> UUID is very important class that is used to track identities of objects in > large scale systems. Yet, the coverage in JDK test is disappointing: it tests > only 100 of UUID instances per test, which is way too small to detect > collisions due to the bad randomness for example. > > I have some pending work to improve UUID performance, and tests should be > improved. > > The improved test still runs in less than 5 seconds on my laptop.
Aleksey Shipilev has updated the pull request incrementally with one additional commit since the last revision: Collect collisions and report them once at the end ------------- Changes: - all: https://git.openjdk.org/jdk/pull/14134/files - new: https://git.openjdk.org/jdk/pull/14134/files/48d6bc5c..40aa3118 Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=14134&range=02 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14134&range=01-02 Stats: 30 lines in 1 file changed: 27 ins; 0 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/14134.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/14134/head:pull/14134 PR: https://git.openjdk.org/jdk/pull/14134
