Re: How to satisfy the code checker in this instance?
Jim Janney <jjanney@shell.xmission.com> writes:
laredotornado <laredotornado@zipmail.com> writes:
Hi,
I'm using Java 1.5 with a code checker named PMD. It is complaining
about the following method ...
private static Date parse(final String dateStr, final String
dateFormat) {
Date date = null;
try {
final DateFormat sdf = new SimpleDateFormat(dateFormat,
Locale.getDefault());
date = sdf.parse(dateStr);
} catch (Exception e) {
LOGGER.error("Could not parse time:" + dateStr, e);
}
return date;
} // parse
specifically, complaining about the fact that the variable "Date date
= null" is redefined -- first set to null and then later set to a new
value (Found 'DD' anomaly for variable date). Yes, quite a bizarre
warning, but do you know how to rewrite the above to preserve the
functionality while not redefining the variable?
Thanks, - Dave
private static Date parse(final String dateStr, final String dateFormat) {
final DateFormat sdf = new SimpleDateFormat(dateFormat, Locale.getDefault());
return sdf.parse(dateStr);
}
According to the javadoc for SimpleDateFormat.parse(String), it
returns null in case of error, so no exception handling is needed.
Doubly wrong. SimpleDateFormat.parse(String, ParsePosition) returns
null, but DateFormat.parse(String) throws a ParseException. Worse,
the constructor for SimpleDateFormat throws an IllegalArgumentException
if the date format is invalid.
--
Jim Janney
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