FULL PRODUCT VERSION :
Jre1.6.0_02,Jre1.6.0_06 Jre1.6.0_12

A DESCRIPTION OF THE PROBLEM :
Why is it that getFontName is slow in Java6?
I show below the measurement result in each JAVA version.
Jre1.4.2_14(7.5ms)
Jre1.6.0_02(247.6ms)
Jre1.6.0_06(249.6ms)
Jre1.6.0_12(224.7ms)

1. The OS is Windows Vista, but is there the report of such a phenomenon?

2. Will there be the plan improved in a future JAVA version?

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. I make applet for tests to measure time of getFontName.
2. I make HTML with above applet.
3. I carry out applet for tests in Jre1.4.2.
4. I carry out applet for tests in Jre1.6.0.


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
In Jre1.4.2 and Jre1.6.0, a response of getFontName is equal.
ACTUAL -
I show below the measurement result in each JAVA version.
Jre1.4.2_14(7.5ms)
Jre1.6.0_02(247.6ms)
Jre1.6.0_06(249.6ms)

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
/*
 * test
 */

// MyButton.java

import java.awt.*;
import java.awt.datatransfer.*;
import java.applet.Applet;
import java.io.*;
import java.net.URL;
import java.net.URLConnection;
import java.security.AccessControlException;
import java.util.*;
import javax.swing.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.util.concurrent.TimeUnit;

public class MyButton extends Applet implements ActionListener {
    long now,begin,diff;
        long mainnow,mainbegin,maindiff;
        long cnt1,cnt2,cnt3,cnt4,cnt5,cnt6,cnt7,cnt8,cnt9,cnt10,cnt11;
        Button button1;

    public void init() {
        button1 = new Button("OK");

        add(button1);

        button1.addActionListener(this);


        Font[] fonts = GraphicsEnvironment.getLocalGraphicsEnvironment().getAllFonts();
        cnt6 = 0;
        for (int j = 1; j < 11; j++) {
                int i;
  mainbegin = System.currentTimeMillis();
                System.out.println("" + j + " times run ");
         for (i = 0; i < fonts.length; i++) {
     begin = System.currentTimeMillis();
String localFont = fonts[i].getFontName();
now = System.currentTimeMillis();
diff = now - begin;
                        if (diff > 0 ) {
System.out.println("font serach (ms) =" + diff + " fontname=" +localFont);
                        }
}
mainnow = System.currentTimeMillis();
maindiff = mainnow - mainbegin;
                 if ( j == 1){
                    cnt1 = maindiff;
                    cnt11 = cnt11 + cnt1;
                 }
                 if ( j == 2){
                    cnt2 = maindiff;
                    cnt11 = cnt11 + cnt2;
                 }
                 if ( j == 3){
                    cnt3 = maindiff;
                    cnt11 = cnt11 + cnt3;
                 }
                 if ( j == 4){
                    cnt4 = maindiff;
                    cnt11 = cnt11 + cnt4;
                 }
                 if ( j == 5){
                    cnt5 = maindiff;
                    cnt11 = cnt11 + cnt5;
                 }
                 if ( j == 6){
                    cnt6 = maindiff;
                    cnt11 = cnt11 + cnt6;
                 }
                 if ( j == 7){
                    cnt7 = maindiff;
                    cnt11 = cnt11 + cnt7;
                 }
                 if ( j == 8){
                    cnt8 = maindiff;
                    cnt11 = cnt11 + cnt8;
                 }
                 if ( j == 9){
                    cnt9 = maindiff;
                    cnt11 = cnt11 + cnt9;
                 }
                 if ( j == 10){
                    cnt10 = maindiff;
                    cnt11 = cnt11 + cnt10;
                 }
}
        System.out.println("");
                    System.out.println("- 1 time (ms)=" + cnt1);
                    System.out.println("- 2 time (ms)=" + cnt2);
                    System.out.println("- 3 time (ms)=" + cnt3);
                    System.out.println("- 4 time (ms)=" + cnt4);
                    System.out.println("- 5 time (ms)=" + cnt5);
                    System.out.println("- 6 time (ms)=" + cnt6);
                    System.out.println("- 7 time (ms)=" + cnt7);
                    System.out.println("- 8 time (ms)=" + cnt8);
                    System.out.println("- 9 time (ms)=" + cnt9);
                    System.out.println("- 10 time (ms)=" + cnt10);
        System.out.println("");
        System.out.println("-- 10 times (ms) =" + cnt11);
        System.out.println("-- OS fonts count=" + fonts.length);
    }

    public void actionPerformed(ActionEvent evt) {
        System.out.println("Button is " + ((Button)evt.getSource()).getLabel());
    }
}
---------- END SOURCE ----------

Release Regression From : 1.4.2_15
The above release value was the last known release where this
bug was not reproducible. Since then there has been a regression.

Release Regression From : 1.4.2_15
The above release value was the last known release where this
bug was not reproducible. Since then there has been a regression.