RFR: 8330462: StringIndexOutOfBoundException when typing anything into TextField [v11]

[Oliver Kopp]

> Fixes https://bugs.openjdk.org/browse/JDK-8330462.
> 
> If the parameter `maxLength` is larger than `Integer.MAX_VALUE - start`, then an addition of `start` to it leads to a negative value. This is "fixed" by using `Math.max` comparing the `maxLength` and `maxLength + start`.

Oliver Kopp has updated the pull request incrementally with one additional commit since the last revision:

  Rename method, add comments, simplify method

-------------

Changes:
  - all: https://git.openjdk.org/jfx/pull/1442/files
  - new: https://git.openjdk.org/jfx/pull/1442/files/09ec35d0..219137bb

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1442&range=10
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1442&range=09-10

  Stats: 16 lines in 1 file changed: 3 ins; 0 del; 13 mod
  Patch: https://git.openjdk.org/jfx/pull/1442.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1442/head:pull/1442

PR: https://git.openjdk.org/jfx/pull/1442