On Wed, 22 May 2024 13:44:59 GMT, Chen Liang <li...@openjdk.org> wrote:

>> @liach I see such an opportunity in `Proxy.getProxyConstructor`, is that 
>> what you have in mind?
>
> No, I mean here: 
> https://github.com/openjdk/jdk/blob/4f1a10f84bcfadef263a0890b6834ccd3d5bb52f/src/java.base/share/classes/java/lang/Class.java#L1329
> 
> (That's also why I suggest putting the utiltiy method in ReflectionFactory 
> instead of AccessibleObject or Executable)
> 
> `Proxy` is meaningless with an empty list of interfaces, as it's solely for 
> implementing interfaces and delegating method calls to the given 
> InvocationHandler. So I would ignore that scenario.

Thanks.  Unfortunately the variable `cloneArray` is actually a method 
parameter, and most of the callers pass in `false` - so using this utility 
method to control cloning would actually introduce cloning in several places 
where it is explicitly avoided.  We may get a performance gain by modifying 
`Class.getInterfaces()` directly (the sole caller that passes `true`) then 
eliminating the parameter, then modifying each caller, etc. but that feels like 
a separate change inspired by this one.

Thoughts?

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PR Review Comment: https://git.openjdk.org/jdk/pull/19327#discussion_r1610079752

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