IllegalAccessError和代理

Question

我正在将此代码翻译为Clojure.正如你所看到的,我必须扩展课程ArthurFrame,但IllegalAccessError每次使用时我都会得到(proxy [ArthurFrame] [] ...).

知道为什么吗？这是班级的来源.

谢谢!

编辑: 这是在REPL上运行(proxy [ArthurFrame] [])的完整错误堆栈.

编辑2:实际上,即使实例化该类也会产生错误.以下是来自的输出(ArthurFrame. wid):

tried to access class com.trolltech.demos.ArthurFrame from class user$eval__2205
  [Thrown class java.lang.IllegalAccessError]

Restarts:
 0: [ABORT] Return to SLIME's top level.

Backtrace:
  0: user$eval__2205.invoke(NO_SOURCE_FILE:1)
  1: clojure.lang.Compiler.eval(Compiler.java:4642)
  2: clojure.core$eval__5254.invoke(core.clj:2031)
  3: swank.commands.basic$eval_region__907.invoke(basic.clj:40)
  4: swank.commands.basic$eval_region__907.invoke(basic.clj:31)
  5: swank.commands.basic$eval__927$listener_eval__929.invoke(basic.clj:54)
  6: clojure.lang.Var.invoke(Var.java:359)
  7: user$eval__2202.invoke(NO_SOURCE_FILE)
  8: clojure.lang.Compiler.eval(Compiler.java:4642)
  9: clojure.core$eval__5254.invoke(core.clj:2031)
 10: swank.core$eval_in_emacs_package__455.invoke(core.clj:59)
 11: swank.core$eval_for_emacs__533.invoke(core.clj:128)
 12: clojure.lang.Var.invoke(Var.java:367)
 13: clojure.lang.AFn.applyToHelper(AFn.java:179)
 14: clojure.lang.Var.applyTo(Var.java:476)
 15: clojure.core$apply__4379.invoke(core.clj:434)
 16: swank.core$eval_from_control__458.invoke(core.clj:66)
 17: swank.core$eval_loop__461.invoke(core.clj:71)
 18: swank.core$spawn_repl_thread__595$fn__627$fn__629.invoke(core.clj:183)
 19: clojure.lang.AFn.applyToHelper(AFn.java:171)
 20: clojure.lang.AFn.applyTo(AFn.java:164)
 21: clojure.core$apply__4379.invoke(core.clj:434)
 22: swank.core$spawn_repl_thread__595$fn__627.doInvoke(core.clj:180)
 23: clojure.lang.RestFn.invoke(RestFn.java:402)
 24: clojure.lang.AFn.run(AFn.java:37)
 25: java.lang.Thread.run(Thread.java:619)

Answer 1

问题是ArthurFrame可见性是包不公开所以代理无法访问它,因为代理不属于com.trolltech.demos包.你必须公开ArthurFrame.