RFR: 7248: JMC7/8 Automated Analysis taking very long time to produce results for Class Leak Rule. [v2]

[Suchita Chaturvedi]

> This PR addresses the optimization of Class Leak Rule.
> 
> Please refer the JBS for the sample JFR which was taking ~90 minutes to generate results for Class Leak Rule. After the optimization time is reduced to ~10-15 minutes.
> 
> Please review the change and let me the know if there are any comments / suggestions.

Suchita Chaturvedi has updated the pull request incrementally with one additional commit since the last revision:

  Calculation maximum timeout is set via preference and hardcoding removed.

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Changes:
  - all: https://git.openjdk.java.net/jmc/pull/248/files
  - new: https://git.openjdk.java.net/jmc/pull/248/files/2a6aba8a..899e9a8b

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jmc&pr=248&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jmc&pr=248&range=00-01

  Stats: 21 lines in 4 files changed: 13 ins; 1 del; 7 mod
  Patch: https://git.openjdk.java.net/jmc/pull/248.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/248/head:pull/248

PR: https://git.openjdk.java.net/jmc/pull/248