java.util.HashMap

Length	# Objects	Shallow Heap	Retained Heap
16 First 10 of 25,544 objects	25,544	1,226,112	>= 17,983,232
0 First 10 of 7,691 objects	7,691	369,168	>= 389,216
1 First 10 of 5,182 objects	5,182	248,736	>= 1,356,016
4 First 10 of 2,581 objects	2,581	123,888	>= 580,376
3 First 10 of 2,026 objects	2,026	97,248	>= 390,544
2 First 10 of 1,754 objects	1,754	84,192	>= 267,368
24 First 10 of 1,119 objects	1,119	53,712	>= 1,074,528
5 All 8 objects	8	384	>= 6,208
6 All 7 objects	7	336	>= 4,272
8 All 6 objects	6	288	>= 2,544
9 All 5 objects	5	240	>= 1,073,240
123 All 3 objects	3	144	>= 15,072
11 All 2 objects	2	96	>= 1,704
19 All 2 objects	2	96	>= 7,392
33 All 2 objects	2	96	>= 8,176
116 All 2 objects	2	96	>= 17,040
122 All 2 objects	2	96	>= 9,984
13	1	48	608
14	1	48	656
21	1	48	864
27	1	48	5,672
39	1	48	5,248
43	1	48	1,696
49	1	48	17,136
85	1	48	113,040
Total: 25 of 34 entries; 9 more	45,953	2,205,744

java.util.ArrayList

Length	# Objects	Shallow Heap	Retained Heap
1 First 10 of 21,080 objects	21,080	505,920	>= 3,497,920
2 First 10 of 14,032 objects	14,032	336,768	>= 3,764,624
3 First 10 of 13,024 objects	13,024	312,576	>= 4,929,600
0 First 10 of 7,476 objects	7,476	179,424	>= 179,424
4 First 10 of 1,659 objects	1,659	39,816	>= 788,608
5 First 10 of 1,626 objects	1,626	39,024	>= 778,984
11 First 10 of 1,050 objects	1,050	25,200	>= 1,607,880
10 First 10 of 896 objects	896	21,504	>= 1,269,792
6 First 10 of 855 objects	855	20,520	>= 508,968
15 First 10 of 456 objects	456	10,944	>= 936,704
12 First 10 of 341 objects	341	8,184	>= 559,040
18 First 10 of 301 objects	301	7,224	>= 750,496
9 First 10 of 285 objects	285	6,840	>= 357,712
17 First 10 of 214 objects	214	5,136	>= 189,112
19 First 10 of 170 objects	170	4,080	>= 435,288
8 First 10 of 168 objects	168	4,032	>= 129,424
16 First 10 of 123 objects	123	2,952	>= 261,312
7 First 10 of 97 objects	97	2,328	>= 15,080
59 First 10 of 21 objects	21	504	>= 7,056
60 First 10 of 13 objects	13	312	>= 4,368
20 All 10 objects	10	240	>= 21,808
35 All 8 objects	8	192	>= 1,920
61 All 8 objects	8	192	>= 2,688
58 All 7 objects	7	168	>= 2,352
62 All 7 objects	7	168	>= 2,352
Total: 25 of 78 entries; 53 more	64,054	1,537,296

java.util.LinkedHashMap

Length	# Objects	Shallow Heap	Retained Heap
1 First 10 of 3,000 objects	3,000	168,000	>= 4,990,480
0 First 10 of 836 objects	836	46,816	>= 46,928
2 First 10 of 320 objects	320	17,920	>= 2,487,096
17 First 10 of 141 objects	141	7,896	>= 143,760
3 First 10 of 134 objects	134	7,504	>= 1,032,896
4 First 10 of 131 objects	131	7,336	>= 1,354,032
5 First 10 of 110 objects	110	6,160	>= 1,426,904
9 First 10 of 87 objects	87	4,872	>= 690,096
6 First 10 of 73 objects	73	4,088	>= 920,296
7 First 10 of 50 objects	50	2,800	>= 588,016
8 First 10 of 26 objects	26	1,456	>= 373,360
10 First 10 of 22 objects	22	1,232	>= 201,328
59 First 10 of 21 objects	21	1,176	>= 61,824
11 First 10 of 14 objects	14	784	>= 104,656
60 First 10 of 13 objects	13	728	>= 38,792
35 All 9 objects	9	504	>= 36,496
36 All 9 objects	9	504	>= 49,064
12 All 8 objects	8	448	>= 98,560
13 All 8 objects	8	448	>= 68,744
16 All 8 objects	8	448	>= 95,504
38 All 8 objects	8	448	>= 47,936
61 All 8 objects	8	448	>= 24,192
20 All 7 objects	7	392	>= 72,984
58 All 7 objects	7	392	>= 20,328
62 All 7 objects	7	392	>= 21,448
Total: 25 of 121 entries; 96 more	5,285	295,960

java.util.LinkedHashSet

Length	# Objects	Shallow Heap	Retained Heap
1 First 10 of 442 objects	442	7,072	>= 4,276,872
2 First 10 of 182 objects	182	2,912	>= 2,401,456
3 First 10 of 105 objects	105	1,680	>= 1,012,080
5 First 10 of 104 objects	104	1,664	>= 1,415,128
4 First 10 of 100 objects	100	1,600	>= 1,310,400
6 First 10 of 69 objects	69	1,104	>= 913,512
7 First 10 of 48 objects	48	768	>= 579,152
8 First 10 of 26 objects	26	416	>= 373,776
9 First 10 of 20 objects	20	320	>= 306,160
10 All 10 objects	10	160	>= 137,104
0 All 5 objects	5	80	>= 408
20 All 5 objects	5	80	>= 71,064
11 All 4 objects	4	64	>= 35,280
12 All 4 objects	4	64	>= 68,384
19 All 4 objects	4	64	>= 69,856
28 All 4 objects	4	64	>= 71,840
30 All 4 objects	4	64	>= 39,200
82 All 4 objects	4	64	>= 49,120
13 All 3 objects	3	48	>= 35,088
15 All 3 objects	3	48	>= 35,360
21 All 3 objects	3	48	>= 36,176
32 All 3 objects	3	48	>= 37,928
47 All 3 objects	3	48	>= 39,968
57 All 3 objects	3	48	>= 46,392
293 All 3 objects	3	48	>= 41,568
Total: 25 of 78 entries; 53 more	1,248	19,968

java.util.concurrent.ConcurrentHashMap

Length	# Objects	Shallow Heap	Retained Heap
0 First 10 of 68 objects	68	4,352	>= 4,400
1 First 10 of 64 objects	64	4,096	>= 19,416
12 First 10 of 29 objects	29	1,856	>= 21,360
13 First 10 of 12 objects	12	768	>= 10,896
14 All 8 objects	8	512	>= 6,624
18 All 5 objects	5	320	>= 4,928
3 All 4 objects	4	256	>= 1,488
17 All 4 objects	4	256	>= 3,744
19 All 3 objects	3	192	>= 3,120
20 All 3 objects	3	192	>= 3,408
2 All 2 objects	2	128	>= 768
11	1	64	512
23	1	64	1,264
27	1	64	12,648
32	1	64	1,696
36	1	64	8,696
72	1	64	60,432
314	1	64	17,200
535	1	64	83,512
2,707	1	64	445,768
Total: 20 entries	211	13,504

java.util.LinkedList

Length	# Objects	Shallow Heap	Retained Heap
1 First 10 of 1,389 objects	1,389	44,448	>= 517,584
5 All 6 objects	6	192	>= 1,696
0 All 3 objects	3	96	>= 96
2 All 2 objects	2	64	>= 160
4	1	32	128
Total: 5 entries	1,401	44,832

java.util.Collections$SynchronizedMap

Length	# Objects	Shallow Heap	Retained Heap
1 All 2 objects	2	64	>= 584
6 All 2 objects	2	64	>= 1,048
116 All 2 objects	2	64	>= 17,104
0	1	32	80
33	1	32	1,408
179	1	32	17,056
180	1	32	7,184
348	1	32	74,528
Total: 8 entries	11	352

java.util.HashMap$EntrySet

Length	# Objects	Shallow Heap	Retained Heap
1 First 10 of 4,909 objects	4,909	78,544	>= 78,544
0 First 10 of 1,241 objects	1,241	19,856	>= 19,856
2 First 10 of 98 objects	98	1,568	>= 1,568
3 All 9 objects	9	144	>= 144
4 All 5 objects	5	80	>= 80
24 All 2 objects	2	32	>= 32
14	1	16	16
Total: 7 entries	6,265	100,240

java.util.Hashtable

Length	# Objects	Shallow Heap	Retained Heap
0 All 2 objects	2	96	>= 224
535	1	48	63,960
Total: 2 entries	3	144

java.util.HashSet

Length	# Objects	Shallow Heap	Retained Heap
0 First 10 of 13 objects	13	208	>= 848
1 All 8 objects	8	128	>= 21,992
11	1	16	1,064
16	1	16	720
Total: 4 entries	23	368

java.util.Vector

Length	# Objects	Shallow Heap	Retained Heap
1 All 2 objects	2	64	>= 176
2,726	1	32	20,528
Total: 2 entries	3	96

java.util.LinkedHashMap$LinkedKeySet

Length	# Objects	Shallow Heap	Retained Heap
1 First 10 of 258 objects	258	4,128	>= 4,128
2 First 10 of 146 objects	146	2,336	>= 2,336
5 First 10 of 84 objects	84	1,344	>= 1,344
4 First 10 of 78 objects	78	1,248	>= 1,248
3 First 10 of 60 objects	60	960	>= 960
6 First 10 of 54 objects	54	864	>= 864
7 First 10 of 34 objects	34	544	>= 544
8 First 10 of 22 objects	22	352	>= 352
9 First 10 of 18 objects	18	288	>= 288
10 All 8 objects	8	128	>= 128
12 All 4 objects	4	64	>= 64
19 All 4 objects	4	64	>= 64
20 All 4 objects	4	64	>= 64
28 All 4 objects	4	64	>= 64
0 All 3 objects	3	48	>= 48
36 All 3 objects	3	48	>= 48
11 All 2 objects	2	32	>= 32
13 All 2 objects	2	32	>= 32
14 All 2 objects	2	32	>= 32
15 All 2 objects	2	32	>= 32
16 All 2 objects	2	32	>= 32
21 All 2 objects	2	32	>= 32
25 All 2 objects	2	32	>= 32
30 All 2 objects	2	32	>= 32
32 All 2 objects	2	32	>= 32
Total: 25 of 57 entries; 32 more	864	13,824

java.util.Collections$UnmodifiableSet

Length	# Objects	Shallow Heap	Retained Heap
1 All 5 objects	5	80	>= 848
0	1	16	104
16	1	16	736
Total: 3 entries	7	112

java.util.Collections$SynchronizedSet

java.util.LinkedHashMap$LinkedEntrySet

Length	# Objects	Shallow Heap	Retained Heap
1 First 10 of 11 objects	11	176	>= 176
5 All 2 objects	2	32	>= 32
10 All 2 objects	2	32	>= 32
0	1	16	16
2	1	16	16
3	1	16	16
4	1	16	16
6	1	16	16
7	1	16	16
13	1	16	16
15	1	16	16
30	1	16	16
36	1	16	16
47	1	16	16
70	1	16	16
175	1	16	16
492	1	16	16
Total: 17 entries	29	464

java.util.LinkedHashMap$LinkedValues

Length	# Objects	Shallow Heap	Retained Heap
1 First 10 of 13 objects	13	208	>= 208
0 All 3 objects	3	48	>= 48
4	1	16	16
Total: 3 entries	17	272

java.util.Properties

java.util.HashMap$KeySet

Length	# Objects	Shallow Heap	Retained Heap
0 All 6 objects	6	96	>= 96
2 All 5 objects	5	80	>= 80
1	1	16	16
Total: 3 entries	12	192

java.util.WeakHashMap

java.util.Arrays$ArrayList

Length	# Objects	Shallow Heap	Retained Heap
2	1	24	48
4	1	24	56
Total: 2 entries	2	48

java.util.concurrent.ConcurrentHashMap$EntrySetView

Length	# Objects	Shallow Heap	Retained Heap
1	1	16	16
3	1	16	16
11	1	16	16
13	1	16	16
17	1	16	16
Total: 5 entries	5	80

java.util.Collections$UnmodifiableMap

java.util.HashMap$Values

Length	# Objects	Shallow Heap	Retained Heap
1 All 2 objects	2	32	>= 32
0	1	16	16
85	1	16	16
Total: 3 entries	4	64

java.util.ImmutableCollections$SetN

java.util.concurrent.CopyOnWriteArrayList

java.util.ArrayDeque

java.util.Collections$SingletonList

java.util.Collections$UnmodifiableCollection