java.util.HashMap

Collision Ratio	# Objects	Shallow Heap	Retained Heap
<= 0.00 First 10 of 1,665 objects	1,665	79,920	>= 562,160
<= 0.20 First 10 of 17,449 objects	17,449	837,552	>= 27,484,072
<= 0.40 First 10 of 883 objects	883	42,384	>= 3,151,768
<= 0.60 All 3 objects	3	144	>= 480
Total: 4 entries	20,000	960,000

java.util.LinkedHashMap

Collision Ratio	# Objects	Shallow Heap	Retained Heap
<= 0.00 First 10 of 4,547 objects	4,547	254,632	>= 14,427,016
<= 0.20 First 10 of 116 objects	116	6,496	>= 2,075,216
<= 0.40 First 10 of 510 objects	510	28,560	>= 1,940,168
<= 0.60 First 10 of 111 objects	111	6,216	>= 494,192
<= 0.80	1	56	272
Total: 5 entries	5,285	295,960

java.util.LinkedHashSet

Collision Ratio	# Objects	Shallow Heap	Retained Heap
<= 0.00 First 10 of 978 objects	978	15,648	>= 13,620,592
<= 0.20 First 10 of 81 objects	81	1,296	>= 1,573,648
<= 0.40 First 10 of 161 objects	161	2,576	>= 699,016
<= 0.60 First 10 of 27 objects	27	432	>= 8,872
<= 0.80	1	16	288
Total: 5 entries	1,248	19,968

java.util.concurrent.ConcurrentHashMap

Collision Ratio	# Objects	Shallow Heap	Retained Heap
<= 0.00 First 10 of 177 objects	177	11,328	>= 57,192
<= 0.20 First 10 of 27 objects	27	1,728	>= 60,432
<= 0.40 All 6 objects	6	384	>= 569,520
<= 0.60	1	64	1,168
Total: 4 entries	211	13,504

java.util.Collections$SynchronizedMap

Collision Ratio	# Objects	Shallow Heap	Retained Heap
<= 0.00 All 3 objects	3	96	>= 664
<= 0.20	1	32	1,408
<= 0.40 All 7 objects	7	224	>= 116,920
Total: 3 entries	11	352

java.util.HashMap$EntrySet

Collision Ratio	# Objects	Shallow Heap	Retained Heap
<= 0.00 First 10 of 6,250 objects	6,250	100,000	>= 100,000
<= 0.20	1	16	16
<= 0.40 First 10 of 11 objects	11	176	>= 176
<= 0.60 All 3 objects	3	48	>= 48
Total: 4 entries	6,265	100,240

java.util.Hashtable

Collision Ratio	# Objects	Shallow Heap	Retained Heap
<= 0.00 All 2 objects	2	96	>= 224
<= 0.40	1	48	63,960
Total: 2 entries	3	144

java.util.HashSet

Collision Ratio	# Objects	Shallow Heap	Retained Heap
<= 0.00 First 10 of 21 objects	21	336	>= 22,840
<= 0.40 All 2 objects	2	32	>= 1,784
Total: 2 entries	23	368

java.util.LinkedHashMap$LinkedKeySet

Collision Ratio	# Objects	Shallow Heap	Retained Heap
<= 0.00 First 10 of 689 objects	689	11,024	>= 11,024
<= 0.20 First 10 of 61 objects	61	976	>= 976
<= 0.40 First 10 of 101 objects	101	1,616	>= 1,616
<= 0.60 First 10 of 12 objects	12	192	>= 192
<= 0.80	1	16	16
Total: 5 entries	864	13,824

java.util.Collections$UnmodifiableSet

Collision Ratio	# Objects	Shallow Heap	Retained Heap
<= 0.00 All 6 objects	6	96	>= 952
<= 0.40	1	16	736
Total: 2 entries	7	112

java.util.Collections$SynchronizedSet

java.util.LinkedHashMap$LinkedEntrySet

Collision Ratio	# Objects	Shallow Heap	Retained Heap
<= 0.00 First 10 of 15 objects	15	240	>= 240
<= 0.20 All 4 objects	4	64	>= 64
<= 0.40 All 10 objects	10	160	>= 160
Total: 3 entries	29	464

java.util.Properties

java.util.HashMap$KeySet

java.util.WeakHashMap

java.util.concurrent.ConcurrentHashMap$EntrySetView

Collision Ratio	# Objects	Shallow Heap	Retained Heap
<= 0.00 All 3 objects	3	48	>= 48
<= 0.20 All 2 objects	2	32	>= 32
Total: 2 entries	5	80

java.util.Collections$UnmodifiableMap