The unsigned client has a Class.forName() method with two differences:
* The NoClassDefFoundError is created with a slightly different sequence
of instructions.
* The arms of the if/else statement for initializing the synthetic field
if it is null are swapped.
This commit adds support for translating Class.forName() methods with
either or both of these differences to the modern LDC form.
Signed-off-by: Graham <gpe@openrs2.dev>
In Java 1.4 and earlier, the compiler creates a synthetic method for
invoking Class.forName() and a static field for caching the Class<?>
instance.
This will not interact well with the static scrambling transformer. The
obfuscator strips some synthetic flags. Furthermore, the field and
method need to be moved together with the code that uses them for
decompilers like Fernflower to recognise them and convert them back to
class literals.
If Fernflower misses one, the decompiled Class.forName() helper does not
compile cleanly (as the bytecode is missing a CHECKCAST).
Rather than complicating the future static scrambling transformer, it's
easier to convert these to use LDC and upgrade the .class file version
to Java 5.
Graham