On 2016-08-26 12:02, Alan Bateman wrote:
In your mail then the class is "MyClass", I'm guessing this isn't really
your actual class name.
Exactly.
On the attach API then the supported/documented API is
com.sun.tools.attach. It's never been documented to make direct use of
types in sun.tools.attach. Are you casting the VirtualMachine to a
HotSpotVirtualMachine and hacking into implementation?
I have implemented my own JMX connector[1], that do need to cast to
HotSpotVirtualMachine in order to load the agent into target process
using jcmd. If there ware a portable way to initiate JXM connection
using socket or pid that would work across different java vendors and
versions I would love to throw that all away but I have not found any. I
intend to elaborate further and report back if this use-case can be
covered by exposed modules or not.
It might be best
to explain what you are doing. You can of temporarily break
encapsulation to allow the above to compile/run with `--add-exports
jdk.attach/sun.tools.attach=<target>", where <target> is your module
name or ALL-UNNAMED if your library is on the class path.
Good to know that, thanks!
[1]
https://github.com/olivergondza/dumpling/blob/26092acdb3e9bec540b68a18fe7519d6ee33a814/core/src/main/java/com/github/olivergondza/dumpling/factory/jmx/JmxLocalProcessConnector.java#L124
--
oliver
