Log4J + Ehcache Config Errors

[primesoftw...@gmail.com]

I am using Ehcache 3.0 and would like to have it work with Log4J. I have added all the necessary jars and set the Log4J config but keep getting the following:

log4j:WARN No appenders could be found for logger (org.ehcache.core.internal.service.ServiceLocator).
log4j:WARN Please initialize the log4j system properly.

Here is my log4j config:

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn">
    <Appenders>
        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
        </Console>
    </Appenders>
    <Loggers>
        <Logger name="org.ehcache.core.internal.service.ServiceLocator" level="debug" additivity="false">
            <AppenderRef ref="Console"/>
        </Logger>
        <Root level="debug">
            <AppenderRef ref="Console"/>
        </Root>
    </Loggers>
</Configuration>

 

The logger is there and linked to the Console. Not sure why it can't find it.

[Louis Jacomet]

Without project setup information, hard to give any advice.

Which libraries did you add? And which versions?

Where is that log4j config file?

Are you using gradle? something else?

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[primesoftw...@gmail.com]

I added slf4j-log4j12-1.7.16, log4j-api-2.5, and log4j-core-2.5. I am using Gradle to build this and manage dependencies. In my Gradle config I have the following

run {
    jvmArgs = ["-Dlog4j.configurationFile=file:/home/me/Programming/RESTServer/resources/config/log4j2.xml"]
}

 

 

I did notice something interesting. It looks like Gradle downloaded multiple version of log4j. Perhaps one is a dependency. Here is what I added to get log4j:

compile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.5'
compile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.5'

But I also noticed log4j:log4j:1.2.17 in my External Libraries. Is it possible ehcache added the older one and since I have not configured that one it thinks there is no config file?

[Louis Jacomet]

Ehcache only has a dependency on org.slf4j:slf4j-api:1.7.7 as can be seen from http://repo1.maven.org/maven2/org/ehcache/ehcache/3.0.1/ehcache-3.0.1.pom

So this really looks like a logging setup issue for which I recommend http://www.slf4j.org/manual.html

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