Invalid data returned when iterating a java.util.Properties

Question

Hi all,
I'm having trouble iterating thru the values in a java.util.Properties object.
This problem only occurs when passing in a java.util.Properties object into the constructor of a java.util.Properties.
Here's some example code. (A picture is worth....)
<pre>
import java.util.Properties;
import java.util.Iterator;
public class PropertyTest {
public static void main(String[] args) {
Properties validProp = new Properties();
//add some data
validProp.put("key1", "key1Value");
validProp.put("key2", "key2Value");
validProp.put("key3", "key3Value");
System.out.println("This will iterate...");
dumpPropertyFile(validProp); //This will iterate correctly
Properties inValidProp = new Properties(validProp);
System.out.println("This doesn't iterate correctly");
dumpPropertyFile(inValidProp); //This will not iterate
public static void dumpPropertyFile(Properties prop) {
Iterator iter = prop.keySet().iterator();
while (iter.hasNext()) {
String key = (String)iter.next();
System.out.println(key + "=" + prop.getProperty(key));
</pre>
I have searched the bug database, but didn't find any open bugs related to this issue.
Could someone let me know if this is a existing bug or has this bug already been addressed.
My setup.
NT 4.0 / jdk1.3.1
Thanks,

Answer 1

I found this works.
Iterator e = _props.keySet().iterator();
while(e.hasNext())
String str = (String)e.next();
System.out.println("key(" + str + ")=" + _props.getProperty(str));
but the display sequence is always in descending order ???
Anyone has a clue ?
Input :
catch#2 Prop catch#2
prop2 Properties.test.2
catch#6 Prop catch#6
catch#3 Prop catch#3
catch#5 Prop catch#5
catch#4 Prop catch#4
prop3 test Properties
prop4 test Properties4
prop1 Properties.test.1
catch#1 Prop catch#1
Output:
prop4=test Properties4<
prop3=test Properties<
prop2=Properties.test.2<
prop1=Properties.test.1<
catch#6=Prop catch#6<
catch#5=Prop catch#5<
catch#4=Prop catch#4<
catch#3=Prop catch#3<
catch#2=Prop catch#2<
catch#1=Prop catch#1<