RFR: 7329: Exception while opening Method Profile page. [v2]

[Suchita Chaturvedi]

> This PR addresses the null pointer exception issue.

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

  Fix spotbugs failures

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Changes:
  - all: https://git.openjdk.java.net/jmc/pull/277/files
  - new: https://git.openjdk.java.net/jmc/pull/277/files/b0942554..3570af41

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jmc&pr=277&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jmc&pr=277&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jmc/pull/277.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/277/head:pull/277

PR: https://git.openjdk.java.net/jmc/pull/277