RFR: 6445283: ProgressMonitorInputStream not large file aware (>2GB) [v6]

[Prasanta Sadhukhan]

> If ProgressMonitor has to show progress for reading file > 2GB, it goes to 100% and then again start from 0. 
> This is because
> it uses "int" to store bytes read (`nread`) and when it reads data from file, it adds 
> "number-bytes-to-read "nr" to number-bytes-already-read "nread" variable [`nread += nr`] which can cause it to overflow and so "nread" becomes -ve.
> 
> Fix is to check if adding bytes-to-read to number-bytes-already-read will exceed MAX_INT, then set Progress to max so that ProgressMonitor can close the tracker 
> https://github.com/openjdk/jdk/blob/master/src/java.desktop/share/classes/javax/swing/ProgressMonitor.java#L265
> 
> No regression test is added as it involves using filesize of >2GB.

Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:

  Test Fix

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/9588/files
  - new: https://git.openjdk.org/jdk/pull/9588/files/16d5651b..29e5b8c5

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=9588&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=9588&range=04-05

  Stats: 5 lines in 1 file changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/9588.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9588/head:pull/9588

PR: https://git.openjdk.org/jdk/pull/9588