RFR: 6766844: ByteArrayInputStream#read with a byte array of length 0 not consistent with InputStream when at EOF [v5]

[Brian Burkhalter]

> Modify `java.io.ByteArrayInputStream` methods `read(byte[])` and `read(byte[],int,int)` to return zero per the `InputStream` specification when the byte array actual or specified length is zero.

Brian Burkhalter has updated the pull request incrementally with two additional commits since the last revision:

 - 6766844: Move API note of read(byte[],int,int) to normative text
 - 6766844: Change "equivalent" to "overridden"

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/4591/files
  - new: https://git.openjdk.java.net/jdk/pull/4591/files/a53849a2..5435fe81

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=4591&range=04
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=4591&range=03-04

  Stats: 6 lines in 1 file changed: 2 ins; 3 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4591.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4591/head:pull/4591

PR: https://git.openjdk.java.net/jdk/pull/4591