@Override
    public void beforeIndexLookup(Index index, int oper, Object key) {
      indexesUsed.add(index.getName());
    }
Test for bug 46872, make sure we recover the index correctly if the cache.xml changes for a
persistent region.
geode-core/src/integrationTest/java/org/apache/geode/cache/query/functional/IndexCreationJUnitTest.java