[jboss-jira] [JBoss JIRA] (WFLY-13667) Prometheus JMX exporter jar, stops starting the wildfly server.

[James Perkins (Jira)]

    [ https://issues.redhat.com/browse/WFLY-13667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240319#comment-14240319 ] 

James Perkins commented on WFLY-13667:
--------------------------------------

[~rakesh.shah1977] Okay so I'm not sure why, but if you add {{-Djava.util.logging.manager=org.jboss.logmanager.LogManager}} as the first argument it seems to work.
{code}
set "-Djava.util.logging.manager=org.jboss.logmanager.LogManager JAVA_OPTS=%JAVA_OPTS% -Xbootclasspath/a:%JBOSS_HOME%\modules\system\layers\base\org\jboss\logmanager\main\jboss-logmanager-2.1.15.Final.jar;%JBOSS_HOME%\modules\system\layers\base\org\wildfly\common\main\wildfly-common-1.5.4.Final.jar -javaagent:%JBOSS_HOME%\jmx_prometheus_javaagent-0.13.0.jar=9080:%JBOSS_HOME%\standalone\configuration\config.yaml"
{code}

Note the only difference in my snippet is the placement of setting the log manager and I put the configuration in the {{standalone}} configuration directory.

> Prometheus JMX exporter jar, stops starting the wildfly server. 
> ----------------------------------------------------------------
>
>                 Key: WFLY-13667
>                 URL: https://issues.redhat.com/browse/WFLY-13667
>             Project: WildFly
>          Issue Type: Bug
>          Components: Logging
>    Affects Versions: 20.0.1.Final
>            Reporter: Rakesh Kumar Shah
>            Assignee: James Perkins
>            Priority: Major
>
> Trying to integrate the Prometheus JMX exporter with wildfly.  After spending lot of time and work around it, wildfly is not starting.  It throws following exception. 
> {code}
> java.lang.ClassNotFoundException: org.jboss.logmanager.LogManager
>  at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
>  at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
>  at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
>  at java.logging/java.util.logging.LogManager$1.run(LogManager.java:239)
>  at java.logging/java.util.logging.LogManager$1.run(LogManager.java:223)
>  at java.base/java.security.AccessController.doPrivileged(Native Method)
>  at java.logging/java.util.logging.LogManager.<clinit>(LogManager.java:223)
>  at java.logging/java.util.logging.Logger.demandLogger(Logger.java:648)
>  at java.logging/java.util.logging.Logger.getLogger(Logger.java:717)
>  at java.logging/java.util.logging.Logger.getLogger(Logger.java:701)
>  at io.prometheus.jmx.shaded.io.prometheus.jmx.JmxCollector.<clinit>(JmxCollector.java:39)
>  at io.prometheus.jmx.shaded.io.prometheus.jmx.JavaAgent.premain(JavaAgent.java:29)
>  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>  at java.base/java.lang.reflect.Method.invoke(Method.java:566)
>  at java.instrument/sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:513)
>  at java.instrument/sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:525)
> WARNING: Failed to load the specified log manager class org.jboss.logmanager.LogManager
> Exception in thread "main" java.lang.NoClassDefFoundError: org/jboss/logmanager/Level
>  at java.base/java.lang.Class.forName0(Native Method)
>  at java.base/java.lang.Class.forName(Class.java:398)
>  at org.jboss.modules.Module.run(Module.java:340)
>  at org.jboss.modules.Module.run(Module.java:320)
>  at org.jboss.modules.Main.main(Main.java:617)
> Caused by: java.lang.ClassNotFoundException: org.jboss.logmanager.Level
>  at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
>  at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
>  at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
>  at org.jboss.modules.JDKSpecific.getSystemClass(JDKSpecific.java:183)
>  at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:395)
>  at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:116)
> {code}



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