java.lang.IllegalStateException: Cannot forward a response that is already committed on a JSF action with sendRedirect/forward in ADF

Oracle ADF, Oracle Tutorials / July 20, 2018

This kind of java.lang.IllegalStateException exception are triggered when some Java code is executed after a forward(), sendRedirect() or sendError(). You can refer to this StackOverflow thread to learn more about how to avoid this in Java: here I’ve encountered this error in ADF a couple of time when you use a forward(), sendRedirect() or sendError() …

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