[lworld] RFR: 8281116: [lworld] Adding Preload attribute support

[Harold Seigel]

On Wed, 2 Feb 2022 13:12:19 GMT, Frederic Parain <fparain at openjdk.org> wrote:

> Please review this changeset adding support for the Preload attribute.
> It includes a logging feature to track and diagnose those optimistic class loading.
> 
> Tested with Mach5 tier1.
> 
> Thank you,
> 
> Fred

test/hotspot/jtreg/runtime/valhalla/inlinetypes/ValuePreloadTest.java line 61:

> 59:         checkFor(pb, "[warning][class,preload] Preloading of class PreloadValue1 during linking of class ValuePreloadClient1 (Preload attribute) failed");
> 60:     }
> 61: }

The test looks good but have multipe 2022's in the copyright:
 * Copyright (c) 2022, 2022, Oracle and/or its affiliates. All rights reserved.

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PR: https://git.openjdk.java.net/valhalla/pull/623