[LOG4J2-719] Android throws NetworkOnMainThreadException during Log4j2 initialization

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0
• Fix Version/s: 2.0.1
• Component/s: Configurators, Core
• Labels: Android

Environment

Android

• Assignee: Remko Popma
• Reporter: Remko Popma
• Created: 16/Jul/14 13:16
• Updated: 05/Jul/17 20:01
• Resolved: 16/Jul/14 16:56

Description

(Note that it is possible to work around this issue by modifying the policy and added internet permission to the Android manifest xml file.)

Stacktrace:

07-15 14:38:37.627    1243-1243/com.torointl.log4j2xtest W/dalvikvm﹕ Exception Landroid/os/NetworkOnMainThreadException; thrown while initializing Lcom/torointl/log4j2xtest/MyActivity;
07-15 14:38:37.627    1243-1243/com.torointl.log4j2xtest W/dalvikvm﹕ Class init failed in newInstance call (Lcom/torointl/log4j2xtest/MyActivity;)
07-15 14:38:37.627    1243-1243/com.torointl.log4j2xtest W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0xa4d72b20)
07-15 14:38:37.639    1243-1243/com.torointl.log4j2xtest E/AndroidRuntime﹕ FATAL EXCEPTION: main
    Process: com.torointl.log4j2xtest, PID: 1243
    java.lang.ExceptionInInitializerError
            at java.lang.Class.newInstanceImpl(Native Method)
            at java.lang.Class.newInstance(Class.java:1208)
            at android.app.Instrumentation.newActivity(Instrumentation.java:1061)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2112)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
            at android.app.ActivityThread.access$800(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: android.os.NetworkOnMainThreadException
            at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1145)
            at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
            at java.net.InetAddress.getLocalHost(InetAddress.java:365)
            at org.apache.logging.log4j.core.util.NetUtils.getLocalHostname(NetUtils.java:47)
            at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:356)
            at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:416)
            at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:146)
            at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:75)
            at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:37)
            at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:473)
            at com.torointl.log4j2xtest.MyActivity.<clinit>(MyActivity.java:14)
            at java.lang.Class.newInstanceImpl(Native Method)
            at java.lang.Class.newInstance(Class.java:1208)
            at android.app.Instrumentation.newActivity(Instrumentation.java:1061)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2112)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
            at android.app.ActivityThread.access$800(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
            at dalvik.system.NativeStart.main(Native Method)

Issue Links

• is related to: LOG4J2-703 Android: Could not find class 'javax.naming.InitialContext', referenced from method org.apache.logging.log4j.core.lookup.JndiLookup.lookup