Set<String> getForbiddenMethods() {
    return forbiddenMethods;
  }
Returns an unmodifiable view of the methods disallowed by default.
This method can be used to get "read-only" access to the set containing the methods that
are considered non safe by default.

@return an unmodifiable view of the default disallowed methods.
geode-core/src/main/java/org/apache/geode/cache/query/security/RestrictedMethodAuthorizer.java