Name: sdC67446 Date: 09/27/99


The method
    public Object createValue(UIDefaults table)
of class
    javax.swing.UIDefaults.ProxyLazyValue:

1) does not use input parameter 'table'
2) prints too much if output value is null
   (see test)

The doc says:
--------------------------------------------------
public UIDefaults.ProxyLazyValue(String c,
                                 String m,
                                 Object[] o)

      Create a LazyValue which will construct an instance when asked.
      Parameters:
            c - a String specifying the classname of the class
                containing a static method to be called for instance creation.
            m - a String specifying the static method to be called on
                class c.
            o - an array of Objects to be passed as paramaters to the
                static method in class c.

The demo test:
--------------------------------------------------
import javax.swing.UIDefaults;

public class Test {
    static void test(int caseno,
                     String c,
                     String m,
                     Object[] o) {
        System.out.println("=== caseno: "+caseno);
        UIDefaults.ProxyLazyValue plv =
            new UIDefaults.ProxyLazyValue(c, m, o);
        System.out.println("=== output: "+plv.createValue(new UIDefaults()));
    }

    public static void main(String argv[]) {
        test(1,null,"method",null);
        test(2,"java.lang.Boolean",null,null);
        test(3,"java.lang.Boolean","noMethod",null);
        test(4,"java.lang.String","valueOf",null);
    }
}

Output:
--------------------------------------------------
=== caseno: 1
Problem creating null with method method and args { : java.lang.NullPointerException
java.lang.Exception: Stack trace
        at java.lang.Thread.dumpStack(Thread.java:983)
        at javax.swing.UIDefaults$ProxyLazyValue.createValue(UIDefaults.java:620)
        at Test.test(Test.java:11)
        at Test.main(Test.java:15)
=== output: null
=== caseno: 2
Problem with constructor java.lang.Boolean and args { : and types { : java.lang.NoSuchMethodException
java.lang.Exception: Stack trace
        at java.lang.Thread.dumpStack(Thread.java:983)
        at javax.swing.UIDefaults$ProxyLazyValue.createValue(UIDefaults.java:613)
        at Test.test(Test.java:11)
        at Test.main(Test.java:16)
=== output: null
=== caseno: 3
Problem creating java.lang.Boolean with method noMethod and args { : java.lang.NoSuchMethodException
java.lang.Exception: Stack trace
        at java.lang.Thread.dumpStack(Thread.java:983)
        at javax.swing.UIDefaults$ProxyLazyValue.createValue(UIDefaults.java:620)
        at Test.test(Test.java:11)
        at Test.main(Test.java:17)
=== output: null
=== caseno: 4
Problem creating java.lang.String with method valueOf and args { : java.lang.NoSuchMethodException
java.lang.Exception: Stack trace
        at java.lang.Thread.dumpStack(Thread.java:983)
        at javax.swing.UIDefaults$ProxyLazyValue.createValue(UIDefaults.java:620)
        at Test.test(Test.java:11)
        at Test.main(Test.java:18)
=== output: null

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