When looking at a jar file with JD-GUI I keep getting some sort of display error. It seems to replace variable names/identifiers with the symbol ��� (which in JD-GUI looks like a red snowman, picture attached). Any idea of how to fix this? I tried googling around but wasn't able to describe my situation very well and could therefore not find anyone with the same problem. Thanks in advance!
It looks like the identifier is unicode. You can fix that by using a decompiler like Procyon that escapes unicode. (You should be using Procyon anyway because JD-GUI is a poor decompiler).