GeekTan

How to new java/io/File Object?

1

``` let attach_guard = VM.attach_current_thread().unwrap(); let jobj = attach_guard .new_object( "java/io/File", "(Ljava/lang/String;)V", &[{ let args = CString::new(String::from("/home/geek/1.txt")).unwrap(); JValue::Object(JObject::from(args.as_ptr() as jobject)) }], ) .unwrap(); ``` ``` Exception in thread "Thread-1" java.lang.NullPointerException...