--- old/src/share/vm/code/compiledIC.cpp 2015-08-27 08:36:39.150134403 +0200 +++ new/src/share/vm/code/compiledIC.cpp 2015-08-27 08:36:39.078134401 +0200 @@ -287,6 +287,7 @@ assert( is_c1_method || !is_monomorphic || is_optimized() || + !caller->is_alive() || (cached_metadata() != NULL && cached_metadata()->is_klass()), "sanity check"); #endif // ASSERT return is_monomorphic; @@ -321,7 +322,7 @@ } -void CompiledIC::set_to_clean() { +void CompiledIC::set_to_clean(bool in_use) { assert(SafepointSynchronize::is_at_safepoint() || CompiledIC_lock->is_locked() , "MT-unsafe call"); if (TraceInlineCacheClearing || TraceICs) { tty->print_cr("IC@" INTPTR_FORMAT ": set to clean", p2i(instruction_address())); @@ -337,7 +338,7 @@ // A zombie transition will always be safe, since the metadata has already been set to NULL, so // we only need to patch the destination - bool safe_transition = is_optimized() || SafepointSynchronize::is_at_safepoint(); + bool safe_transition = !in_use || is_optimized() || SafepointSynchronize::is_at_safepoint(); if (safe_transition) { // Kill any leftover stub we might have too