8145628: hotspot metadata classes shouldn't use HeapWordSize or heap related macros like align_object_size Summary: Use align_metadata_size, align_metadata_offset and is_metadata_aligned for metadata rather than align_object_size, etc. Use wordSize rather than HeapWordSize for metadata. Use align_ptr_up rather than align_pointer_up (all the related functions are ptr). Reviewed-by: hseigel, jmasa, cjplummer

8146793: logStream::write re-formats string Summary: Eliminate re-format, add warning attribute, fix size check, fix va_list usage. Reviewed-by: mlarsson, rprotacio, jrose