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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Knowledge Centre
Interface and its usage
Interface is similar to a class which may contain method's signature only but not bodies and it is a formal set of method and constant declarations that must be defined by the class that implements it. Interfaces are useful for declaring methods that one or more classes are expected to implement, capturing similarities between unrelated classes without forcing a class relationship and determining an object's programming interface without revealing the actual body of the class.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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