[jira] [Created] (LOG4J2-2690) Custom appenders no longer found with Java 11

["Tobias Diez (Jira)" <ji...@apache.org>]

Tobias Diez created LOG4J2-2690:
-----------------------------------

             Summary: Custom appenders no longer found with Java 11
                 Key: LOG4J2-2690
                 URL: https://issues.apache.org/jira/browse/LOG4J2-2690
             Project: Log4j 2
          Issue Type: Bug
          Components: Appenders
    Affects Versions: 2.12.1
         Environment: Java 11.2
{noformat}
compile group: 'org.slf4j', name: 'slf4j-api', version: '1.8.0-beta4'
compile 'org.apache.logging.log4j:log4j-slf4j18-impl:2.12.1'
compile 'org.apache.logging.log4j:log4j-jcl:2.12.1'
compile 'org.apache.logging.log4j:log4j-api:2.12.1'
compile 'org.apache.logging.log4j:log4j-core:2.12.1'{noformat}
            Reporter: Tobias Diez


After upgrading to Java 11, the custom appenders are no longer found. The following errors are shown when running the app:
{noformat}
2019-09-10 21:44:54,195 main ERROR Error processing element GuiAppender ([Appenders: null]): CLASS_NOT_FOUND
2019-09-10 21:44:54,240 main ERROR Appenders contains an invalid element or attribute "OurApplicationInsightsAppender"
2019-09-10 21:44:54,261 main ERROR Unable to locate appender "applicationInsightsAppender" for logger config "root"
2019-09-10 21:44:54,262 main ERROR Unable to locate appender "GuiLogger" for logger config "org.jabref"
2019-09-10 21:44:54,262 main ERROR Unable to locate appender "GuiLogger" for logger config "org.apache.pdfbox"{noformat}

The log4j config file can be found here:
https://github.com/JabRef/jabref/blob/master/src/main/resources/log4j2.xml
and the appender here:
https://github.com/JabRef/jabref/blob/master/src/main/java/org/jabref/gui/logging/GuiAppender.java

(They were working with Java 8, so it shouldn't be a configuration problem.)





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