openrs2

Open-source multiplayer game server compatible with the RuneScape client https://www.openrs2.org/

History

Graham a82d2e3cef Transform class literals to Java 5 format 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.	4 years ago
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dev/openrs2/deob	Transform class literals to Java 5 format	4 years ago

Graham a82d2e3cef Transform class literals to Java 5 format

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.

4 years ago

dev/openrs2/deob

Transform class literals to Java 5 format

4 years ago