src/share/vm/opto/stringopts.cpp

*** 1518,1528 ****
      Node* index = start;
      for (int i = 0; i < length; i++) {
        Node* adr = kit.array_element_address(dst_array, index, T_BYTE);
        jchar val;
        if (src_is_byte) {
!         val = src_array->byte_at(i);
        } else {
          val = readChar(src_array, i++);
        }
        __ store(__ ctrl(), adr, __ ConI(val), T_CHAR, byte_adr_idx, MemNode::unordered);
        index = __ AddI(index, __ ConI(2));
--- 1518,1528 ----
      Node* index = start;
      for (int i = 0; i < length; i++) {
        Node* adr = kit.array_element_address(dst_array, index, T_BYTE);
        jchar val;
        if (src_is_byte) {
!         val = src_array->byte_at(i) & 0xff;
        } else {
          val = readChar(src_array, i++);
        }
        __ store(__ ctrl(), adr, __ ConI(val), T_CHAR, byte_adr_idx, MemNode::unordered);
        index = __ AddI(index, __ ConI(2));