OpenJDK / valhalla / valhalla
changeset 48509:2207e2917a68
8191854: Null pointer dereference in methodData.hpp:462
Reviewed-by: kvn
| author | dlong |
|---|---|
| date | Fri, 22 Dec 2017 22:06:54 -0800 |
| parents | 044979e94c4e |
| children | 8441a7cea1c1 |
| files | src/hotspot/share/runtime/compilationPolicy.cpp |
| diffstat | 1 files changed, 6 insertions(+), 2 deletions(-) [+] |
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--- a/src/hotspot/share/runtime/compilationPolicy.cpp Fri Dec 22 22:01:53 2017 -0800 +++ b/src/hotspot/share/runtime/compilationPolicy.cpp Fri Dec 22 22:06:54 2017 -0800 @@ -470,8 +470,12 @@ if (bci != InvocationEntryBci) { MethodData* mdo = m->method_data(); if (mdo != NULL) { - int count = mdo->bci_to_data(branch_bci)->as_JumpData()->taken(); - tty->print_cr("back branch count = %d", count); + ProfileData *pd = mdo->bci_to_data(branch_bci); + if (pd == NULL) { + tty->print_cr("back branch count = N/A (missing ProfileData)"); + } else { + tty->print_cr("back branch count = %d", pd->as_JumpData()->taken()); + } } } }