Example

import java.util.*;

public class ClassA {
Vector v = new Vector();
Enumeration e = v.elements();
//..
}


Solution
Avoid or enforce the usage of '*" in import statements. The default is set to avoid. The java.util pacakge has many sub-packages and including all when most are not being used is unnecessary.

import java.util.Vector;
import java.util.Enumeration;

public class ClassA {
Vector v = new Vector();
Enumeration e = v.elements();
//..
}