weblogic的8G内存快用完了，无法动弹。最后我打出了堆的快照文本版，发现这个类的实例数如下：
1676170 53637440 org.hibernate.dialect.function.StandardSQLFunction
请问这是hibernate导致的内存泄露吗？
截了heap前面一段如下：
num #instances #bytes class name
1: 15204922 1976686888 [C
2: 14829022 711793056 java.util.HashMap$Entry
3: 3639041 624496040 [Ljava.util.HashMap$Entry;
4: 14928211 597128440 java.lang.String
5: 15849568 547661280 [Ljava.lang.String;
6: 3063227 236661312 [I
7: 3541079 226629056 java.util.HashMap
8: 3298829 158343792 java.util.Hashtable$Entry
9: 1236719 158300032 java.lang.reflect.Field
10: 2111606 151391384 [Ljava.lang.Object;
11: 4245281 138673976 [Z
12: 5367001 128808024 java.lang.Integer
13: 1639686 117194176 [[Ljava.lang.String;
14: 697296 105988992 java.lang.reflect.Method
15: 384938 94193368 [B
16: 96722 85889136 org.hibernate.persister.entity.SingleTableEntityPersister
17: 483610 81246480 org.hibernate.loader.entity.EntityLoader
18: 102502 76745048 [Lorg.apache.commons.collections.map.AbstractHashedMap$HashEntry;
19: 511824 71447968
20: 511824 69621248
21: 102876 61305040 [Ljava.util.Hashtable$Entry;
22: 49904 54155264
23: 1676170 53637440 org.hibernate.dialect.function.StandardSQLFunction
24: 677054 48747888 org.hibernate.loader.DefaultEntityAliases
25: 741427 47451328 org.hibernate.tuple.StandardProperty
26: 49904 39234016
27: 491828 35411616 org.hibernate.event.FlushEntityEvent
28: 838169 33526760 org.hibernate.property.Dom4jAccessor$ElementGetter
29: 40434 31074368
30: 193444 30951040 org.hibernate.loader.entity.CascadeEntityLoader
31: 838169 26821408 org.hibernate.property.Dom4jAccessor$ElementSetter
32: 290196 24759432 [Lorg.hibernate.property.Getter;
33: 290196 24759432 [Lorg.hibernate.property.Setter;
34: 431149 24695944
35: 96722 23213280 org.hibernate.tuple.entity.EntityMetamodel
36: 580122 23204880 org.hibernate.property.DirectPropertyAccessor$DirectSetter
37: 580122 23204880 org.hibernate.property.DirectPropertyAccessor$DirectGetter
38: 694792 22148992 [Ljava.lang.Class;
39: 677054 21665728 [Lorg.hibernate.loader.EntityAliases;
40: 677054 21665728 [Lorg.hibernate.type.EntityType;
41: 677054 21665728 [Lorg.hibernate.LockMode;
42: 677054 21665728 [Lorg.hibernate.persister.entity.Loadable;
43: 423055 20306640 java.util.concurrent.ConcurrentHashMap$HashEntry
44: 838169 20116056 org.hibernate.property.MapAccessor$MapSetter
45: 838169 20116056 org.hibernate.property.MapAccessor$MapGetter
46: 310800 19891200 java.util.LinkedHashMap$Entry
47: 491930 19677200 org.hibernate.engine.Cascade
48: 348729 19528824 java.io.ObjectStreamClass$WeakClassKey
49: 322340 18051040 org.hibernate.dialect.function.SQLFunctionTemplate
50: 280441 17948224 java.util.TreeMap$Entry
51: 207351 17719760 [[I
52: 204879 17477912 [[Z
53: 540236 17287552 org.hibernate.util.IdentityMap$IdentityMapEntry
