Issue in Integrating jmx_prometheus_javaagent with Jboss

[hemnath83]

We are running on Jboss EAP 7.2.0 and Java 1.8.
When i tried to integrate jmx_prometheus_javaagent with Jboss facing in loading class file of logger.

Could not load Logmanager "org.jboss.logmanager.LogManager"
java.lang.ClassNotFoundException: org.jboss.logmanager.LogManager
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)

However when I comment / remove jmx_prometheus_javaagent-0.17.1.jar then jboss is starting without issue and i checked the logs the class of logmanger is getting loaded properly without jmx agent config.

"JAVA_OPTS=%JAVA_OPTS% -Djava.util.logging.manager=org.jboss.logmanager.LogManager"
"JAVA_OPTS=%JAVA_OPTS% -javaagent:C:\T24\Area\Temenos\prometheus-2.54.1.windows-amd64\jmx_prometheus_javaagent-0.17.1.jar=8080:C:\T24\Area\Temenos\prometheus-2.54.1.windows-amd64\config.yaml"

[dhoard]

@hemnath83 This issue is caused because a JMX exporter uses Java logging but doesn't use the application's classpath.

You will need to modify the application classpath so that the jar(s) required to use org.jboss.logmanager.LogManager are available to the Java agent classloader.

Reference: #455