The document [1] starts out with table headers in the beginning, but omits them subsequently. For the sake of people using screen readers, and people just reading a small portion of the document, I propose adding table headers throughout.

See also [2] for a similar accessibility effort.

[1] https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Formatter.html
[2] https://bugs.openjdk.java.net/browse/JDK-8275518