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Fix for #1583.
@nullis now restricted to values that have a data type ofTYPE_REFERENCE.Furthermore I restricted the attribute name replacement to
TYPE_INT_DECvalues, in my tests only attributes with that type had a successful replacement, all the other just caused aNumberFormatException.I compared the resources of several apps decompiled by Jadx and by apktool regarding
@nullreplacement. Most apps had the same reference counter of@nullin both decompiled apps. Some apktool decompiled apps had a few references more but I wasn't able to detect where the exact difference was located as the xml files are often named differently and the attributes are created in a different order which makes comparison difficult.Last but not least I noticed that deobfuscator had a rule for abstract classes but not for interfaces.