Remko Popma created LOG4J2-379:
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             Summary: 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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