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# DarkReflection
DarkReflection brings FULL reflection back to new java versions.
There are several strategies for different java versions, allowing for
compatibility across *all* versions of OpenJDK from 8 to 22. (Other JDKs
are likely but not tested to work.)
## Strategies
### Class access
Class access is how DR gets the fields, methods, and constructors of a class.
**Basic** uses the getDeclaredX() methods. This does not work in the most
recent few versions.
**NativeGet** uses the underlying getDeclaredX0() methods. This is less
performant, but works on *all stable java versions*. (Early access versions
are to be tested soon.)
### Field access
Field access is how DR reads and writes to/from fields that are private or
final.
**Basic** uses the setAccessible(true) call.
**Adapted** uses the DarkAccessibleObject helper, which uses an unsafe to
change the `accessible` field of the AccessibleObject. At first, this
tries to use getDeclaredField to obtain the field handle, then falls back
to a FakeAccessibleObject, which is a class with the same memory layout as
AccessibleObject, to get the field offset.
**Unsafe** completely bypasses the AccessibleObject part by using the unsafe
on the field directly.
### FieldByName access
**GetDeclaredField** uses the regular Field strategy by wrapping the name
in the basic getDeclaredField().
**DarkReflection** uses the regular Field strategy, but obtains the field
handle using the Class strategy instead.
**Unsafe** is currently unnecessary, and uses a hidden unsafe method to obtain
the field offset directly from the name. Then, it uses the Unsafe Field
strategy on that offset.
## UnsafeCompat
DarkReflection also exposes a consistent unsafe API, that ports Java 8's
`defineClass` method to newer versions, and backports & opens the hidden
objectFieldOffset(name) method.
As the unsafe API shifts further, more and more will be added to the
UnsafeCompat API.
This is accessed through the UnsafeProvider.
## Does this always work?
I treat any malfunction or absence of function as a bug, but I cannot
guarantee reliability as this is simply a hobby project of mine.
Feel free to test this on as many java versions and runtimes as possible.