Constructs a new portlet exception with the given text. The
portlet container may use the text write it to a log.
Parameters: text - the exception text
Constructs a new portlet exception when the portlet needs to throw an
exception. The exception's message is based on the localized message
of the underlying exception.
Parameters: cause - the root cause
Returns the cause of this throwable or null if the
cause is nonexistent or unknown. (The cause is the throwable that
caused this throwable to get thrown.)
This implementation returns the cause that was supplied via one of
the constructors requiring a Throwable.
the cause of this throwable or null if thecause is nonexistent or unknown.