From: @hwhewei
Reviewed-by: @ginfung,@zh_qh
Signed-off-by: @zh_qh

From: @woshixiaoli
Reviewed-by: @liangchenghui,@chujinjin
Signed-off-by: @liangchenghui

From: @chenlei_autodiff
Reviewed-by: 
Signed-off-by:

Fix 'Useless super delegation in method __init__';
Also fix class naming problem.

From: @woshixiaoli
Reviewed-by: @zh_qh,@hwhewei
Signed-off-by: @zh_qh

From: @jonyguo
Reviewed-by: @liucunwei,@heleiwang
Signed-off-by: @liucunwei

From: @fangzehua
Reviewed-by: @wuxuejian,@liangchenghui
Signed-off-by: @wuxuejian

From: @hfarahat
Reviewed-by: @robingrosman,@mikef
Signed-off-by: @robingrosman

From: @lixiachen
Reviewed-by: @robingrosman,@mikef
Signed-off-by: @robingrosman

From: @cathwong
Reviewed-by: @robingrosman,@mikef
Signed-off-by: @robingrosman

From: @huangbingjian
Reviewed-by: @zh_qh,@ginfung
Signed-off-by: @zh_qh

From: @wenfangpei
Reviewed-by: @gaoxiong1,@anyrenwei
Signed-off-by: @anyrenwei

From: @woshixiaoli
Reviewed-by: @zichun_ye,@sunnybeike
Signed-off-by: @zichun_ye

1- access out of bound memory in toFlatIndex
2- CreateFromNPArray function is 50>
3- duplicate variable init

From: @majianwei_hvv
Reviewed-by: @wuxuejian,@liangchenghui
Signed-off-by: @wuxuejian

From: @Margaret_wangrui
Reviewed-by: @ginfung,@zh_qh
Signed-off-by: @zh_qh

Turn off lock only after all data is cached

From: @alexyuyue
Reviewed-by: 
Signed-off-by:

From: @chenfei52
Reviewed-by: @ginfung
Signed-off-by:

From: @luoyang42
Reviewed-by: @heleiwang,@liucunwei
Signed-off-by: @liucunwei

add testcases 2

Signed-off-by: alex-yuyue <yue.yu1@huawei.com>

From: @huangbingjian
Reviewed-by: 
Signed-off-by:

From: @luoyang42
Reviewed-by: @heleiwang,@liucunwei
Signed-off-by: @liucunwei

From: @anancds
Reviewed-by: @limingqi107
Signed-off-by:

From: @hfarahat
Reviewed-by: @pandoublefeng,@robingrosman
Signed-off-by: @pandoublefeng

From: @wenfangpei
Reviewed-by: @anyrenwei,@gaoxiong1,@gaoxiong1
Signed-off-by: @anyrenwei

From: @yanglf1121
Reviewed-by: @kisnwang,@kingxian
Signed-off-by: @kingxian

From: @lingyunli63
Reviewed-by: @gaoxiong1,@ckey_dou
Signed-off-by: @ckey_dou

From: @huangbingjian
Reviewed-by: @ginfung,@zh_qh
Signed-off-by: @zh_qh

From: @alexyuyue
Reviewed-by: 
Signed-off-by:

From: @hfarahat
Reviewed-by: 
Signed-off-by:

From: @yao_yf
Reviewed-by: 
Signed-off-by: