ChainFileListFilter provides Object[] instead of File[] during iteration

@Test
public void patternThenModifiedFilters() throws IOException {
	try (ChainFileListFilter<File> chain = new ChainFileListFilter<>(File.class)) {
		chain.addFilter(new SimplePatternFileListFilter("*.txt"));
		chain.addFilter(new LastModifiedFileListFilter());
		List<File> result = chain.filterFiles(files);
		assertEquals(1, result.size());
	}
}

public class ChainFileListFilter<F> extends CompositeFileListFilter<F> {

	private final Class<F> fileClass;

	public ChainFileListFilter(Class<F> fileClass) {
		this.fileClass = fileClass;
	}

	@Override
	public List<F> filterFiles(F[] files) {
		Assert.notNull(files, "'files' should not be null");
		List<F> leftOver = Arrays.asList(files);
		for (FileListFilter<F> fileFilter : this.fileFilters) {
			@SuppressWarnings("unchecked")
			F[] fileArray = leftOver.toArray((F[]) Array.newInstance(this.fileClass, leftOver.size()));
			leftOver = fileFilter.filterFiles(fileArray);
		}
		return leftOver;
	}

}