I have few heavyweight components on lightweight panels.
When I an hiding and showing the components, they are not rendered properly.
This is reproducible on windows from build 6u12 . Tested on 6u12, 6u18 builds.

Steps To Reproduce:

1. Run the attached testcase (ShowComp.java)
javac -cp awtsqe.jar ShowComp.java
java -cp awtsqe.jar;. ShowComp
2. Click on Hide button and then Show button
See that the components are not rendered properly.