CFV: New JDK Committer: Ningsheng Jian

Andrew Haley aph at
Mon Jan 21 10:36:42 UTC 2019

I hereby nominate Ningsheng Jian (njian) to JDK Committer.

Ningsheng has contributed 16 fixes to the JDK, mostly AArch64 HotSpot related.

Votes are due before 17:00 PST (GMT-0800) on 2019-02-06.

Only current JDK Committers [1] are eligible to vote on this nomination.
Votes must be cast in the open by replying to this mailing list.

For Lazy Consensus voting instructions, see [2].

[1] -
[2] -



8158361: AArch64: Address calculation missed optimizations
8169697: AArch64: Vectorized MLA instruction not generated for some test cases
8172881: AArch64: assertion failure: the int pressure is incorrect
8173100: AArch64: -XX:-UseOnStackReplacement does not work together with -XX:+TieredCompilation
8179933: AArch64: Incorrect match rule for immL_255
8181633: Vectorization fails for some multiplication with constant cases
8182583: AArch64: FMA Vectorization on aarch64
8183533: AArch64: redundent registers saving in arraycopy stubs
8184049: AArch64: Matching rule for ubfiz
8185786: AArch64: disable some address reshapings.
8186325: AArch64: jtreg test hotspot/test/gc/g1/TestJNIWeakG1/ SEGV
8187022: AArch64: UBFX instructions have wrong format string
8191954: AArch64: disable UseCISCSpill in C2
8191955: AArch64: incorrect prefetch distance causes an internal error
8195588: AArch64: Codegen fix after JDK-8194256
8202186: AArch64: Debug build VM crashes with PrintC1Statistics option

Andrew Haley
Java Platform Lead Engineer
Red Hat UK Ltd. <>
EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671

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