Commit Graph

10 Commits

Author SHA1 Message Date
Martin Buchholz
a2f0fe3c94 8136583: Core libraries should use blessed modifier order
Run blessed-modifier-order script (see bug)

Reviewed-by: psandoz, chegar, alanb, plevart
2015-09-15 21:56:04 -07:00
Stuart Marks
9af3729cc7 8078463: TEST_BUG: optimize java/util/Map/Collisions.java
Reviewed-by: martin, chegar, dfuchs
2015-05-14 13:52:05 -07:00
Lana Steuck
657b9db1ba 8029235: Update copyright year to match last edit in jdk8 jdk repository for 2013
Updated files with 2011, 2012 and 2013 years according to the file's last updated date

Reviewed-by: tbell, lancea, chegar
2013-12-26 12:04:16 -08:00
Brent Christian
276b809ff4 8024009: Remove jdk.map.useRandomSeed system property
Removed usage of hashSeed in Hashtable & WeakHashMap, and removed tests

Reviewed-by: alanb, mduigou
2013-09-12 14:22:53 -07:00
Brent Christian
53a90d216f 8005698: Handle Frequent HashMap Collisions with Balanced Trees
HashMap bins with many collisions store entries in balanced trees

Reviewed-by: alanb, dl, mduigou
2013-06-04 10:04:28 +01:00
Mike Duigou
1e3c417915 7199249: TEST_BUG : Add /othervm to Collisions.java @run main with -D definitions
Reviewed-by: alanb
2012-09-18 11:04:12 -07:00
Mike Duigou
25570f8d69 7198988: re-order paramaters for Collision.java @run
Reviewed-by: alanb
2012-09-17 11:36:10 -07:00
Mike Duigou
bb1c4324e9 7189926: Reduce test size for default run. Add additional run enabling alternative hashing
Reviewed-by: alanb
2012-09-11 07:42:02 -07:00
Mike Duigou
36dbbfde4b 7175758: Improve unit test of Map iterators and Iterator.remove()
Adds additional tests of Map iterators and Iterator.remove()

Reviewed-by: lancea
2012-06-15 13:01:38 -07:00
Mike Duigou
705c53b045 7126277: Alternative String hashing implementation
All of the hashing based Map implementations: HashMap, Hashtable, LinkedHashMap, WeakHashMap and ConcurrentHashMap are modified to use an enhanced hashing algorithm for string keys when the capacity of the hash table has ever grown beyond 512 entries. The enhanced hashing implementation uses the murmur3 hashing algorithm along with random hash seeds and index masks. These enhancements mitigate cases where colliding String hash values could result in a performance bottleneck.

Reviewed-by: alanb, forax, dl
2012-05-30 22:18:37 -07:00