Name: ksC84122 Date: 03/12/99


java.util.Arrays.asList(null) returns invalid List.
If java.util.ArrayList.size() method is called with the obtained
List object, NullPointerException is thrown.
The javadoc says nothing about handling null parameter.

An example to reproduce this:
===== Test02.java ========
import java.util.*;

public class Test02 {
    public static void main(String argv[]) {
        List aList = null;
        
        try {
            aList = Arrays.asList( null );
        } catch (NullPointerException npe) {
            System.out.println("PASSED: NullPointerException thrown");
            return;
        }
        if ( aList.size() == 0 ) {
            System.out.println( "Returned List is empty." );
            return;
        }
    }
}

========= Sample run (JDK1.2.1) ==========
#>java Test02
Exception in thread "main" java.lang.NullPointerException
        at java.util.Arrays$ArrayList.size(Arrays.java, Compiled Code)
        at Test02.main(Test02.java, Compiled Code)

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