Doesn't work and I don't know why

src/main/java/info/sigterm/deob/attributes/code/Instruction.java

@@ -39,7 +39,7 @@ public abstract class Instruction
 	
 	public String getDesc(Frame frame)
 	{
-		return null;
+		return type.getName();
 	}
 
 	protected void addJump(int offset)

src/main/java/info/sigterm/deob/attributes/code/instructions/Return.java

@@ -17,7 +17,6 @@ public class Return extends Instruction
 	@Override
 	public void execute(Frame e)
 	{
-		// XXX exceptions?
 		Object ret = e.getStack().pop();
 		e.getPath().returnFrame(this, ret);
 	}