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From Seenu <gunrockse...@gmail.com>
Subject Maven - slf4j noclassdeffound error
Date Wed, 23 Oct 2013 12:28:23 GMT
I am using intellij and maven, 

I have used the following pom.xml : 

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd">

  <modelVersion>4.0.0</modelVersion> 

  <groupId>com.tengen</groupId> 
  <artifactId>M101J</artifactId> 
  <version>1.0-SNAPSHOT</version> 
  <packaging>jar</packaging> 

  <name>M101J</name> 
  <url>http://maven.apache.org</url> 

  <properties> 
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 

  </properties> 

  <dependencies> 
      <dependency> 
          <groupId>org.mongodb</groupId> 
          <artifactId>mongo-java-driver</artifactId> 
          <version>2.11.3</version> 
      </dependency> 



      <dependency> 
          <groupId>com.sparkjava</groupId> 
          <artifactId>spark-core</artifactId> 
          <version>1.1</version> 
      </dependency> 

    <dependency> 
      <groupId>junit</groupId> 
      <artifactId>junit</artifactId> 
      <version>4.9</version> 
      <scope>test</scope> 
    </dependency> 

  </dependencies> 
</project> 

------------------------------ 

package com.tengen; 


import spark.Request; 
import spark.Response; 
import spark.Route; 
import spark.Spark; 

/** 
 * Created with IntelliJ IDEA. 
 * User: seenu 
 * Date: 10/19/13 
 * Time: 7:44 PM 
 * To change this template use File | Settings | File Templates. 
 */ 
public class HelloWorldSparkStyle { 
  public static void main(String[] args){ 
     Spark.get(new Route("/") { 
         @Override 
         public Object handle(Request request, Response response) { 
             return "Hello World from Spark!";  //To change body of implemented methods use
File | Settings | File Templates. 
         } 
     }); 
  } 
} 





---------------------------------- 


when I run, via intellij here is what I see, 

/usr/lib/jvm/jdk1.7.0_40/bin/java -Didea.launcher.port=7536 -Didea.launcher.bin.path=/home/sree/IDEA/idea-IC-129.1359/bin
-Dfile.encoding=UTF-8 -classpath /usr/lib/jvm/jdk1.7.0_40/jre/lib/jfr.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/jsse.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/deploy.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/javaws.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/management-agent.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/charsets.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/jce.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/jfxrt.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/plugin.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/resources.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/rt.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/ext/localedata.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/ext/sunpkcs11.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/ext/dnsns.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/ext/sunec.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/ext/sunjce_provider.jar:/usr/lib/jvm/jdk1.7.0_40/jre/lib/ext/zipfs.jar:/home/sree/M101J/out/production/main:/home/sree/.m2/repository/org/mongodb/mongo-java-driver/2.11.3/mongo-java-driver-2.11.3.jar:/home/sree/.m2/repository/com/sparkjava/spark-core/1.1/spark-core-1.1.jar:/home/sree/IDEA/idea-IC-129.1359/lib/idea_rt.jar
com.intellij.rt.execution.application.AppMain com.tengen.HelloWorldSparkStyle 
Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory 
    at spark.route.RouteMatcherFactory.<clinit>(RouteMatcherFactory.java:27) 
    at spark.Spark.init(Spark.java:299) 
    at spark.Spark.addRoute(Spark.java:282) 
    at spark.Spark.get(Spark.java:168) 
    at com.tengen.HelloWorldSparkStyle.main(HelloWorldSparkStyle.java:18) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke(Method.java:606) 
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120) 
Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory 
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366) 
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) 
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) 
    ... 10 more 

Process finished with exit code 1 


----------------------------- 


what could be wrong here? can someone please point me whre to look? I was hoping maven would
put the slf4j-api into the classpath when I add dependency but it is not. 

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