Fix issue with covariant return method validation #41703
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The ClassLoader::ValidateMethodsWithCovariantReturnTypes was being called from a place where the relevant types were sometimes not fully loaded yet. That resulted in an attempt to load the type being loaded recursively, which was detected and the TypeLoadException was thrown. This change fixes it by moving the call to the ClassLoader::ValidateMethodsWithCovariantReturnTypes to the PushFinalLevels when the level is greater than CLASS_LOAD_EXACTPARENTS, which is the last stage of normal loading.
davidwrighton
approved these changes
Sep 1, 2020
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/backport to release/5.0-rc2 |
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Started backporting to release/5.0-rc2: https://github.com/dotnet/runtime/actions/runs/236120186 |
ghost
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The ClassLoader::ValidateMethodsWithCovariantReturnTypes was being called
from a place where the relevant types were sometimes not fully loaded yet.
That resulted in an attempt to load the type being loaded recursively,
which was detected and the TypeLoadException was thrown.
This change fixes it by moving the call to the
ClassLoader::ValidateMethodsWithCovariantReturnTypes to the PushFinalLevels
when the level is greater than CLASS_LOAD_EXACTPARENTS, which is the
last stage of normal loading.