Name: krC82822 Date: 11/21/2000


21 Nov 2000, eval1127@eng -- reproducible with 1.3.0 on Solaris.

java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Java HotSpot(TM) Client VM (build 1.3.0-C, mixed mode)

The method
    createValue()
of class
    javax.swing.UIDefaults.ProxyLazyValue

can not load user classes, that are not included in the Java runtime libraries.
The user class is surely accessible, but for some strange reasons
ProxyLazyValue.createValue() raises java.lang.ClassNotFoundException.

In the following demo, it's obvious that java.lang.Math.random() is executed,
but Test.getHello() is not.

--------------------------------------------
Here is the demonstrating test case:
--------------------------------------------

import javax.swing.UIDefaults;

public class Test {

public static void main(String[] args) {
test("java.lang.Math", "random");
test("Test", "getHello");
}

public static void test(String classname, String methodname) {
UIDefaults.ProxyLazyValue p =
new UIDefaults.ProxyLazyValue(classname, methodname);
System.out.println(p.createValue(null));
}

public static String getHello() {
return "Hello";
}
}

--------------------------------------------
And here is the output:
--------------------------------------------

0.5032680194124979
Problem creating Test with method getHello and args { : java.lang.ClassNotFoundE
xception: Test
java.lang.Exception: Stack trace
        at java.lang.Thread.dumpStack(Unknown Source)
        at javax.swing.UIDefaults$ProxyLazyValue.createValue(Unknown Source)
        at Test.test(Test.java:13)
        at Test.main(Test.java:7)
null
(Review ID: 106138)
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