src/share/classes/java/lang/invoke/MethodHandleImpl.java

*** 747,758 ****
          assert(AdapterMethodHandle.canCollectArguments(foldTargetType, test.type(), 0, true));
          // working backwards, as usual:
          assert(target.type().equals(fallback.type()));
          MethodHandle tailcall = MethodHandles.exactInvoker(target.type());
          MethodHandle select = selectAlternative();
!         select = bindArgument(select, 2, fallback);
!         select = bindArgument(select, 1, target);
          // select(z: boolean) => (z ? target : fallback)
          MethodHandle filter = filterArgument(tailcall, 0, select);
          assert(filter.type().parameterType(0) == boolean.class);
          MethodHandle fold = foldArguments(filter, filter.type().dropParameterTypes(0, 1), 0, test);
          return fold;
--- 747,758 ----
          assert(AdapterMethodHandle.canCollectArguments(foldTargetType, test.type(), 0, true));
          // working backwards, as usual:
          assert(target.type().equals(fallback.type()));
          MethodHandle tailcall = MethodHandles.exactInvoker(target.type());
          MethodHandle select = selectAlternative();
!         select = bindArgument(select, 2, CountingMethodHandle.wrap(fallback));
!         select = bindArgument(select, 1, CountingMethodHandle.wrap(target));
          // select(z: boolean) => (z ? target : fallback)
          MethodHandle filter = filterArgument(tailcall, 0, select);
          assert(filter.type().parameterType(0) == boolean.class);
          MethodHandle fold = foldArguments(filter, filter.type().dropParameterTypes(0, 1), 0, test);
          return fold;