RFR: 6669: FlameGraphView tree calculation should (probably) be interruptable [v7]

[Miroslav Wengner]

> fix to bug: https://bugs.openjdk.java.net/browse/JMC-6669

Miroslav Wengner has updated the pull request incrementally with one additional commit since the last revision:

  6669: add thread factory

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

Changes:
  - all: https://git.openjdk.java.net/jmc/pull/135/files
  - new: https://git.openjdk.java.net/jmc/pull/135/files/3bba252f..1c53cac3

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jmc&pr=135&range=06
 - incr: https://webrevs.openjdk.java.net/?repo=jmc&pr=135&range=05-06

  Stats: 14 lines in 1 file changed: 13 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jmc/pull/135.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/135/head:pull/135

PR: https://git.openjdk.java.net/jmc/pull/135