java.lang.instrument.ClassDefinition Class in Java

// Java program to create new ClassDefinition object
import java.lang.instrument.ClassDefinition;

// driver class
public class GFG {
    // demoClass
    static class demoClass {
        void msg() { System.out.println("GeeksForGeeks"); }
    }
    // main method
    public static void main(String[] args)
    {
        try {

            // creating demoClass object
            demoClass cls = new demoClass();
          
            // creating object of supplied class
            Class<?> theClass = cls.getClass();
          
            // creating array of class files
            byte[] classFiles = { 0 };
          
            // creating a new ClassDefinition object
            ClassDefinition classdefinition
                = new ClassDefinition(theClass, classFiles);
            System.out.println(
                "ClassDefinition object successfully created");
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }
}

// Java program to illustrate ClassDefinition class methods
import java.lang.instrument.ClassDefinition;

// driver class
public class GFG {
  
    // demoClass
    static class demoClass {
        void msg() { System.out.println("GeeksForGeeks"); }
    }
  
    // main method
    public static void main(String[] args)
    {
        try {

            // creating demoClass object
            demoClass cls = new demoClass();
          
            // creating object of supplied class
            Class<?> theClass = cls.getClass();
          
            // creating array of class files
            byte[] classFiles = { 0 };
          
            // creating a new ClassDefinition object
            ClassDefinition classdefinition
                = new ClassDefinition(theClass, classFiles);
          
            // printing the class
            System.out.println(
                classdefinition.getDefinitionClass());
          
            // printing array of bytes that contain class
            // files
            System.out.println(
                classdefinition.getDefinitionClassFile());
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }
}