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

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.0-rc2
• Fix Version/s: 2.0, 2.0.1
• Labels: Android

Environment

Android

• Assignee: Unassigned
• Reporter: Nelson MELINA
• Created: 08/Jul/14 10:52
• Updated: 05/Jul/17 19:53
• Resolved: 15/Jul/14 16:11

Description

Hi guys, i'm trying to use Log4J2 in an Android (19) application and it's not working. Here is the code i have and the stacktrace i obtain when running the application.

Am i missing something or is Log4J2 not working yet in an Android environment ?

MyActivity.java

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;


public class MyActivity extends Activity {

    static final Logger logger = LogManager.getLogger(MyActivity.class.getName());

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my);
        logger.error("TEST ############################################");
    }

07-08 10:40:23.401    1307-1307/com.intl.log4j2xtest E/dalvikvm﹕ Could not find class 'javax.naming.InitialContext', referenced from method org.apache.logging.log4j.core.lookup.JndiLookup.lookup
07-08 10:40:23.441    1307-1307/com.intl.log4j2xtest E/AndroidRuntime﹕ FATAL EXCEPTION: main
    Process: com.intl.log4j2xtest, PID: 1307
    java.lang.VerifyError: org/apache/logging/log4j/core/lookup/JndiLookup
            at org.apache.logging.log4j.core.lookup.Interpolator.<init>(Interpolator.java:75)
            at org.apache.logging.log4j.core.config.AbstractConfiguration.<init>(AbstractConfiguration.java:99)
            at org.apache.logging.log4j.core.config.NullConfiguration.<init>(NullConfiguration.java:29)
            at org.apache.logging.log4j.core.LoggerContext.<clinit>(LoggerContext.java:63)
            at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.locateContext(ClassLoaderContextSelector.java:218)
            at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:144)
            at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:80)
            at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:72)
            at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:37)
            at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:473)
            at com.intl.log4j2xtest.MyActivity.<clinit>(MyActivity.java:16)
            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)

build.gradle file :

apply plugin: 'com.android.application'

android {
    compileSdkVersion 19
    buildToolsVersion "19.1.0"

    defaultConfig {
        applicationId "com.intl.log4j2xtest"
        minSdkVersion 19
        targetSdkVersion 19
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            runProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    packagingOptions {
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/NOTICE'
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.0-rc2'
    compile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.0-rc2'
}

Issue Links

• is cloned by: LOG4J2-713 Android: java.lang.VerifyError: org/apache/logging/log4j/core/util/Closer
• is superceded by: LOG4J2-716 Auto-disable JMX when detecting Android
• relates to: LOG4J2-719 Android throws NetworkOnMainThreadException during Log4j2 initialization