import org.apache.commons.io.output.ByteArrayOutputStream;

public class WebApiResponse extends HttpServletResponseWrapper {

    public WebApiResponse(final HttpServletResponse response) {
        super(response);
    }

    @Override
    public PrintWriter getWriter() throws IOException {
        // dummy stream
        return new PrintWriter(new ByteArrayOutputStream());
    }

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.entity;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Locale;
import java.util.Set;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;

            if ("system.properties".equals(id)) {
                return asStream(id).contentTypeOctetStream().stream(out -> {
                    try (final ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
                        ComponentUtil.getSystemProperties().store(baos, id);
                        try (final InputStream in = new ByteArrayInputStream(baos.toByteArray())) {

            ASN1EncodableVector ev = new ASN1EncodableVector();
            ev.add(SPNEGO_OID);
            ev.add(new DERTaggedObject(true, 0, new DERSequence(fields)));
            ByteArrayOutputStream collector = new ByteArrayOutputStream();
            ASN1OutputStream der = ASN1OutputStream.create(collector, ASN1Encoding.DER);

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.util;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.function.Function;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

    static String srcString = "ABCDEFGHIJKLMN";

    static String urlString = "あいうえお";

    InputStream is = new ByteArrayInputStream(srcBytes);

    ByteArrayOutputStream os = new ByteArrayOutputStream();

    Reader reader = new StringReader(srcString);

    StringWriter writer = new StringWriter();

    StringBuilder builder = new StringBuilder();

     * @return オブジェクトのbyte配列
     */
    public static byte[] fromObjectToBinary(final Object obj) {
        assertArgumentNotNull("obj", obj);

        try {
            final ByteArrayOutputStream baos = new ByteArrayOutputStream(BYTE_ARRAY_SIZE);
            final ObjectOutputStream oos = new ObjectOutputStream(baos);
            try {
                oos.writeObject(obj);
            } finally {
                oos.close();

            if ("system.properties".equals(id)) {
                return asStream(id).contentTypeOctetStream().stream(out -> {
                    try (final ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
                        ComponentUtil.getSystemProperties().store(baos, id);
                        try (final InputStream in = new ByteArrayInputStream(baos.toByteArray())) {

        }
        return hash;
    }

    public String encodeSimilarDocHash(final String hash) {
        if (hash != null && !hash.startsWith(SIMILAR_DOC_HASH_PREFIX)) {
            try (ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
                try (GZIPOutputStream gos = new GZIPOutputStream(baos)) {
                    gos.write(hash.getBytes(Constants.UTF_8));
                }

        return buf;
    }

    protected StringBuilder appendException(final StringBuilder buf, final Exception exception) {
        try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
                PrintWriter writer = new PrintWriter(baos, false, Constants.CHARSET_UTF_8)) {
            exception.printStackTrace(writer);
            writer.flush();