JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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CGLIB is required to process @Configuration classes


Incase if you are using @Configuration annotation to create java based configuration as shown below:

@Configuration
public class MyAppConfig {

    @Bean(name="helloBean")
    public HelloWorld helloWorld()
    {
        return new HelloWorldImpl();
    }
}

And if you are getting below exception, then check your maven dependencies and make sure you have added cglib dependencies in your pom.xml.

Exception in thread "main" java.lang.IllegalStateException: CGLIB is required to process 
@Configuration classes. Either add CGLIB to the classpath or remove the following 
@Configuration bean definitions: [appConfig]

If not, add below dependency in your pom.xml file, which will solve your problem.

		<dependency>
			<groupId>cglib</groupId>
			<artifactId>cglib</artifactId>
			<version>3.0</version>
		</dependency>

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What is adapter class?
An adapter class provides the default implementation of all methods in an event listener interface. Adapter classes are very useful when you want to process only few of the events that are handled by a particular event listener interface. You can define a new class by extending one of the adapter classes and implement only those events relevant to you.
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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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