RFR: 8333639: ubsan: cppVtables.cpp:81:55: runtime error: index 14 out of bounds for type 'long int [1]'

Mon Jun 10 11:16:11 UTC 2024

On Mon, 10 Jun 2024 11:02:19 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

> We shouldn't specify a wrong array length which causes undefined behavior. Using a "flexible array member".

This fixes the ubsan warning.
However we have methods like
`  intptr_t* cloned_vtable()   { return &_cloned_vtable[0]; }`
accessing the first element; are you sure that this always works ?

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PR Comment: https://git.openjdk.org/jdk/pull/19623#issuecomment-2158058805