Update to_j_js_plugin

py/server/deephaven_internal/plugin/js/__init__.py

@@ -3,18 +3,27 @@
 #
 
 import jpy
+import pathlib
+
 from deephaven.plugin.js import JsPlugin
 
 _JJsPlugin = jpy.get_type("io.deephaven.plugin.js.JsPlugin")
 _JPath = jpy.get_type("java.nio.file.Path")
 
 
 def to_j_js_plugin(js_plugin: JsPlugin) -> jpy.JType:
-    j_path = _JPath.of(str(js_plugin.path))
+    path = js_plugin.path()
+    if not isinstance(path, pathlib.Path):
+        # Adding a little bit of extra safety for this version of the server.
+        # There's potential that the return type of JsPlugin.path expands in the future.
+        raise Exception(
+            f"Expecting pathlib.Path, is type(js_plugin.path())={type(path)}, js_plugin={js_plugin}"
+        )
+    j_path = _JPath.of(str(path))
     main_path = j_path.relativize(j_path.resolve(js_plugin.main))
     builder = _JJsPlugin.builder()
     builder.name(js_plugin.name)
     builder.version(js_plugin.version)
     builder.main(main_path)
-    builder.path(path)
+    builder.path(j_path)
     return builder.build()