The `AbstractXContentFilteringTestCase#testDotsAndDoubleWildcardInExcludedFieldName` test (all subclasses) is failing. It is no longer failing due to invalid JSON (that was fixed by the upgrade to jackson 2.13.0), but it looks like it is failing to apply exclusions correctly.
libs/x-content/src/test/java/org/elasticsearch/xcontent/support/filtering/AbstractXContentFilteringTestCase.java
emptySet(),
            singleton(randomFrom("foo.*", "foo.*ar")),
            false
        );
    }
    public void testDotInExcludedFieldNamePatternConfigured() throws IOException {
        testFilter(
            builder -> builder.startObject().endObject(),
            builder -> builder.startObject().field("foo.bar", "test").endObject(),
            emptySet(),
            singleton(randomFrom("foo.*", "*.bar", "f*.bar", "foo.*ar", "*.*")),
            true
        );
    }
    public void testDotInIncludedObjectNamePatternUnconfigured() throws IOException {
        testFilter(
            builder -> builder.startObject().endObject(),
            builder -> builder.startObject().startObject("foo.bar").field("baz", "test").endObject().endObject(),
            singleton(randomFrom("foo.*", "f*.bar", "foo.*ar")),
            emptySet(),
            false
        );
    }
    public void testDotInIncludedObjectNamePatternConfigured() throws IOException {
        testFilter(
            builder -> builder.startObject().startObject("foo.bar").field("baz", "test").endObject().endObject(),
            builder -> builder.startObject().startObject("foo.bar").field("baz", "test").endObject().endObject(),
            singleton(randomFrom("foo.*", "*.bar", "f*.bar", "foo.*ar")),
            emptySet(),
            true