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8032606: ClassValue.ClassValueMap.type is unused

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Reviewed-by: jrose, vlivanov
This commit is contained in:
Christian Thalinger 2014-05-16 09:20:56 -07:00
parent 4bb7d28843
commit 3a555f0516
1 changed files with 6 additions and 9 deletions
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15
jdk/src/share/classes/java/lang/ClassValue.java
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@ -25,7 +25,6 @@
package java.lang;
import java.lang.ClassValue.ClassValueMap;
import java.util.WeakHashMap;
import java.lang.ref.WeakReference;
import java.util.concurrent.atomic.AtomicInteger;
@ -375,10 +374,10 @@ public abstract class ClassValue<T> {
synchronized (CRITICAL_SECTION) { // private object to avoid deadlocks
// happens about once per type
if ((map = type.classValueMap) == null)
type.classValueMap = map = new ClassValueMap(type);
}
return map;
type.classValueMap = map = new ClassValueMap();
}
return map;
}
static <T> Entry<T> makeEntry(Version<T> explicitVersion, T value) {
// Note that explicitVersion might be different from this.version.
@ -398,12 +397,11 @@ public abstract class ClassValue<T> {
// The following class could also be top level and non-public:
/** A backing map for all ClassValues, relative a single given type.
/** A backing map for all ClassValues.
* Gives a fully serialized "true state" for each pair (ClassValue cv, Class type).
* Also manages an unserialized fast-path cache.
*/
static class ClassValueMap extends WeakHashMap<ClassValue.Identity, Entry<?>> {
private final Class<?> type;
private Entry<?>[] cacheArray;
private int cacheLoad, cacheLoadLimit;
@ -413,11 +411,10 @@ public abstract class ClassValue<T> {
*/
private static final int INITIAL_ENTRIES = 32;
/** Build a backing map for ClassValues, relative the given type.
/** Build a backing map for ClassValues.
* Also, create an empty cache array and install it on the class.
*/
ClassValueMap(Class<?> type) {
this.type = type;
ClassValueMap() {
sizeCache(INITIAL_ENTRIES);
}