}

    @Override
    protected Spec<FileTreeElement> createSpec(final Collection<String> patterns, final boolean include, final boolean caseSensitive) {
        final SpecKey key = new SpecKey(ImmutableList.copyOf(patterns), include, caseSensitive);
        try {
            return specInstanceCache.get(key, new Callable<Spec<FileTreeElement>>() {
                @Override

Class <org.gradle.api.tasks.util.internal.CachingPatternSpecFactory$SpecKey> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (CachingPatternSpecFactory.java:0)