RFR: 8297822: De-duplicate code in module jdk.sctp
Roger Riggs
rriggs at openjdk.org
Wed Nov 30 18:45:17 UTC 2022
On Wed, 30 Nov 2022 16:54:02 GMT, Per Minborg <pminborg at openjdk.org> wrote:
> This PR proposes merging logic and optimising three classes that exist for aix, maces and windows.
>
> Optimisation will reduce byte code. Below is an example for one of the many methods optimised.
>
> Before:
>
> public void implCloseSelectableChannel() throws java.io.IOException;
> Code:
> 0: new #7 // class java/lang/UnsupportedOperationException
> 3: dup
> 4: ldc #11 // String SCTP not supported on this platform
> 6: invokespecial #13 // Method java/lang/UnsupportedOperationException."<init>":(Ljava/lang/String;)V
> 9: athrow
>
>
> After:
>
> public void implCloseSelectableChannel() throws java.io.IOException;
> Code:
> 0: invokestatic #16 // Method sun/nio/ch/sctp/UnsupportedUtil.sctpUnsupported:()Ljava/lang/UnsupportedOperationException;
> 3: athrow
src/jdk.sctp/macosx/classes/sun/nio/ch/sctp/SctpChannelImpl.java line 2:
> 1: /*
> 2: * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
Please check the copyrights (2022), some look like they went back in time.
-------------
PR: https://git.openjdk.org/jdk/pull/11436
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