Weblogic and log4j

Question

I'm working with weblogic 12c and jdk 1.8. At the start of my application there is the BeEnvironment class that loads the internal log4j.properties in this mode:

    if (Thread.currentThread().getContextClassLoader().getResourceAsStream(CONFIGURATION + File.separator + mwaEnv + File.separator + Constants.LOG_4_j) != null) { 
        System.out.println("CARICO LE IMPOSTAZIONI DI LOG4J DA: " + CONFIGURATION + File.separator + mwaEnv + File.separator + Constants.LOG_4_j);
        PropertyConfigurator.configure(this.getClass().getClassLoader().getResource(CONFIGURATION + File.separator + mwaEnv + File.separator + Constants.LOG_4_j));
    }

The string "CONFIGURATION + File.separator + mwaEnv + File.separator + Constants.LOG_4_j" is the path where the file log4j.properties is located. This path is under the classpath (src/main/resources) of the project.

The problem is that weblogic does not find the file log4j.properties. The same code in webphere application server goes well. Maybe I have to configure some tag in weblogic.xml?

You should add -Dlog4j.debug to your setDomainEnv.cmd (i.e. add it to EXTRA_JAVA_PROPERTIES) and that should give you some extra information as to what is happening with LOG4J.. — mkane
The log4j.properties file is under this path (WEB-INF\classes) C:\repo_git\gestoreposizioni-ubi\GestorePosizioni-ear\target\GestorePosizioni.ear\GestorePosizioni.war\WEB-INF\classes\configuration\SVI\log4j.properties — user3310573
When I deploy the ear on weblogic testing environment the application find the log4j.properties file whereas in my weblogic local environment the application does not find the log4j.properties. I think that the installation of my weblogic local environment is not good. The problem does not depend on java code — user3310573
In my weblogic local environment I have the same problem, properties file not found, with the environment.properties files. But I succedded in resolving it with this java code: properties = (PropertyResourceBundle) ResourceBundle.getBundle (CONFIGURATION_PROPERTIES + mwaEnv + FILE_PROPERTIES); I also succedded in reading log4j.properties file putting it under the root of my project and using this java code: PropertyConfigurator.configure("conf/SVI/log4j.properties"); Thanks — user3310573

user3310573 user3310573 · Accepted Answer · 2018-10-10T08:38:49

I substitute File.Separator with "/" to get the right path of properties files. In this way all goes well. I think the problem is that weblogic is installed on Windows. File.separator is "\" in windows-like mode. Whereas Weblogic wants "/" to get properties files from classpath.

Weblogic and log4j

1 Answers