NoClassDefFoundError: org/slf4j/impl/StaticLoggerBinder

user_305684 0
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I'm trying to run the sample tiles example given here.

Below is my POM.xml:

<dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.tiles</groupId>
            <artifactId>tiles-api</artifactId>
            <version>2.1.2</version>
        </dependency>
        <dependency>
            <groupId>org.apache.tiles</groupId>
            <artifactId>tiles-core</artifactId>
            <version>2.1.2</version>
        </dependency>
        <dependency>
            <groupId>org.apache.tiles</groupId>
            <artifactId>tiles-jsp</artifactId>
            <version>2.1.2</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.5.2</version>
        </dependency>

When I'm trying to run the example the below error is thrown:

Sep 17, 2010 11:59:43 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Error configuring application listener of class      org.apache.tiles.web.startup.TilesListener
java.lang.NoClassDefFoundError: org/slf4j/impl/StaticLoggerBinder
at org.slf4j.LoggerFactory.<clinit>(LoggerFactory.java:60)
at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:155)
at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:131)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:685)
at org.apache.tiles.web.startup.TilesListener.<init>(TilesListener.java:49)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)

Any idea?

I spent 30 minutes googling for this but could not find a possible sollution.

Please help me...

tiles slf4j java
6 Answers

i had the same error while working with hibernate, i had added below dependency in my pom.xml that solved the problem

    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-api</artifactId>
        <version>1.7.10</version>
    </dependency>

reference https://mvnrepository.com/artifact/org.slf4j/slf4j-api

user_31560060

A good practice to ensure consistency of SL4J versions is to centralize the version in a property like this:

...
    <properties>
        <org.slf4j.version>1.5.2</org.slf4j.version><!-- SLF4J release -->
    </properties>
...
     <dependencies>
        <!-- SL4J with LOG4J implementation -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${org.slf4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>${org.slf4j.version}</version>
        </dependency>
...
user_78130260
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