Java 7 application focus issue


I have installed JRE 7 on my machine. After docking a java application (swing/applet) facing a focus issue on text field, at the first stage able to get the focus on text field, once focus was lost (i.e, clicked outside of java application using mouse) and try to regain the focus (i.e, click on text field on java application) could not get the focus on text field. This behavior occurred only in java 7 earlier version of java works fine.

Gone through javadoc and found that there were few changes in focus policy on Java 7. I couldnt able to solve this foucs issue, Please help me out.