private static StringBuffer appendTypeString(StringBuffer sb, Class type) { while (type.isArray()) { sb.append('['); type = type.getComponentType(); } if (type.isPrimitive()) { char typeLetter; if (type == Boolean.TYPE) { typeLetter = 'Z'; } else if (type == Long.TYPE) { typeLetter = 'J'; } else { String typeName = type.getName(); typeLetter = Character.toUpperCase(typeName.charAt(0)); } sb.append(typeLetter); } else { sb.append('L'); sb.append(type.getName().replace('.', '/')); sb.append(';'); } return sb; }