Fix java.lang.ClassNotFoundException

One of the most common exception that a Java software developer encounters during the development of a program is nothing but ClassNotFoundException. If you are a developer think how many times you have encountered this exception and the hours you spent finding the right jar to fix it. Well its not that hard any longer. Here are some sites that will help you.

jarsearch.com

JarSearch.com is the tool of choice for software developers and software engineers searching for the jar file of a missing class. You can search for packages or classes.

findjar.com

findJAR.com is a JAR search engine that helps to find JAR files containing required Java classes. Simply enter the name of the class or the JAR file you are looking for and start your search. findJAR.com can be used to easily resolve NoClassDefFoundError and ClassNotFoundException problems.

docjar.com

This is another jar search engine that helps you to find the jar files. It also provides a plug-in for Eclipse. So without leaving your IDE, you can access thousands of Java APIs, and search Google.

jarfinder.com

Jarfinder provides a huge searchable database of classes and jars from a wide variety of Java projects. This makes it easy to resolve ClassNotFoundExceptions or NoClassDefFoundErrors.