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Fix ConcurrentReferenceHashMap max constraints

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Update calculateShift to respect the maximum upper bound as well as the
minimum value.

Issue: SPR-11720
This commit is contained in:
HejiaHo
2014-04-14 23:17:14 +08:00
committed by Phillip Webb
parent 5559209233
commit 16410cad4d
1 changed files with 1 additions and 1 deletions
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spring-core/src/main/java/org/springframework/util/ConcurrentReferenceHashMap.java
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@@ -387,7 +387,7 @@ public class ConcurrentReferenceHashMap<K, V> extends AbstractMap<K, V> implemen
protected static int calculateShift(int minimumValue, int maximumValue) { protected static int calculateShift(int minimumValue, int maximumValue) {
int shift = 0; int shift = 0;
int value = 1; int value = 1;
while (value < minimumValue && value < minimumValue) { while (value < minimumValue && value < maximumValue) {
value <<= 1; value <<= 1;
shift++; shift++;
} }