-h used to be a valid option for javap, but obsolete. When running javap -h, the output is
Error: -h is no longer available - use the javah program

When running javap with other invalid option, for example -b, it shows
Error: unknown option: -b
Usage: javap <options> <classes>
use -help for a list of possible options

This RFE is to change -h and all other obsolete options to print out consistent output as invalid options.