--- a/hotspot/src/share/vm/code/debugInfoRec.cpp	Mon Jul 23 13:04:59 2012 -0700
+++ b/hotspot/src/share/vm/code/debugInfoRec.cpp	Tue Jul 24 10:51:00 2012 -0700
@@ -311,6 +311,7 @@
   assert(method == NULL ||
          (method->is_native() && bci == 0) ||
          (!method->is_native() && 0 <= bci && bci < method->code_size()) ||
+         (method->is_compiled_lambda_form() && bci == -99) ||  // this might happen in C1
          bci == -1, "illegal bci");
 
   // serialize the locals/expressions/monitors