public Type getArrayType() {
    if (arrayType == null) {
      arrayType = putIntern(new Type('[' + descriptor, BT_OBJECT));
    }

    return arrayType;
  }
Gets the type corresponding to an array of this type.

@return {@code non-null;} the array type
android/android_framework/dex-maker/src/main/java/com/android/dx/rop/type/Type.java