// Stack manipulations //////////////////////////////////////////////////////////////////////////////
- case ACONST_NULL: return stack[sp++] = new Constant(null);
- case ICONST_M1: return stack[sp++] = new Constant(-1);
+ case ACONST_NULL: push(new Constant(null)); return null;
+ case ICONST_M1: push(new Constant(-1)); return null;
case ICONST_0: case LCONST_0: case FCONST_0: case DCONST_0: push(new Constant(0)); return null;
case ICONST_1: case LCONST_1: case FCONST_1: case DCONST_1: push(new Constant(1)); return null;
case ICONST_2: case FCONST_2: push(new Constant(2)); return null;