We can set a rmi registry port of debugd server by `sun.jvm.hotspot.rmi.port`, but can not set a port of RemoteObject (sun.jvm.hotspot.debugger.remote.RemoteDebuggerServer) then RemoteObject always uses an anonymous port.
            
- duplicates
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                    JDK-8196751 Add jhsdb option to specify debug server RMI connector port -           
- Resolved
 
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- relates to
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                    JDK-8223665 SA: debugd options should follow jhsdb style -           
- Resolved
 
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- 
                    JDK-8196751 Add jhsdb option to specify debug server RMI connector port -           
- Resolved
 
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