JavaLostHimselfInStatic.java

import java.lang.invoke.MethodHandles;

class Base {
    public static class CurrentClassGetter extends SecurityManager {
        public Class<?>[] getClassContext() {
            return super.getClassContext();
        }
    }

    public static void find(int id) {
        // Class base = MethodHandles.lookup().lookupClass();                                                                                                                     
        // Class base = new Object(){}.getClass().getEnclosingClass();                                                                                                            
        // System.out.println("Find " + base.getName() + " with id: " + id);                                                                                                      


        // System.out.println(new Throwable().getStackTrace()[2]);                                                                                                                

        System.out.println(new CurrentClassGetter().getClassContext()[2]);
    }
}

class Student extends Base {
}

class HelloWorld  {
    public static void main(String args[]) {
        Student.find(666);
    }
}