Just as a quick note, JSS and the JAVA package too won't allow you to treat
LispObjects objects as JavaObjects for the purposes of JFIELD and
JSS:GET-JAVA-FIELD. But if you still want to access internal fields and
implementation details (the usual warnings apply!), try the following:
(jss:get-java-field (jss:new 'JavaObject (car (threads:mapcar-threads #'identity))) "javaThread" T)This was because I was looking for an answer to a question on #abcl, but even
then, wrapping the "Lisp" object in a JavaObject manually helps achieve the
requested goal of retrieving the Java Thread object.
The T at the end is necessary here because the field is actually
package-private - but that's to be expected if you want to access internals
without an (official) API.
