On 12/7/2011 2:04 PM, Mandy Chung wrote:
On 12/7/2011 1:30 PM, Frederic Parain wrote:
The execute method doesn't throw any exception other than
IAE. What happens if the specified command execution fails
in the target VM? If no exception is thrown, how does the
caller detect if the command succeeds or not and handle it
gracefully? It seems that this mechanism should provide
a way to detect if a command succeeds or fails programmatically
rather than burying the error message in the returned string.
This changeset contains the framework, and the framework
only throws NPE or IAE. However, a diagnostic command
impementation is free to throw any other exception. If such
an exception is thrown, it is simply printed on the output
stream if the command has been invoked through the attachAPI,
or it is propagated like any other exception through JMX
if the command has been invoked from the HotSpotDiagnosticMXBean.
What happens when HotSpotDiagnosticMXBean is called locally within the
same process but through JMX MBeanServer?
oops.. typo.
s/but through/but not through/
the uncaught exception will cause the running JVM to crash which seems
to be undesirable.
Mandy
