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by irogers
1798 days ago
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It can catch people by surprise that Java's narrowing conversions may not preserve the sign. For example, the following is broken: class TimestampedObject implements Comparable<TimestampedObject> {
long timestamp;
int compareTo(TimestampedObject other) {
return (int)(timestamp - other.timestamp);
}
...
} ErrorProne catches this: https://errorprone.info/bugpattern/BadComparable |
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