The Spring framework is one of the most popular frameworks for developing Java application. Apart from many goodies, it also provides a DI and IOC container which initialize objects and their dependencies and assemble them together. The Java classes created and maintained by Spring are called Spring bean. At the startup, when Spring framework initializes system by creating objects and their dependencies depending upon @Autowired annotation or spring configuration XML file, it throws "org.springframework.beans.factory.BeanCreationException: Error creating a bean with name X" error if it is not able to instantiate a particular Spring bean. There could be numerous reasons why Spring could not able to create a bean with name X, but clue always lies on the detailed stack trace. This error always has some underlying cause e.g. a ClassNotFoundException or a NoClassDefFoundError, which potentially signal a missing JAR file in the classpath.
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