I connected to the running service and had var pointing to the classloader with which the plugin was loaded (with installation my.package).
DynamicClassLoader used by REPL does not include the plugin I want to interact with; I want to be able to work with classes loaded from the plugin, despite this limitation.
The following works:
=> (.loadClass plugin-classloader "my.package.MyClass")
my.package.MyClass
... while the following does not allow (explicitly overriding the stream class loader):
=> (do
(.setContextClassLoader (Thread/currentThread) plugin-classloader)
(Class/forName "my.package.MyClass"))
ClassNotFoundException my.package.MyClass java.net.URLClassLoader$1.run (URLClassLoader.java:202)
... and does not (explicitly overriding the thread context class loader and the clojure.lang.Compiler / LOADER link):
=> (let [dcl (clojure.lang.DynamicClassLoader. plugin-classloader)]
(.setContextClassLoader (Thread/currentThread) dcl)
(with-bindings* {clojure.lang.Compiler/LOADER dcl}
(eval '(pr-str (Class/forName "my.package.MyClass")))))
ClassNotFoundException my.package.MyClass java.net.URLClassLoader$1.run (URLClassLoader.java:202)
... and does not do this:
=> my.package.MyClass
CompilerException java.lang.ClassNotFoundException: my.package.MyClass, compiling:(NO_SOURCE_PATH:0)
Class.forName() ? , ; ClassNotFoundExceptions, .
, , , Clojure DynamicClassLoader ( BundleClassLoader plugin-classloader var) :
=> (e)
java.lang.ClassNotFoundException: my.package.MyClass
at java.net.URLClassLoader$1.run (URLClassLoader.java:202)
java.security.AccessController.doPrivileged (AccessController.java:-2)
java.net.URLClassLoader.findClass (URLClassLoader.java:190)
clojure.lang.DynamicClassLoader.findClass (DynamicClassLoader.java:61)
java.lang.ClassLoader.loadClass (ClassLoader.java:306)
java.lang.ClassLoader.loadClass (ClassLoader.java:247)
java.lang.Class.forName0 (Class.java:-2)
java.lang.Class.forName (Class.java:169)