Name: dkC59003 Date: 05/17/99



HotSpot does not pass the test below (return value is 97)
in compiled mode (-Xcomp option is on): a list of Integer's converts to
String array successfully (while the spec says about toArray(Object[] a)
method: "Throws: ArrayStoreException - if the runtime type of the specified
array is not a supertype of the runtime type of every element in this list.").

$ java -version
java version "1.2"
HotSpot VM (2.0dev, mixed mode, build a)
$ java -Xcomp b4210056
Call succeeded with incorrectly typed array.
$ echo $?
97

The test is passed by classic, 2.0_ea1-A in mixed mode, 1.0fcs-E in compiled mode.
Attempt to reduce run method to just try statement causes the test to pass.
The same problem for win32 1.0_alpha2 release was reported by
the bug #4210056 (integrated).

----------------------------------------------------------- b4210056.java
import java.io.PrintStream;
import java.util.*;

public class b4210056 {

    static int listSize = 99;
    static String className = "java.util.ArrayList";

    public static void main(String argv[]) {
System.exit(run(argv, System.out) + 95/*STATUS_TEMP*/);
    }

    public static int run(String argv[], PrintStream out) {

List list = sortedList(0, listSize);

Integer[] intarrays[] = {new Integer[0],
new Integer[listSize],
new Integer[listSize+1], null};
intarrays[3] = new Integer[listSize -1];

for (int i=0; i<intarrays.length && intarrays[i] != null; i++) {
Integer[] intarray = intarrays[i];
boolean bigEnough = intarray.length >= listSize;
boolean roomToSpare = intarray.length > listSize;
     
if (roomToSpare)
intarray[listSize] = new Integer(69);

Integer[] intdump = (Integer[]) list.toArray(intarray);

if (bigEnough != (intdump==intarray))
return 2/*STATUS_FAILED*/;

if (!bigEnough) { // Output array was allocated
if (intdump.length != list.size())
return 2/*STATUS_FAILED*/;

if (intdump.getClass() != intarray.getClass())
return 2/*STATUS_FAILED*/;
}

if (roomToSpare && intarray[listSize] != null)
return 2/*STATUS_FAILED*/;

if (!list.equals((Arrays.asList(intdump)).subList(0, listSize)))
return 2/*STATUS_FAILED*/;
}

try {
list = sortedList(0, listSize+1);
list.toArray(new String[0]);
out.println("Call succeeded with incorrectly typed array.");
return 2;
} catch (ArrayStoreException r) {
}
return 0/*STATUS_PASSED*/;
    }
    
  
    // Create a Sorted List containing Integers from from to to
    private static List sortedList(int from, int to) {
List list = null;
try {
list = (List)(Class.forName(className).newInstance());
for (int i=from; i<to; i++)
list.add(new Integer(i));
} catch(Throwable e) {
throw new RuntimeException("Couldn't instantiate class " + e);
}
return list;
    }
}

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