.dfcwebapp.servlet is [debug].
log4j: com.mycompany.dfcwebapp.servlet level set to DEBUG
log4j: Level value for root is [info].
log4j: root level set to INFO
log4j: Class name: [org.apache.log4j.ConsoleAppender]
log4j: Setting property [target] to [System.out].
log4j: Parsing layout of class: "org.apache.log4j.PatternLayout"
log4j: Setting property [conversionPattern] to [[%d{dd.MM.yyyy/HH:mm:ss,SSS}][%5p][%t] %c: %m%n].
log4j: Adding appender named [Console] to category [root].
log4j: Class name: [org.apache.log4j.DailyRollingFileAppender]
log4j: Setting property [datePattern] to ['.'yyyy-MM-dd].
log4j: Setting property [file] to [D:\Program\J2EE\jakarta-tomcat-5.5.25/logs/dfctest.log].
log4j: Setting property [append] to [true].
log4j: Parsing layout of class: "org.apache.log4j.PatternLayout"
log4j: Setting property [conversionPattern] to [[%d{dd.MM.yyyy/HH:mm:ss,SSS}][%5p][%t] %c: %m%n].
log4j: setFile called: \Program\J2EE\jakarta-tomcat-5.5.25/logs/dfctest.log, true
log4j: setFile ended
log4j: Appender [FileDaily] to be rolled at midnight.
log4j: Adding appender named [FileDaily] to category [root].
[08.01.2009/09:28:27,826][ INFO][http-8080-Processor23] com.mycompany.dfcwebapp.servlet.DfcTestServlet: Reading objects from cabinet by DFC ...
log4j: \Program\J2EE\jakarta-tomcat-5.5.25/logs/dfctest.log -> \Program\J2EE\jakarta-tomcat-5.5.25/logs/dfctest.log.2009-01-07
log4j: setFile called: \Program\J2EE\jakarta-tomcat-5.5.25/logs/dfctest.log, false
log4j: setFile ended
[08.01.2009/09:28:27,920][DEBUG][http-8080-Processor23] com.mycompany.dfcwebapp.servlet.DfcTestServlet: Reading objects from cabinet by DFC ...
log4j: System property is :null
log4j: Standard DocumentBuilderFactory search succeded.
log4j: DocumentBuilderFactory is: com.documentum.xerces_2_6_2.xerces.jaxp.DocumentBuilderFactoryImpl
log4j: debug attribute= "true".
log4j: Threshold ="null".
log4j: Level value for root is [info].
log4j: root level set to INFO
log4j: Class name: [org.apache.log4j.ConsoleAppender]
log4j:ERROR Could not create an Appender. Reported error follows.
java.lang.ClassCastException: org.apache.log4j.ConsoleAppender
        at org.apache.log4j.xml.DOMConfigurator.parseAppender(DOMConfigurator.java:174)
        at org.apache.log4j.xml.DOMConfigurator.findAppenderByName(DOMConfigurator.java:149)
        at org.apache.log4j.xml.DOMConfigurator.findAppenderByReference(DOMConfigurator.java:162)
        at org.apache.log4j.xml.DOMConfigurator.parseChildrenOfLoggerElement(DOMConfigurator.java:424)
        at org.apache.log4j.xml.DOMConfigurator.parseRoot(DOMConfigurator.java:393)
        at org.apache.log4j.xml.DOMConfigurator.parse(DOMConfigurator.java:792)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:675)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:625)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:593)
        at org.apache.log4j.xml.XMLWatchdog.doOnChange(DOMConfigurator.java:824)
        at org.apache.log4j.helpers.FileWatchdog.checkAndConfigure(FileWatchdog.java:88)
        at org.apache.log4j.helpers.FileWatchdog.<init>(FileWatchdog.java:57)
        at org.apache.log4j.xml.XMLWatchdog.<init>(DOMConfigurator.java:816)
        at org.apache.log4j.xml.DOMConfigurator.configureAndWatch(DOMConfigurator.java:583)
        at com.documentum.fc.common.DfLogger.<clinit>(DfLogger.java:497)
        at com.documentum.fc.client.DfSessionManager.newManualSession(DfSessionManager.java:741)
        at com.documentum.fc.client.DfSessionManager.createSessionHelper(DfSessionManager.java:627)
        at com.documentum.fc.client.DfSessionManager.getSession(DfSessionManager.java:559)
        at com.documentum.fc.client.DfSessionManager.getSession(DfSessionManager.java:362)
        at com.mycompany.dfcwebapp.servlet.DfcTestServlet.processRequest(DfcTestServlet.java:54)
        at com.mycompany.dfcwebapp.servlet.DfcTestServlet.doGet(DfcTestServlet.java:99)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:691)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:469)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:403)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
        at org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:686)
        at org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:656)
        at org.apache.jsp.index_jsp._jspService(index_jsp.java:54)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
        at java.lang.Thread.run(Thread.java:595)
log4j:ERROR Could not parse input source [org.xml.sax.InputSource@1afb0c7].
java.lang.NullPointerException
        at java.util.Hashtable.put(Hashtable.java:396)
        at org.apache.log4j.xml.DOMConfigurator.findAppenderByName(DOMConfigurator.java:150)
        at org.apache.log4j.xml.DOMConfigurator.findAppenderByReference(DOMConfigurator.java:162)
        at org.apache.log4j.xml.DOMConfigurator.parseChildrenOfLoggerElement(DOMConfigurator.java:424)
        at org.apache.log4j.xml.DOMConfigurator.parseRoot(DOMConfigurator.java:393)
        at org.apache.log4j.xml.DOMConfigurator.parse(DOMConfigurator.java:792)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:675)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:625)
        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:593)
        at org.apache.log4j.xml.XMLWatchdog.doOnChange(DOMConfigurator.java:824)
        at org.apache.log4j.helpers.FileWatchdog.checkAndConfigure(FileWatchdog.java:88)
        at org.apache.log4j.helpers.FileWatchdog.<init>(FileWatchdog.java:57)
        at org.apache.log4j.xml.XMLWatchdog.<init>(DOMConfigurator.java:816)
        at org.apache.log4j.xml.DOMConfigurator.configureAndWatch(DOMConfigurator.java:583)
        at com.documentum.fc.common.DfLogger.<clinit>(DfLogger.java:497)
        at com.documentum.fc.client.DfSessionManager.newManualSession(DfSessionManager.java:741)
        at com.documentum.fc.client.DfSessionManager.createSessionHelper(DfSessionManager.java:627)
        at com.documentum.fc.client.DfSessionManager.getSession(DfSessionManager.java:559)
        at com.documentum.fc.client.DfSessionManager.getSession(DfSessionManager.java:362)
        at com.mycompany.dfcwebapp.servlet.DfcTestServlet.processRequest(DfcTestServlet.java:54)
        at com.mycompany.dfcwebapp.servlet.DfcTestServlet.doGet(DfcTestServlet.java:99)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:691)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:469)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:403)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
        at org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:686)
        at org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:656)
        at org.apache.jsp.index_jsp._jspService(index_jsp.java:54)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
        at java.lang.Thread.run(Thread.java:595)
log4j: setFile called: log4j.log, true
log4j: setFile ended
log4j: setFile called: trace.log, true
log4j: setFile ended
32035 [http-8080-Processor23] WARN com.documentum.fc.common.DfLogger - Failed to load log4j.xml. Using default log4j configuration