log4j:ERROR setFile(null,false) call failed

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Iam facing some strange error as below

log4j:ERROR setFile(null,false) call failed.
java.io.FileNotFoundException: \debug.log (Access is denied)




<appender name="fileAppender" class="org.apache.log4j.RollingFileAppender">
      <param name="append" value="false"/>
      <param name="file" value="${logging.folder}/debug.log"/>
      <layout class="org.apache.log4j.PatternLayout">
         <param name="ConversionPattern" value="%d{ABSOLUTE} %-5p [%c{1}] %m%n"/>

maven.xml (not complete)


when iam directly using <param name="file" value="D:/logs/debug.log"/> , its working fine, BUT when am using <param name="file" value="${logging.folder}/debug.log"/> iam getting above exception..

Iam pretty sure values from property file able to read, since one of my java file able to read values from this property file only.. then why can't this log4j.xml file able to read?

please suggest me what went wrong?

In addition to Chandra's answer, I experienced the same exception in Eclipse on Windows 7:

C:/myfile.log                     // access denied...

But it worked OK when I created a folder with permissions to my userid:

 C:/myLogs/myfile.log             // it wasn't necessary to create the file

I also noticed that the path must be specified with forward slashes.

ERROR: setFile(null,true) call failed, 3:18:10,528 ERROR [stderr] (Thread-125) log4j:ERROR setFile(null,true) call failed. This issue occurs when the log4j. xml file is copied from another environment and the PATH is incorrect. xml file and check the path set for the parameter FILE for the appender name="FILE". "log4j:ERROR setFile(null,true) call failed." When i try to run the application. The below code is the sample class file which is used for put properties into the the Properties file.

Use forward slash ('/') instead of back slash ('\') where ever you are defining this path ${logging.folder}. Thats what error i see up there:

you are using back slash here:

java.io.FileNotFoundException: \debug.log (Access is denied)

so your path should be something like: logging.folder = D:/logs/

log4j:ERROR setFile(null,true) call failed. (Other Build Tools forum at , "log4j:ERROR setFile(null,true) call failed." When i try to run the application. The below code is the sample class file which is used for put properties into the the� Dear Dr. Memon, I want to report the following bug reports that I created as outdated: http://sourceforge.net/tracker/?func=detail&aid=2974150&group_id=155202&atid

For logging I use properties file and I use the following config for this same problem. As I use tomcat server, I use ${catalina.base} to get the tomcat base directory. log4j.appender.FILE.File=${catalina.base}/logs/debug.log

For your xml config the syntex might be like the following

<param name="file" value="${catalina.base}/debug.log"/>

If you are using Tomcat then hopefully It will work.

FileNotFoundException: /logs/debug.log (No such file or directory , log4j:ERROR setFile(null,true) call failed. java.io.FileNotFoundException: /logs/ debug.log (No such file or directory). at java.io.FileOutputStream� log4j:ERROR setFile(null,true) call failed.java.io.FileNotFoundException:\gel\ms\ex\ms.log (The system cannot find the path specified) Below is my log4j config file:

This issue is nothing related to slashes people. This line of error:

java.io.FileNotFoundException: \debug.log (Access is denied)

is telling us that it is trying to create debug.log file in the root(\ represents root) and obviously it won't have access so access denied.

In my case, I solved this by adding VM arguments before starting the server. That's it.

Example : (In my case I'm using Wildfly, change the path to your server location)

"-Dlogging.folder=C:\Program Files\wildfly-14.0.1.Final\standalone\log"

log4j:ERROR setFile(null,true) call failed. Dear Tomcat team,thanks for your continuous support. please assist us to find the root cause of the below problem. during the start of tomcat server, the

Re: Error: "setFile(null,false) call failed" when using log4j rp0428 Sep 6, 2012 5:14 PM ( in response to 960214 ) > I came to this forum for solution. > And I gave you a solution. > Follow the industry standard and keep the logs separate. > As for > Not to debate whether my architecture is right or wrong > Same here - there is nothing to debate.

Re: log4j:ERROR setFile(null,true) call failed. Post by Lapo » Tue Jul 15, 2014 7:30 am You can still use SFSObject and SFSArray to send data to and from the server.

  • It really looks like the config.properties isn't getting read before the XML attribute is getting interpreted. I also note that your paths don't match, and you haven't specified the environment in which you're getting the error (is it a configuration where dev isn't enabled?).
  • @chrylis profile 'dev' is by-default enabled.. so can you tell me whats the solution for my issue pls? and when iam directly using <param name="file" value="D:/logs/debug.log"/> , its working fine for me..
  • user3128668 - did you find answer to the above?