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https://issues.apache.org/jira/browse/LOG4J2-379?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13770153#comment-13770153
 ] 

Michael Peter Gower commented on LOG4J2-379:
--------------------------------------------

Wow, that was quick!  My config is basically a copy from the getting started 
section:
{noformat}
<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
  <Appenders>
    <Console name="STDOUT" target="SYSTEM_OUT">
      <PatternLayout pattern="%d %-5p [%t] %C{2} (%F:%L) - %m%n" />
    </Console>
  </Appenders>
  <Loggers>
    <Logger name="com.peninsulawebsolutions" level="trace" />
    <Root level="warn">
      <AppenderRef ref="STDOUT" />
    </Root>
  </Loggers>
</Configuration>
{noformat}
                
> Problem using log4j2 in Google App Engine
> -----------------------------------------
>
>                 Key: LOG4J2-379
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-379
>             Project: Log4j 2
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 2.0-beta8
>         Environment: Google App Engine
>            Reporter: Remko Popma
>
> {code}
> [INFO] Caused by: java.lang.NoClassDefFoundError: 
> java.lang.management.ManagementFactory is a restricted class. Please see the 
> Google  App Engine developer's guide for more details.
> [INFO]  at 
> com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java:51)
> [INFO]  at 
> org.apache.logging.log4j.core.appender.rolling.OnStartupTriggeringPolicy.<clinit>(OnStartupTriggeringPolicy.java:33)
> [INFO]  at java.lang.Class.forName0(Native Method)
> [INFO]  at java.lang.Class.forName(Class.java:186)
> [INFO]  at 
> org.apache.logging.log4j.core.config.plugins.PluginManager.decode(PluginManager.java:222
> {code}
> This seems to be caused by the {{OnStartupTriggeringPolicy}} class 
> initializing a static field with this code:
> {code}
> private static final long JVM_START_TIME = 
> ManagementFactory.getRuntimeMXBean().getStartTime();
> {code}
> Is there a workaround for this?

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