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7165102: Only run assertion on Integer autoboxing cache size once

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Reviewed-by: darcy, alanb
This commit is contained in:
Rémi Forax 2012-05-02 20:01:59 +01:00
parent 43ef89d4a6
commit 05ffd97b08
1 changed files with 3 additions and 1 deletions
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4
jdk/src/share/classes/java/lang/Integer.java
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@ -780,6 +780,9 @@ public final class Integer extends Number implements Comparable<Integer> {
int j = low; int j = low;
for(int k = 0; k < cache.length; k++) for(int k = 0; k < cache.length; k++)
cache[k] = new Integer(j++); cache[k] = new Integer(j++);
// range [-128, 127] must be interned (JLS7 5.1.7)
assert IntegerCache.high >= 127;
} }
private IntegerCache() {} private IntegerCache() {}
@ -801,7 +804,6 @@ public final class Integer extends Number implements Comparable<Integer> {
* @since 1.5 * @since 1.5
*/ */
public static Integer valueOf(int i) { public static Integer valueOf(int i) {
assert IntegerCache.high >= 127;
if (i >= IntegerCache.low && i <= IntegerCache.high) if (i >= IntegerCache.low && i <= IntegerCache.high)
return IntegerCache.cache[i + (-IntegerCache.low)]; return IntegerCache.cache[i + (-IntegerCache.low)];
return new Integer(i); return new Integer(i);