RFR: 8252807: The jdk.jfr.Recording.getStream does not work when toDisk is disabled [v3]

[Erik Gahlin]

> Clarify that an InputStream can't be returned when calling Recording::getStream() on an in memory recording.

Erik Gahlin has updated the pull request incrementally with one additional commit since the last revision:

  Remove trailing space

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1592/files
  - new: https://git.openjdk.java.net/jdk/pull/1592/files/17fbf254..af9038e8

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1592&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1592&range=01-02

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1592.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1592/head:pull/1592

PR: https://git.openjdk.java.net/jdk/pull/1592