RFR: 8343984: Fix Unsafe address overflow

[Shaojin Wen]

On Tue, 12 Nov 2024 07:30:41 GMT, Shaojin Wen <swen at openjdk.org> wrote:

> In the JDK code, there are some places that may cause Unsafe offset overflow. The probability of occurrence is low, but if it occurs, it will cause JVM crash.

There are two other possible address overflow issues that are difficult to fix:

java.util.zip.CRC32C::updateBytes
jdk.internal.util.ArraysSupport::mismatch

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PR Comment: https://git.openjdk.org/jdk/pull/22027#issuecomment-2469804720