Summary

Make options for debugd mode of jhsdb conform to other jhsdb modes.

Problem

debugd mode of jhsdb was introduced by JDK-8160817. However it uses old-style options as below:

[option] <pid> [server-id]	 (to connect to a live java process)
  or
[option] <executable> <core> [server-id] 
                         (to connect to a core file produced by <executable>)
 server-id is an optional unique id for this debug server, needed
 if multiple debug servers are run on the same machine
 where option includes:
   -h | -help	to print this help message

jhsdb uses SALauncher to start SA tools, and new options were introduced by JDK-8059038. debugd is not compliant with this.

Solution

We can replace all options in debugd with the new jhsdb style.

Specification

The new command line format for debugd will be as per the help out below:

$ jhsdb --help
    clhsdb       	command line debugger
    hsdb         	ui debugger
    debugd --help	to get more information
    jstack --help	to get more information
    jmap   --help	to get more information
    jinfo  --help	to get more information
    jsnap  --help	to get more information

$ jhsdb debugd --help
    --serverid	<unique id for this debug server>
    --exe	<executable image name>
    --core	<path to coredump>
    --pid	<pid of process to attach>

For example:

jhsdb debugd 1234

becomes

jhsdb debugd --pid 1234

and

jhsdb debugd /usr/bin/java /tmp/core.1234

becomes

jhsdb debugd --exe /usr/bin/java --core /tmp/core.1234