*/
    public void setHeaders(final Map<String, List<String>> headers) {
        if (headers != null) {
            final Map<String, List<String>> map = new HashMap<>();
            headers.entrySet().stream().filter(e -> e.getKey() != null)
                    .forEach(e -> map.put(e.getKey().toLowerCase(Locale.ROOT), e.getValue()));
            this.headers = map;
        }
    }

    /**

                                        <c:if test="${editable}">
                                            <la:form action="/admin/failureurl/">
                                                <div class="col-sm-12 center">
                                                    <button type="button" class="btn btn-danger"
                                                            data-toggle="modal" data-target="#confirmToDeleteAll">

                          graph.predecessors(node).iterator(),
                          (N predecessor) -> EndpointPair.ordered(predecessor, node)),
                      Iterators.transform(
                          // filter out 'node' from successors (already covered by predecessors,
                          // above)
                          Sets.difference(graph.successors(node), ImmutableSet.of(node)).iterator(),

        LogStream.setLevel(2);
        assertEquals(2, LogStream.level);

        // 3 - almost everything
        LogStream.setLevel(3);
        assertEquals(3, LogStream.level);

        // N - debugging (higher values)
        LogStream.setLevel(10);
        assertEquals(10, LogStream.level);
    }

    @Test
    void testSetInstanceAfterGetInstance() {

     */
    public OptionalEntity<CharMappingFile> getCharMappingFile(final String dictId) {
        return dictionaryManager.getDictionaryFile(dictId)
                .filter(CharMappingFile.class::isInstance)
                .map(file -> OptionalEntity.of((CharMappingFile) file))
                .orElse(OptionalEntity.empty());
    }

    /**

        assertEquals(0, pluginFiles.length);
    }

    public void test_getPluginJarFiles_withFilter() {
        FilenameFilter filter = (dir, name) -> name.endsWith(".jar");
        File[] pluginFiles = ResourceUtil.getPluginJarFiles(filter);
        assertNotNull(pluginFiles);
        // Should return empty array when plugin directory doesn't exist
        assertEquals(0, pluginFiles.length);
    }

        // ## Assert ##
        assertEquals(before, after);
    }

    private long countTmpFiles() {
        return Arrays.stream(Objects.requireNonNull(Curl.tmpDir.listFiles())).map(File::getName)
                .filter(s -> s.startsWith(PREFIX) && s.endsWith(SUFFIX)).count();
    }

import org.codelibs.fess.opensearch.log.cbean.cq.FavoriteLogCQ;
import org.codelibs.fess.opensearch.log.cbean.cq.bs.BsFavoriteLogCQ;
import org.opensearch.search.aggregations.bucket.filter.FilterAggregationBuilder;
import org.opensearch.search.aggregations.bucket.global.GlobalAggregationBuilder;
import org.opensearch.search.aggregations.bucket.histogram.DateHistogramAggregationBuilder;

        final String[] loggerNames = loggerNamePrefix != null
                ? Arrays.stream(loggerNamePrefix.split(",")).map(String::trim).filter(s -> s.length() > 0).toArray(n -> new String[n])
                : new String[0];
        return new ErrorToWarnRewritePolicy(loggerNames);
    }

                cmdList.add("-Dorg.apache.tika.service.error.warn=true");
            }
        }
        stream(fessConfig.getJvmCrawlerOptionsAsArray())
                .of(stream -> stream.filter(StringUtil::isNotBlank).forEach(value -> cmdList.add(value)));

        File ownTmpDir = null;
        final String tmpDir = System.getProperty("java.io.tmpdir");