FULL PRODUCT VERSION :
java version "1.5.0_05"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_05-b05)
Java HotSpot(TM) Client VM (build 1.5.0_05-b05, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
SunOS iguana 5.11 snv_21 i86pc i386 i86pc

EXTRA RELEVANT SYSTEM CONFIGURATION :
Solaris Express 11/05 on x86 (AMD64 machine)
WindowMaker 0.92.0 compiled from sources.
Sun JDK 1.5.0_05
AMD 64 3500+

A DESCRIPTION OF THE PROBLEM :
I noticed that Java windows show up with delays. That does not happen always. For example start netbeans and open some file. In the editor press ctrl+f. The dialog
is shown but the content drawing is delayed for about 5 seconds. If you move the window the content is drawn instantly. My incident does not relate to merely NetBeans. It's related to every java application.

How to reproduce:

1. Just run any java application, for example NetBeans.
2. Invoke some dialog, for example Help/About
3. Repeat the step 2 several times.

Sometimes The dialog is shown instantly but sometimes it is shown but the content drawing is delayed for about 5 seconds. If you move the window the content is drawn instantly.

REPRODUCIBILITY :
This bug can be reproduced often.