Ok所以这里是交易。我正在尝试访问 ConcreteEntity.instance 这是一个具有默认访问类型的字段，该字段存在于默认的 ClassLoader 中，并且 Entity.getInstance 是一个存在于子 ClassLoader 中的方法。
Ok so here is the deal. I am trying to access ConcreteEntity.instance which is a field with the access type default that exists inside the default ClassLoader and the Entity.getInstance is a method that exist in a child ClassLoader.
现在请记住，它们都在同一个包中，但是抛出了 IllegalAccessError 。是否有一个解决这个问题的方法，不涉及我实际在同一个 ClassLoader 中加载Entity类为 ConcreteEntity ？
Now keep in mind they're both in the same package, however an IllegalAccessError is being thrown. Is there a solution to this problem that doesn't involve me actually loading the Entity class inside the same ClassLoader as ConcreteEntity?
0 new #14 <Entity>
3 dup
4 aload_0
5 invokevirtual #18 <Adapter.getInstance>
8 checkcast #20 <sl>
11 getfield #24 <sl.d>
14 invokespecial #25 <Entity.<init>>
17 areturn
通过jclasslib at检索的字节码是生成的异常编译后。
The bytecode retrieved via jclasslib at were the exception is generated "After being compiled".
感谢Gamb清理帖子。
请参阅 ，除了你的情况很明显你正在处理多个类加载器：
See my answer to a similar question, except in your case it is clear that you are dealing with multiple classloaders:
jvm认为从不同的类加载器加载的类在不同的运行时包中，即使它们具有相同的包名。引自，部分5.3：
The jvm considers classes loaded from different classloaders to be in different "runtime packages", even if they have the same package name. Quoting from the jvm spceification, section 5.3:
在部分中5.4.4：
...
R受保护或包私有（即既不公开也不保护也不私有），并由与相同的运行时包中的类声明。
R is either protected or package private (that is, neither public nor protected nor private), and is declared by a class in the same runtime package as D.
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