RFR: 7040: Event list is not updated and Stack trace stale upon Set as Focused Selection

[Suchita Chaturvedi]

This PR fixes the issue of the event table not refreshing on change of focused selection.

Please review the change.

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Commit messages:
 - 7040: Event list is not updated and Stack trace stale upon Set as Focused Selection

Changes: https://git.openjdk.java.net/jmc/pull/213/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jmc&pr=213&range=00
  Issue: https://bugs.openjdk.java.net/browse/JMC-7040
  Stats: 7 lines in 1 file changed: 0 ins; 6 del; 1 mod
  Patch: https://git.openjdk.java.net/jmc/pull/213.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/213/head:pull/213

PR: https://git.openjdk.java.net/jmc/pull/213