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Posted to log4j-dev@logging.apache.org by "Lukasz Lenart (JIRA)" <ji...@apache.org> on 2015/06/10 07:48:00 UTC
[jira] [Commented] (LOG4J2-1035) Log4j2 tries to SystemClassLoader
when running on Google AppEngine
[ https://issues.apache.org/jira/browse/LOG4J2-1035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14580064#comment-14580064 ]
Lukasz Lenart commented on LOG4J2-1035:
---------------------------------------
Maybe it would be better to add a flag to disable access to {{SystemClassLoader}} in {{LoaderUtil}} as probably {{LoaderUtil}} is used elsewhere as well
> Log4j2 tries to SystemClassLoader when running on Google AppEngine
> ------------------------------------------------------------------
>
> Key: LOG4J2-1035
> URL: https://issues.apache.org/jira/browse/LOG4J2-1035
> Project: Log4j 2
> Issue Type: Bug
> Components: Configurators
> Affects Versions: 2.3
> Environment: Google AppEngine
> Reporter: Lukasz Lenart
>
> Apache Struts recently switched to Log4j2 as a base logging layer and this broke deployments to Google AppEngine, below is the exception:
> {noformat}
> Uncaught exception from servlet
> java.lang.ExceptionInInitializerError
> at org.apache.logging.log4j.status.StatusLogger.<clinit>(StatusLogger.java:55)
> at org.apache.logging.log4j.LogManager.<clinit>(LogManager.java:56)
> at org.apache.struts2.tiles.StrutsTilesListener.<clinit>(StrutsTilesListener.java:50)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
> at java.lang.Class.newInstance(Class.java:375)
> at org.mortbay.jetty.webapp.WebXmlConfiguration.newListenerInstance(WebXmlConfiguration.java:650)
> at org.mortbay.jetty.webapp.WebXmlConfiguration.initListener(WebXmlConfiguration.java:631)
> at org.mortbay.jetty.webapp.WebXmlConfiguration.initWebXmlElement(WebXmlConfiguration.java:368)
> at org.mortbay.jetty.webapp.WebXmlConfiguration.initialize(WebXmlConfiguration.java:289)
> at org.mortbay.jetty.webapp.WebXmlConfiguration.configure(WebXmlConfiguration.java:222)
> at org.mortbay.jetty.webapp.WebXmlConfiguration.configureWebApp(WebXmlConfiguration.java:180)
> at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1247)
> at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
> at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
> at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.createHandler(AppVersionHandlerMap.java:199)
> at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.getHandler(AppVersionHandlerMap.java:174)
> at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:134)
> at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:527)
> at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:437)
> at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:444)
> at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:230)
> at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:308)
> at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:300)
> at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:441)
> at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "getClassLoader")
> at java.security.AccessControlContext.checkPermission(AccessControlContext.java:382)
> at java.security.AccessController.checkPermission(AccessController.java:572)
> at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
> at com.google.apphosting.runtime.security.CustomSecurityManager.checkPermission(CustomSecurityManager.java:56)
> at java.lang.ClassLoader.checkClassLoaderPermission(ClassLoader.java:1606)
> at java.lang.ClassLoader.getSystemClassLoader(ClassLoader.java:1525)
> at org.apache.logging.log4j.util.LoaderUtil.findUrlResources(LoaderUtil.java:192)
> at org.apache.logging.log4j.util.LoaderUtil.findResources(LoaderUtil.java:183)
> at org.apache.logging.log4j.util.PropertiesUtil.<init>(PropertiesUtil.java:90)
> at org.apache.logging.log4j.util.PropertiesUtil.<clinit>(PropertiesUtil.java:36)
> ... 30 more
> {noformat}
> Looks like it tries to read a file from filesystem which is prohibited.
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