SONARJAVA java:S1166 (either log or rethrow exception) should not raise an issue when using unnamed variables (conflict with rule java:S7467)

[Jmanom]

Part of RSPEC

See description of problem in discussion
Request: Update rule java:S1166 (either log or rethrow) for cases using unnamed varliables

Please note:
The check if variable is unnamed is delibarately in

  @Override
  public void visitCatch(CatchTree tree) {
    if (!isExcludedType(tree.parameter().type()) && !excludedCatchTrees.contains(tree)) {
      Symbol exception = tree.parameter().symbol();
      usageStatusStack.addFirst(new UsageStatus(exception.usages()));
      super.visitCatch(tree);
      if (usageStatusStack.pop().isInvalid() && !exception.isUnknown()
        **&& !isExceptionVariableUnnamed(tree.parameter())) {**
        context.reportIssue(this, tree.parameter(), "Either log or rethrow this exception.");
      }
    }
  }

and not together with the excluded cases (like ParseException etc.) in the first line.

to allow for deeper evaluation like this (excerpt from the test cases):
Otherwise no issue (possibly not very likly but not an excluded case) would not be raised for the inner catch.

try {
} catch (Exception _) {                     // Compliant
  try {
  } catch (Exception z) { // Noncompliant {{Either log or rethrow this exception.}}
  }
}