void (final PsiExpression operand, final PsiJavaToken sign) { final IElementType tokenType = sign.getTokenType(); if (!tokenType.equals(JavaTokenType.PLUSPLUS) && !tokenType.equals(JavaTokenType.MINUSMINUS)) { return; } if (isProhibitedReference(operand)) { final PsiField field = getReferencedField(operand); if (!hasSetter(field) && !isStaticFinal(field)) { fieldsNeedingSetter.add(field); } } }