RFR: 8337317: serviceability/jvmti tests failed with FATAL ERROR in native method: Failed during the GetClassSignature call [v4]

[Alex Menkov]

> The fix adds guards against JVMTI_ERROR_WRONG_PHASE error in event handlers
> 
> Testing: hotspot/jtreg/serviceability/jvmti on all platforms

Alex Menkov has updated the pull request incrementally with one additional commit since the last revision:

  replace printf with LOG

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Changes:
  - all: https://git.openjdk.org/jdk/pull/20699/files
  - new: https://git.openjdk.org/jdk/pull/20699/files/e03df5eb..4dabe2f2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=20699&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=20699&range=02-03

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/20699.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20699/head:pull/20699

PR: https://git.openjdk.org/jdk/pull/20699