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

[Rakesh Kumar Shah (Jira)]

Rakesh Kumar Shah created WFLY-13667:
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             Summary: 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


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. 

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)



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