UndeclaredThrowableException

[OrangeDog]

Tried to connect to a local JVM with 1.0.1, openjdk-8-jdk.

Welcome to JMX terminal. Type "help" for available commands.
$>open 17057
#UndeclaredThrowableException:
$>

[OrangeDog]

I think the underlying issue is process permissions, but the error message isn't very helpful.

[pushkarajthorat]

you saved my time

[matschaffer]

Me too :) I ran with -v verbose which made the problem quite clear: Caused by: java.io.IOException: well-known file /tmp/.java_pid41 is not secure: file should be owned by the current user (which is 0) but is owned by 1000

[ecerulm]

You can try

java --add-exports jdk.jconsole/sun.tools.jconsole=ALL-UNNAMED -jar jmxterm-1.0.4-uber.jar -v verbose

the -v verbose will give you a complete stacktracer rather than just the exception name like pointed out by @matschaffer.

In my case the the underlying exception was Caused by: java.lang.IllegalAccessException: class org.cyclopsgroup.jmxterm.utils.WeakCastUtils$2 cannot access class sun.tools.jconsole.LocalVirtualMachine (in module jdk.jconsole) because module jdk.jconsole does not export sun.tools.jconsole to unnamed module @7b3e2a8 which is solved by adding the --add-exports jdk.jconsole/sun.tools.jconsole=ALL-UNNAMED to the jvm options (so it must be passed before the -jar flag)