m-koops opened a new issue, #1126:
URL: https://github.com/apache/poi/issues/1126

   While loading the tabstop descriptors the offset in the byte[] is not 
calculated properly, leading to interpreting the wrong bytes for tabstop 
alignment and leader attributes.
   
   According to section [2.9.179 PChgTabsAdd of the Word binary format 
description](https://learn.microsoft.com/en-us/openspecs/office_file_formats/ms-doc/691c20a1-915b-4403-9813-1f0c96ed6f8b),
 the byte array for tabstop attributes of the `ParagraphProperties` should be 
read as:
    - `cb`, 1 byte - unsigned int holding the total byte size of the operand 
structure, after the cb byte (2 <= value <= 255)
    - followed by repeating (0 or more) `PChgTabsDel` structures (to 
ignore/delete existing tabstops)
    - followed by repeating (0 or more) `PChgTabsAdd` structures to define new 
tabstops
   
   A `PChgTabsAdd` structure in its turn consists of:
    - `cTabs`, 1 byte - unsigned int holding the number of tabs to add (value 
<= 64)
    - followed by repeating (cTabs times) `rgdxaAdd` values, each 2 bytes/16 
bits long, holding the horizontal positions of the tabstops defined in twips
    - followed by repeating (cTabs times) `rgtbdAdd` values, each 1 byte/8 bits 
long, holding the `jc` and `tlc` coding for alignment and leader definition for 
the tabstops.
   
   It is in the iteration in `handleTabs()` to read the repeating elements in 
the `PChgTabsAdd` structure that the `rgtbdAdd` values are extracted using a 
wrong offset: the offset should jump `cTabs` * 2 bytes (= 
`LittleEndianConsts.SHORT_SIZE`) after the start of the sequence instead of 
`cTabs` * 1 byte (= `TBDAbstractType.getSize()`).


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