It could start with something like:

```JavaScript
/*! For license information please see redoc.standalone.js.LICENSE.txt */
!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t(require("null")):
...
```

That confirms that you are being able to serve static files from your app, and that you placed the static files for the docs in the correct place.

package org.codelibs.fess.app.web.admin.storage;

import static org.codelibs.core.stream.StreamUtil.split;

import java.io.InputStream;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Base64;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;

import static org.mockito.Mockito.lenient;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

import jcifs.CIFSException;
import jcifs.CloseableIterator;

package org.codelibs.fess.opensearch.user.cbean.bs;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.codelibs.fess.opensearch.user.allcommon.EsAbstractConditionBean;
import org.codelibs.fess.opensearch.user.bsentity.dbmeta.UserDbm;
import org.codelibs.fess.opensearch.user.cbean.UserCB;
import org.codelibs.fess.opensearch.user.cbean.ca.UserCA;
import org.codelibs.fess.opensearch.user.cbean.ca.bs.BsUserCA;

)

package okhttp3

import assertk.assertThat
import assertk.assertions.isCloseTo
import assertk.assertions.isFalse
import assertk.assertions.isInstanceOf
import assertk.assertions.matchesPredicate
import java.util.Deque
import java.util.concurrent.ConcurrentLinkedDeque
import java.util.concurrent.TimeUnit
import okhttp3.ConnectionEvent.NoNewExchanges
import okhttp3.internal.connection.ConnectionListener

 */

package com.google.common.math;

import static com.google.common.math.MathBenchmarking.ARRAY_MASK;
import static com.google.common.math.MathBenchmarking.ARRAY_SIZE;
import static com.google.common.math.MathBenchmarking.randomDouble;
import static com.google.common.math.MathBenchmarking.randomPositiveDouble;

import com.google.caliper.BeforeExperiment;
import com.google.caliper.Benchmark;
import com.google.caliper.Param;

 */

package com.google.common.testing;

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.concurrent.GuardedBy;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.logging.Handler;
import java.util.logging.LogRecord;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**

package org.apache.maven.artifact;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.apache.maven.artifact.versioning.VersionRange;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;

package org.codelibs.fess.app.service;

import java.util.List;

import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.pager.FileAuthPager;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.opensearch.config.cbean.FileAuthenticationCB;
import org.codelibs.fess.opensearch.config.exbhv.FileAuthenticationBhv;

 */
package org.apache.maven.internal.compat.interactivity;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.maven.api.annotations.Experimental;
import org.codehaus.plexus.components.interactivity.InputHandler;
import org.codehaus.plexus.components.interactivity.OutputHandler;