How to Stop the method Action When an Exception Occur in other Method

Hi All ,
public void action( Event clientEvent) {
startAction();
JOptionPane.showMessageDialog(null, getDocumnetId());
how to Stop the method action ( "action" ) if an exception occur in the method ("startAction")
( if the exception occur we doesn't need to show the JOption Message )

Hi,
try FacesContext.getCurrentInstance().renderResponse();
Frank

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Will program crashes?

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Or, how to catch which button is clicked by a user in Flex?
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==============================
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==============================
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loop_break = false;
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How to Stop the method Action When an Exception Occur in other Method

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