Android/frameworks_base
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Do not preload ThreadLocalRandom class.

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ThreadLocalRandom.seeder field uses time in its initialization.
Preloading the class fixes initial state of ThreadLocalRandom,
which leads to the same sequence of generated numbers across
different app runs.

Bug: 234816154
Test: verified manually that TLR.current().nextInt does not return
the same sequence of numbers.

Change-Id: I80868217e02862e8d0a568ea096e22e919ec06e3
Merged-In: I80868217e02862e8d0a568ea096e22e919ec06e3
This commit is contained in:
Almaz Mingaleev
2022-06-09 11:54:28 +01:00
parent 089c119f4d
commit 2a1c933d3e
2 changed files with 1 additions and 2 deletions
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2
config/preloaded-classes
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@@ -12999,8 +12999,6 @@ java.util.concurrent.SynchronousQueue$TransferStack
java.util.concurrent.SynchronousQueue$Transferer
java.util.concurrent.SynchronousQueue
java.util.concurrent.ThreadFactory
java.util.concurrent.ThreadLocalRandom$1
java.util.concurrent.ThreadLocalRandom
java.util.concurrent.ThreadPoolExecutor$AbortPolicy
java.util.concurrent.ThreadPoolExecutor$DiscardPolicy
java.util.concurrent.ThreadPoolExecutor$Worker

1
config/preloaded-classes-denylist
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@@ -8,3 +8,4 @@ gov.nist.core.net.DefaultNetworkLayer
android.net.rtp.AudioGroup
android.net.rtp.AudioStream
android.net.rtp.RtpStream
java.util.concurrent.ThreadLocalRandom