I am always getting: ERROR StatusLogger Log4j2 could not find a logging
implementation. Please add log4j-core to the classpath. Using SimpleLogger to
log to the console...
Happens in eclipse oxygen. Also happens in this sample program.
Works fine in 2.9.1, but not in 2.10.0
Request a JIRA be created on this issue and corrected in either 2.10.1 or
2.11.0.
Thanks for the help!
Mark
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>echo Win7
Win7
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>echo java version
java version
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>java -version
java version "1.8.0_152"
Java(TM) SE Runtime Environment (build 1.8.0_152-b16) Java HotSpot(TM) 64-Bit
Server VM (build 25.152-b16, mixed mode)
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>echo log4j2.properties content
log4j2.properties content
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>type log4j2.properties
status = info
name = SamplePropertiesConfig
appenders = console
appender.console.type = Console
appender.console.name = STDOUT
appender.console.layout.type = PatternLayout appender.console.layout.pattern =
%d{yyyy-MM-dd HH:mm:ss} %-5p %c{3}:%L - %m%n
rootLogger.level = trace
rootLogger.appenderRefs = stdout
rootLogger.appenderRef.stdout.ref = STDOUT
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>echo Source Code:
Source Code:
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>type DoIt.java
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
public class DoIt {
public static void main(String[] args) {
Logger logger = LogManager.getLogger();
logger.trace("doit-main-trace");
logger.debug("doit-main-debug");
logger.info("doit-main-info");
logger.warn("doit-main-warn");
logger.error("doit-main-error");
logger.fatal("doit-main-fatal");
}
}
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>echo Compile code against 2.10 api
Compile code against 2.10 api
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>javac -classpath
c:\dev\mvnRepo\org\apache\logging\log4j\log4j-api\2.10.0\log4j-api-2.10.0.jar
DoIt.java
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>dir
Volume in drive C is Boot
Volume Serial Number is 8E96-A188
Directory of C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue
01/27/2018 11:03 AM <DIR> .
01/27/2018 11:03 AM <DIR> ..
01/27/2018 11:22 AM 725 DoIt.class
01/27/2018 10:49 AM 492 DoIt.java
01/27/2018 11:05 AM 369 log4j2.properties
01/27/2018 11:18 AM 917 script.bat
4 File(s) 2,503 bytes
2 Dir(s) 90,855,899,136 bytes free
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>echo run against 2.9.1 api and core
- works
run against 2.9.1 api and core - works
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>java -classpath
.;c:\dev\mvnRepo\org\apache\logging\log4j\log4j-core\2.9.1\log4j-core-2.9.1.jar;c:\dev\mvnRepo\org\apache\logging\log4j\log4j-api\2.9.1\log4j-api-2.9.1.jar
DoIt
2018-01-27 11:22:36 TRACE DoIt:7 - doit-main-trace
2018-01-27 11:22:36 DEBUG DoIt:8 - doit-main-debug
2018-01-27 11:22:36 INFO DoIt:9 - doit-main-info
2018-01-27 11:22:36 WARN DoIt:10 - doit-main-warn
2018-01-27 11:22:36 ERROR DoIt:11 - doit-main-error
2018-01-27 11:22:36 FATAL DoIt:12 - doit-main-fatal
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>echo jars exist
jars exist
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>dir
c:\dev\mvnRepo\org\apache\logging\log4j\log4j-core\2.10.0\*.jar
Volume in drive C is Boot
Volume Serial Number is 8E96-A188
Directory of c:\dev\mvnRepo\org\apache\logging\log4j\log4j-core\2.10.0
01/26/2018 10:16 PM 1,210,299 log4j-core-2.10.0-sources.jar
01/26/2018 09:03 PM 1,727,302 log4j-core-2.10.0.jar
2 File(s) 2,937,601 bytes
0 Dir(s) 90,855,899,136 bytes free
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>dir
c:\dev\mvnRepo\org\apache\logging\log4j\log4j-api\2.10.0\*.jar
Volume in drive C is Boot
Volume Serial Number is 8E96-A188
Directory of c:\dev\mvnRepo\org\apache\logging\log4j\log4j-api\2.10.0
01/26/2018 10:16 PM 238,630 log4j-api-2.10.0-sources.jar
01/26/2018 09:03 PM 255,485 log4j-api-2.10.0.jar
2 File(s) 494,115 bytes
0 Dir(s) 90,855,899,136 bytes free
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>echo run against 2.10 api and core -
fails
run against 2.10 api and core - fails
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>java -classpath
.;c:\dev\mvnRepo\org\apache\logging\log4j\log4j-core\2.10.0\log4j-core-2.10.0.jar;c:\dev\mvnRepo\org\apache\logging\log4j\log4j-api\2.10.0\log4j-api-2.10.0.jar
DoIt
ERROR StatusLogger Log4j2 could not find a logging implementation. Please add
log4j-core to the classpath. Using SimpleLogger to log to the console...
ERROR DoIt doit-main-error
FATAL DoIt doit-main-fatal
C:\dev\reproducelog4j2-2.10-vs-2.9.1-issue>
