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8186958: Need method to create pre-sized HashMap

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Reviewed-by: chegar, naoto, joehw, lancea, wetmore, smarks
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XenoAmess 2022-04-19 00:03:56 +00:00 • committed by Stuart Marks
parent 41fc078323
commit 87faa85c59
30 changed files with 208 additions and 73 deletions
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4
src/java.base/share/classes/java/lang/invoke/MethodHandleImpl.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2021, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2008, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -290,7 +290,7 @@ abstract class MethodHandleImpl {
BoundMethodHandle mh = target.rebind();
// Match each unique conversion to the positions at which it is to be applied
var convSpecMap = new HashMap<Object, int[]>(((4 * convCount) / 3) + 1);
HashMap<Object, int[]> convSpecMap = HashMap.newHashMap(convCount);
for (int i = 0; i < convSpecs.length - MH_RECEIVER_OFFSET; i++) {
Object convSpec = convSpecs[i];
if (convSpec == null) continue;