How To Cook Java.Lang.Classnotfoundexception: Org.Apache.Commons.Logging.Logfactory

java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory  or "Exception inwards thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory" exception comes when you lot don't apache commons-logging-1.1.1.jar inwards your Classpath. I convey faced this exception many times piece using open source framework similar Struts, Spring together with Displaytag which uses commons-logging framework for logging. commons-logging is non an actual coffee logging framework simply provides a wrapper then that you lot tin purpose log4j, java logging or any other Java logging framework. commons-logging is every bit good smart plenty to abide by which logging framework are you lot using e.g if you lot are using log4j it tin abide by it past times looking log4j.jar inwards your classpath. simply if you lot don't convey commons-logging.jar in your classpath you lot may instruct java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory at runtime even if your application gets deployed successfully.


Cause of java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory

I convey faced this exception many times piece using opened upwards How to produce java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactoryJVM non able to locate commons-logging-1.1.1.jar inwards classpath simply it may surface differently on dissimilar environment. Some fourth dimension fifty-fifty you get this fault fifty-fifty if you lot already convey commons-logging-1.1.1.jar inwards classpath together with many times it dissimilar reasons for different environment. It gets to a greater extent than hard on managed environs similar J2EE spider web servers together with application servers where different classloader loads dissimilar classes e.g. AppClassLoader is responsible for loading spider web application but classes within lib directory of spider web server e.g. tomcat is loaded past times approximately other classloader. So you lot tin every bit good get "java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory" if commons-logging.jar is non visible to App classloader. approximately times this jounce tin every bit good displace memory leak inwards tomcat.


here I convey outlined approximately steps to produce "java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory" these are based on approach I used to resolve such sort of error. it may aid you lot every bit well.

java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory Solution

1.Check your classpath for commons-logging-1.1.1.jar, if you lot are using confine MVC together with working inwards spider web application it
must live on on /WEB-INF/lib directory.

2.Check if your Java plan has sufficient permission to access that jounce file (I faced this trial inwards Unix machine
when user who copied that jounce does override the default permission together with application was non able to read this jounce file
so brand certain to banking enterprise gibe permissions if you lot are copying commons-logging-1.1.1.jar into Java Classpath.

3.See if commons-logging-1.1.1.jar contains org.apache.commons.logging.LogFactory degree or non this may hap if commons-logging-1.1.1.jar is corrupt or non downloaded completely or may live on downloaded from wrong source.

4.See if your Classpath is getting overridden past times whatsoever start-up Script every bit suggested on my post service how to solve java.lang.ClassNotFoundException

5.If you lot are using maven for managing dependency on your projection than banking enterprise gibe if your pom.xml file contains following
entry or non together with if it doesn't than include next dependency for commons-logging-1.1.1.jar inwards pom.xml:
Maven dependency for Apache commons-logging:

<dependency>
        <groupId>commons-logging</groupId>
        <artifactId>commons-logging</artifactId>
        <version>1.1.1</version>
</dependency>


That's all on How to produce java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory Error, it may surface as "Exception inwards thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory" every bit good simply mostly cause of both errors are same. If you lot convey whatsoever other useful pace to figure out ClassNotFoundException propose it here.

Further Learning
Complete Java Masterclass
How Generics plant inwards Java
10 Points on Static keyword inwards Java
When to purpose volatile inwards Java
How concluding keyword plant inwards Java
Difference betwixt Runnable vs Thread inwards Java
When to purpose Factory Pattern inwards Java amongst Example
When to purpose Decorator blueprint pattern inwards Java

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