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8215648: remove equals and hashCode implementations from j.l.i.VarHandle

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Reviewed-by: mchung
This commit is contained in:
Vicente Romero 2019-01-11 09:02:44 -05:00
parent 8243e7f9fa
commit 0032475ef1
19 changed files with 19 additions and 126 deletions
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31
src/java.base/share/classes/java/lang/invoke/VarHandle.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2014, 2019, 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
@ -1864,35 +1864,6 @@ public abstract class VarHandle implements Constable {
}
}
/**
* Compare this {@linkplain VarHandle} with another object for equality.
* Two {@linkplain VarHandle}s are considered equal if they both describe the
* same instance field, both describe the same static field, both describe
* array elements for arrays with the same component type, or both describe
* the same component of an off-heap structure.
*
* @param o the other object
* @return Whether this {@linkplain VarHandle} is equal to the other object
*/
@Override
public final boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
VarHandle that = (VarHandle) o;
return accessModeType(AccessMode.GET).equals(that.accessModeType(AccessMode.GET)) &&
internalEquals(that);
}
abstract boolean internalEquals(VarHandle vh);
@Override
public final int hashCode() {
return 31 * accessModeType(AccessMode.GET).hashCode() + internalHashCode();
}
abstract int internalHashCode();
/**
* Returns a compact textual description of this {@linkplain VarHandle},
* including the type of variable described, and a description of its coordinates.