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Fix CronExpression roll-forward issue

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This commit makes sure that BitsCronField rolls the date forward in
cases where we cannot find a next bit to elapse to.

Closes: gh-26964
This commit is contained in:
Arjen Poutsma
2021-05-26 16:45:52 +02:00
parent 1e2e114e3c
commit 4203e90655
2 changed files with 29 additions and 1 deletions
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7
spring-context/src/main/java/org/springframework/scheduling/support/BitsCronField.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2020 the original author or authors.
* Copyright 2002-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -192,6 +192,11 @@ final class BitsCronField extends CronField {
while (current != next && count++ < CronExpression.MAX_ATTEMPTS) {
temporal = type().elapseUntil(temporal, next);
current = type().get(temporal);
next = nextSetBit(current);
if (next == -1) {
temporal = type().rollForward(temporal);
next = nextSetBit(0);
}
}
if (count >= CronExpression.MAX_ATTEMPTS) {
return null;