Java Code Examples for java.io.ByteArrayOutputStream

@Test
public void invokeHandler_invalidModelTypes_causesSchemaValidationFailure() throws IOException {
    // use actual validator to verify behaviour
    final WrapperOverride wrapper = new WrapperOverride(providerLoggingCredentialsProvider, platformEventsLogger,
                                                        providerEventsLogger, providerMetricsPublisher, new Validator() {
                                                        }, httpClient);

    wrapper.setTransformResponse(resourceHandlerRequest);

    try (final InputStream in = loadRequestStream("create.request.with-invalid-model-types.json");
        final OutputStream out = new ByteArrayOutputStream()) {
        final Context context = getLambdaContext();

        wrapper.handleRequest(in, out, context);

        // verify output response
        verifyHandlerResponse(out,
            ProgressEvent.<TestModel, TestContext>builder().errorCode(HandlerErrorCode.InvalidRequest)
                .status(OperationStatus.FAILED)
                .message("Model validation failed (#/property1: expected type: String, found: JSONArray)").build());
    }
}
 

@Test
public void T_dataSizeAfterAppend_equalsDataBinarySize_withNestedSimpleCaseChild() throws IOException {
  PushdownSupportedBlockWriter writer = new PushdownSupportedBlockWriter();
  writer.setup( 1024 * 1024 * 8 , new Configuration() );
  List<ColumnBinary> childList = createSimpleCaseData();
  List<ColumnBinary> list = Arrays.asList( DumpSpreadColumnBinaryMaker.createSpreadColumnBinary(
      "parent" , 10 , childList ) );
  int sizeAfterAppend = writer.sizeAfterAppend( list );
  writer.append( 10 , list );

  int outputDataSize = writer.size();
  ByteArrayOutputStream out = new ByteArrayOutputStream();
  writer.writeVariableBlock( out );
  byte[] block = out.toByteArray();
  assertEquals( outputDataSize , block.length );
}
 

/**
 * Write the given properties list to a byte array and return it. Properties with
 * a key or value that is not a String is filtered out. The stream written to the byte
 * array is ISO 8859-1 encoded.
 */
private static byte[] serializePropertiesToByteArray(Properties p) throws IOException {
    ByteArrayOutputStream out = new ByteArrayOutputStream(4096);

    Properties props = new Properties();

    // stringPropertyNames() returns a snapshot of the property keys
    Set<String> keyset = p.stringPropertyNames();
    for (String key : keyset) {
        String value = p.getProperty(key);
        props.put(key, value);
    }

    props.store(out, null);
    return out.toByteArray();
}
 

public void setInputStreamFrom(InputStream in) throws IOException {
    assert(bytes == null);
    assert(assertReadyToReadFrom(this, in));
    setPhase(READ_PHASE);
    this.in = in;
    if (optDumpBands) {
        // Tap the stream.
        bytesForDump = new ByteArrayOutputStream();
        this.in = new FilterInputStream(in) {
            @Override
            public int read() throws IOException {
                int ch = in.read();
                if (ch >= 0)  bytesForDump.write(ch);
                return ch;
            }
            @Override
            public int read(byte b[], int off, int len) throws IOException {
                int nr = in.read(b, off, len);
                if (nr >= 0)  bytesForDump.write(b, off, nr);
                return nr;
            }
        };
    }
    super.readyToDisburse();
}
 

private static Bitmap compressBitmap(Bitmap bitmap, long sizeLimit) {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    int quality = 90;
    bitmap.compress(Bitmap.CompressFormat.JPEG, quality, baos);
    LogUtil.i(TAG, "origin size:" + baos.size());
    //TODO has problem
    while (baos.size() / 1024 > sizeLimit) {
        LogUtil.i(TAG, "after size:" + baos.size());
        // 清空baos
        baos.reset();
        quality -= 10;
        bitmap.compress(Bitmap.CompressFormat.JPEG, quality, baos);
    }

    return BitmapFactory.decodeStream(new ByteArrayInputStream(baos.toByteArray()), null, null);
}
 

static void serial(URI u) throws IOException, URISyntaxException {

        ByteArrayOutputStream bo = new ByteArrayOutputStream();
        ObjectOutputStream oo = new ObjectOutputStream(bo);

        oo.writeObject(u);
        oo.close();

        ByteArrayInputStream bi = new ByteArrayInputStream(bo.toByteArray());
        ObjectInputStream oi = new ObjectInputStream(bi);
        try {
            Object o = oi.readObject();
            eq(u, (URI)o);
        } catch (ClassNotFoundException x) {
            x.printStackTrace();
            throw new RuntimeException(x.toString());
        }

        testCount++;
    }
 

@Test
public void copyByTestReturnCheckError()
        throws InstantiationException
{
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    PrintStream printStream = AopFactory.proxy(PrintStream.class)
            .byInstance(UnsafeHelper.allocateInstance(PrintStream.class))
            .whereMethod(methodInfo -> methodInfo.getName().equals("checkError"))
            .around(proxyContext -> true);

    try (ByteArrayInputStream inputStream = new ByteArrayInputStream("IOUtilsTest".getBytes(UTF_8))) {
        IOUtils.copyBytes(inputStream, printStream, 1024, false);
        Assert.assertEquals("IOUtilsTest", outputStream.toString(UTF_8.name()));
        Assert.fail();
    }
    catch (IOException e) {
        Assert.assertEquals(e.getMessage(), "Unable to write to output stream.");
    }
}
 

private byte[] gzipMessage(byte[] message) {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();

    try {
        GZIPOutputStream stream = new GZIPOutputStream(bos);

        stream.write(message);
        stream.finish();
        Closer.close(stream);
        byte[] zipped = bos.toByteArray();
        Closer.close(bos);
        return zipped;
    } catch (IOException e) {
        return null;
    }
}
 

private static void testWrapEncode2(final Base64.Encoder encoder)
        throws IOException {
    System.err.println("\nEncoder.wrap test II ");
    final byte[] secondTestBuffer =
            "api/java_util/Base64/index.html#GetEncoderMimeCustom[noLineSeparatorInEncodedString]"
            .getBytes(US_ASCII);
    String base64EncodedString;
    ByteArrayOutputStream secondEncodingStream = new ByteArrayOutputStream();
    OutputStream base64EncodingStream = encoder.wrap(secondEncodingStream);
    base64EncodingStream.write(secondTestBuffer);
    base64EncodingStream.close();

    final byte[] encodedByteArray = secondEncodingStream.toByteArray();

    System.err.print("result = " + new String(encodedByteArray, US_ASCII)
            + "  after wrap Base64 encoding of string");

    base64EncodedString = new String(encodedByteArray, US_ASCII);

    if (base64EncodedString.contains("$$$")) {
        throw new RuntimeException(
                "Base64 encoding contains line separator after wrap 2 invoked  ... \n");
    }
}
 

@Override
public byte[] generatorCode(String[] tableNames) {
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    ZipOutputStream zip = new ZipOutputStream(outputStream);

    for(String tableName : tableNames){
        //查询表信息
        Map<String, String> table = queryTable(tableName);
        //查询列信息
        List<Map<String, String>> columns = queryColumns(tableName);
        //生成代码
        GenUtils.generatorCode(table, columns, zip);
    }
    IOUtils.closeQuietly(zip);
    return outputStream.toByteArray();
}
 

/**
 * Decompress a byte array which was compressed using Deflate.
 * @param bytearray non-null byte array to be decompressed
 * @return the decompressed payload or an empty array in case of bytearray is null
 * @throws DataFormatException in case the payload cannot be decompressed
 */
public static byte[] decompressUsingInflate(byte[] bytearray) throws DataFormatException {
  if (bytearray == null) return new byte[0];

  try (final ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
    final Inflater inflater = new Inflater();
    final byte[] buff = new byte[1024];

    inflater.setInput(bytearray);

    while (!inflater.finished()) {
      int count = inflater.inflate(buff);
      bos.write(buff, 0, count);
    }

    inflater.end();
    bos.flush();
    return bos.toByteArray();
  } catch (IOException e) {
    throw new DataFormatException(e.getMessage());
  }
}
 

DistributedKeySignature(String signatureAlgorithm) throws NoSuchAlgorithmException {
   LOG.debug("constructor: " + signatureAlgorithm);
   this.signatureAlgorithm = signatureAlgorithm;
   if (!digestAlgos.containsKey(signatureAlgorithm)) {
      LOG.error("no such algo: " + signatureAlgorithm);
      throw new NoSuchAlgorithmException(signatureAlgorithm);
   } else {
      String digestAlgo = (String)digestAlgos.get(signatureAlgorithm);
      if (null != digestAlgo) {
         this.messageDigest = MessageDigest.getInstance(digestAlgo);
         this.precomputedDigestOutputStream = null;
      } else {
         LOG.debug("NONE message digest");
         this.messageDigest = null;
         this.precomputedDigestOutputStream = new ByteArrayOutputStream();
      }

   }
}
 

/**
 * Produce a string that is a decomposition of the given x.509 or ASN1 encoded
 * object.  For learning and debugging purposes.
 */
public static String decomposeASN1Encoded(ByteString input)
  throws Exception
{
  ByteArrayOutputStream byte_out = new ByteArrayOutputStream();
  PrintStream out = new PrintStream(byte_out);

  ASN1StreamParser parser = new ASN1StreamParser(input.toByteArray());
  out.println("ASN1StreamParser");

  while(true)
  {
    ASN1Encodable encodable = parser.readObject();
    if (encodable == null) break;

    decomposeEncodable(encodable, 2, out);
  }

  out.flush();
  return new String(byte_out.toByteArray());

}
 

/**
 * 解压
 * @param data
 * @return
 * @throws Exception
 */
public static byte[] ungzip(byte[] data) throws Exception {
    ByteArrayInputStream bis = new ByteArrayInputStream(data);
    GZIPInputStream gzip = new GZIPInputStream(bis);
    byte[] buf = new byte[1024];
    int num = -1;
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    while ((num = gzip.read(buf, 0, buf.length)) != -1) {
        bos.write(buf, 0, num);
    }
    gzip.close();
    bis.close();
    byte[] ret = bos.toByteArray();
    bos.flush();
    bos.close();
    return ret;
}
 

@Test
/**
 * verify that umlaut like äö etc are not encoded in UTF-8 in attributes
 */
public void testSerializeUmlaut() throws IOException {
  Element xml = Manager.parse(context,
	  TestingUtilities.loadTestResourceStream("validator", "cda", "example.xml"), FhirFormat.XML);
  
  List<Element> title = xml.getChildrenByName("title");
  assertTrue(title != null && title.size() == 1);
  
  
  Element value = title.get(0).getChildren().get(0);
  Assertions.assertEquals("Episode Note", value.getValue());
  value.setValue("öé");
  
  ByteArrayOutputStream baosXml = new ByteArrayOutputStream();
  Manager.compose(TestingUtilities.context(), xml, baosXml, FhirFormat.XML, OutputStyle.PRETTY, null);
  String cdaSerialised = baosXml.toString("UTF-8");
  assertTrue(cdaSerialised.indexOf("öé") > 0);
}
 

/**
 * Encodes a byte array into percent encoding
 *
 * @param source The byte-representation of the string.
 * @param bitSet The BitSet for characters to skip encoding
 * @return The percent-encoded byte array
 */
public static byte[] encode(byte[] source, BitSet bitSet) {
    ByteArrayOutputStream bos = new ByteArrayOutputStream(source.length * 2);
    for (int i = 0; i < source.length; i++) {
        int b = source[i];
        if (b < 0) {
            b += 256;
        }
        if (bitSet.get(b)) {
            bos.write(b);
        } else {
            bos.write('%');
            char hex1 = Character.toUpperCase(Character.forDigit((b >> 4) & 0xF, 16));
            char hex2 = Character.toUpperCase(Character.forDigit(b & 0xF, 16));
            bos.write(hex1);
            bos.write(hex2);
        }
    }
    return bos.toByteArray();
}
 

/**
 * Reads a byte array
 *
 * <pre>
 * B b16 b8 data value
 * </pre>
 */
public byte[] readBytes()
    throws IOException
{
    int tag = is.read();

    if (tag == 'N')
        return null;

    if (tag != 'B')
        throw expect("bytes", tag);

    int b16 = is.read();
    int b8 = is.read();

    int len = (b16 << 8) + b8;

    ByteArrayOutputStream bos = new ByteArrayOutputStream();

    for (int i = 0; i < len; i++)
        bos.write(is.read());

    return bos.toByteArray();
}
 

public static byte[] content(URI uri, ProgressMonitor<Long> monitor) throws IOException {
   try (CloseableHttpResponse rsp = get(uri)) {
      if (rsp.getStatusLine().getStatusCode() != 200) {
         throw new IOException("http request failed: " + rsp.getStatusLine().getStatusCode());
      }

      HttpEntity entity = rsp.getEntity();

      long length = entity.getContentLength();
      int clength = (int)length;
      if (clength <= 0 || length >= Integer.MAX_VALUE) clength = 256;

      try (InputStream is = entity.getContent();
           ByteArrayOutputStream os = new ByteArrayOutputStream(clength)) {
         copy(is, os, length, monitor);
         EntityUtils.consume(entity);
         return os.toByteArray();
      }
   }
}
 

public static String encodeToString(BufferedImage image, String type) {
    String imageString = null;
    ByteArrayOutputStream bos = new ByteArrayOutputStream();

    try {
        ImageIO.write(image, type, bos);
        byte[] imageBytes = bos.toByteArray();

        imageString =  new String(Base64.encodeBase64(imageBytes));

        bos.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return imageString;
}
 

@Test
public void marshal() {
    CrossDomainConfig config = new CrossDomainConfig();
    config.setAllowedMethods(Arrays.asList("GET", "OPTIONS"));
    config.setAllowedOrigins(Arrays.asList("a", "b"));
    config.setAllowedHeaders(Arrays.asList("A", "B"));
    config.setAllowCredentials(Boolean.TRUE);

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    JaxbUtil.marshal(config, out);

    JsonObject result = Json.createReader(new ByteArrayInputStream(out.toByteArray())).readObject();

    assertThat(result.getJsonArray("allowedMethods").getValuesAs(JsonString.class)).containsExactlyInAnyOrder(Json.createValue("GET"), Json.createValue("OPTIONS"));
    assertThat(result.getJsonArray("allowedOrigins").getValuesAs(JsonString.class)).containsExactlyInAnyOrder(Json.createValue("a"), Json.createValue("b"));
    assertThat(result.getJsonArray("allowedHeaders").getValuesAs(JsonString.class)).containsExactlyInAnyOrder(Json.createValue("A"), Json.createValue("B"));
    assertThat(result.get("allowCredentials")).isEqualTo(JsonValue.TRUE);
}
 

private static MyClassLoader createClassLoaderWithEventClass() throws Exception {
    String resourceName = EVENT_NAME.replace('.', '/') + ".class";
    try (InputStream is = TestUnloadEventClassCount.class.getClassLoader().getResourceAsStream(resourceName)) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        byte[] buffer = new byte[4096];
        int byteValue = 0;
        while ((byteValue = is.read(buffer, 0, buffer.length)) != -1) {
            baos.write(buffer, 0, byteValue);
        }
        baos.flush();
        MyClassLoader myClassLoader = new MyClassLoader();
        Class<?> eventClass = myClassLoader.defineClass(EVENT_NAME, baos.toByteArray());
        if (eventClass == null) {
            throw new Exception("Could not define test class");
        }
        if (eventClass.getSuperclass() != Event.class) {
            throw new Exception("Superclass should be jdk.jfr.Event");
        }
        if (eventClass.getSuperclass().getClassLoader() != null) {
            throw new Exception("Class loader of jdk.jfr.Event should be null");
        }
        if (eventClass.getClassLoader() != myClassLoader) {
            throw new Exception("Incorrect class loader for event class");
        }
        eventClass.newInstance(); // force <clinit>
        return myClassLoader;
    }
}
 

/**
 * event handler method to handle the FlowFile being forwarded to the Processor by the framework. The FlowFile contents is sent out over a TCP connection using an acquired ChannelSender object. If
 * the FlowFile contents was sent out successfully then the FlowFile is forwarded to the success relationship. If an error occurred then the FlowFile is forwarded to the failure relationship.
 *
 * @param context
 *            - the current process context.
 *
 * @param sessionFactory
 *            - a factory object to obtain a process session.
 */
@Override
public void onTrigger(final ProcessContext context, final ProcessSessionFactory sessionFactory) throws ProcessException {
    final ProcessSession session = sessionFactory.createSession();
    final FlowFile flowFile = session.get();
    if (flowFile == null) {
        pruneIdleSenders(context.getProperty(IDLE_EXPIRATION).asTimePeriod(TimeUnit.MILLISECONDS).longValue());
        context.yield();
        return;
    }

    ChannelSender sender = acquireSender(context, session, flowFile);
    if (sender == null) {
        return;
    }

    try {
        String outgoingMessageDelimiter = getOutgoingMessageDelimiter(context, flowFile);
        ByteArrayOutputStream content = readContent(session, flowFile);
        if (outgoingMessageDelimiter != null) {
            Charset charset = Charset.forName(context.getProperty(CHARSET).getValue());
            content = appendDelimiter(content, outgoingMessageDelimiter, charset);
        }
        StopWatch stopWatch = new StopWatch(true);
        sender.send(content.toByteArray());
        session.getProvenanceReporter().send(flowFile, transitUri, stopWatch.getElapsed(TimeUnit.MILLISECONDS));
        session.transfer(flowFile, REL_SUCCESS);
        session.commit();
    } catch (Exception e) {
        onFailure(context, session, flowFile);
        getLogger().error("Exception while handling a process session, transferring {} to failure.", new Object[] { flowFile }, e);
    } finally {
        // If we are going to use this sender again, then relinquish it back to the pool.
        if (!isConnectionPerFlowFile(context)) {
            relinquishSender(sender);
        } else {
            sender.close();
        }
    }
}
 

@Override
protected void _decrypt(byte[] data, ByteArrayOutputStream stream) {
    int noBytesProcessed;
    byte[] buffer = new byte[data.length];

    noBytesProcessed = decCipher.processBytes(data, 0, data.length, buffer, 0);
    stream.write(buffer, 0, noBytesProcessed);
}
 

void convertToNodes() throws CanonicalizationException,
    ParserConfigurationException, IOException, SAXException {
    if (dfactory == null) {
        dfactory = DocumentBuilderFactory.newInstance();
        dfactory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, Boolean.TRUE);
        dfactory.setValidating(false);
        dfactory.setNamespaceAware(true);
    }
    DocumentBuilder db = dfactory.newDocumentBuilder();
    // select all nodes, also the comments.
    try {
        db.setErrorHandler(new com.sun.org.apache.xml.internal.security.utils.IgnoreAllErrorHandler());

        Document doc = db.parse(this.getOctetStream());
        this.subNode = doc;
    } catch (SAXException ex) {
        // if a not-wellformed nodeset exists, put a container around it...
        ByteArrayOutputStream baos = new ByteArrayOutputStream();

        baos.write("<container>".getBytes("UTF-8"));
        baos.write(this.getBytes());
        baos.write("</container>".getBytes("UTF-8"));

        byte result[] = baos.toByteArray();
        Document document = db.parse(new ByteArrayInputStream(result));
        this.subNode = document.getDocumentElement().getFirstChild().getFirstChild();
    } finally {
        if (this.inputOctetStreamProxy != null) {
            this.inputOctetStreamProxy.close();
        }
        this.inputOctetStreamProxy = null;
        this.bytes = null;
    }
}
 

@Override
protected void compile() throws IOException {
    final ByteArrayOutputStream out = new ByteArrayOutputStream();
    final ByteArrayOutputStream err = new ByteArrayOutputStream();
    final List<String> args = getCompilerArgs();
    int errors;
    try {
        errors = evaluateScript(out, err, args.toArray(new String[args.size()]));
    } catch (final AssertionError e) {
        final PrintWriter writer = new PrintWriter(err);
        e.printStackTrace(writer);
        writer.flush();
        errors = 1;
    }
    if (errors != 0 || checkCompilerMsg) {
        result.err = err.toString();
        if (expectCompileFailure || checkCompilerMsg) {
            final PrintStream outputDest = new PrintStream(new FileOutputStream(getErrorFileName()));
            TestHelper.dumpFile(outputDest, new StringReader(new String(err.toByteArray())));
            outputDest.println("--");
        }
        if (errors != 0 && !expectCompileFailure) {
            fail(String.format("%d errors compiling %s", errors, testFile));
        }
        if (checkCompilerMsg) {
            compare(getErrorFileName(), expectedFileName, true);
        }
    }
    if (expectCompileFailure && errors == 0) {
        fail(String.format("No errors encountered compiling negative test %s", testFile));
    }
}
 

public static String encodeBinaryData( byte[] val ) throws IOException {
  ByteArrayOutputStream baos = new ByteArrayOutputStream();
  GZIPOutputStream gzos = new GZIPOutputStream( baos );
  BufferedOutputStream bos = new BufferedOutputStream( gzos );
  bos.write( val );
  bos.flush();
  bos.close();

  return new String( Base64.encodeBase64( baos.toByteArray() ) );
}
 

static byte[] inputStreamToByteArray(final InputStream is) throws IOException {
    final ByteArrayOutputStream buf = new ByteArrayOutputStream();
    final byte[] temp = new byte[1024];
    int read;
    while ((read = is.read(temp)) > 0) {
        buf.write(temp, 0, read);
    }
    is.close();
    return buf.toByteArray();
}
 

@Override
public ExecutionResult executeScript(String source, RequestContainer request, ResponseContainer response, RequestExecutionContext context) {
    ByteArrayOutputStream logStream = new ByteArrayOutputStream();
    initGlobalBindings();

    Bindings bindings = engine.createBindings();
    engine.setContext(new SimpleScriptContext());

    //we need to use globalBindings as engnine bindings and the normal bindings as globalBindings, otherwise things like chai dont work
    //bc they modify object prototype and this change is not resolved if in global scope

    engine.getContext().setBindings(bindings, ScriptContext.GLOBAL_SCOPE);
    engine.getContext().setBindings(globalBindings, ScriptContext.ENGINE_SCOPE);

    engine.getContext().setErrorWriter(new OutputStreamWriter(logStream));
    engine.getContext().setWriter(new OutputStreamWriter(logStream));

    var facade = new MilkmanNashornFacade(request, response, context, toaster);
    bindings.put("milkman", facade);
    bindings.put("mm", facade);

    try {
        Object eval = engine.eval(source);
        return new ExecutionResult(logStream.toString(), Optional.ofNullable(eval));
    } catch (Exception e) {
        String causeMessage = ExceptionUtils.getRootCauseMessage(e);
        toaster.showToast("Failed to execute script: " + causeMessage);
        log.error("failed to execute script", e);
    }
    return new ExecutionResult(logStream.toString(), Optional.empty());
}
 

static void setUp() throws Exception {
    testarray = new float[1024];
    for (int i = 0; i < 1024; i++) {
        double ii = i / 1024.0;
        ii = ii * ii;
        testarray[i] = (float)Math.sin(10*ii*2*Math.PI);
        testarray[i] += (float)Math.sin(1.731 + 2*ii*2*Math.PI);
        testarray[i] += (float)Math.sin(0.231 + 6.3*ii*2*Math.PI);
        testarray[i] *= 0.3;
    }
    test_byte_array = new byte[testarray.length*2];
    AudioFloatConverter.getConverter(format).toByteArray(testarray, test_byte_array);
    buffer = new ModelByteBuffer(test_byte_array);

    byte[] test_byte_array2 = new byte[testarray.length*3];
    buffer24 = new ModelByteBuffer(test_byte_array2);
    test_byte_array_8ext = new byte[testarray.length];
    byte[] test_byte_array_8_16 = new byte[testarray.length*2];
    AudioFloatConverter.getConverter(format24).toByteArray(testarray, test_byte_array2);
    int ix = 0;
    int x = 0;
    for (int i = 0; i < test_byte_array_8ext.length; i++) {
        test_byte_array_8ext[i] = test_byte_array2[ix++];
        test_byte_array_8_16[x++] = test_byte_array2[ix++];
        test_byte_array_8_16[x++] = test_byte_array2[ix++];
    }
    buffer16_8 = new ModelByteBuffer(test_byte_array_8_16);
    buffer8 = new ModelByteBuffer(test_byte_array_8ext);

    AudioInputStream ais = new AudioInputStream(buffer.getInputStream(), format, testarray.length);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    AudioSystem.write(ais, AudioFileFormat.Type.WAVE, baos);
    buffer_wave = new ModelByteBuffer(baos.toByteArray());
}
 

public static Character encodeDecode(Character character) {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    XMLEncoder encoder = new XMLEncoder(out);
    encoder.writeObject(character);
    encoder.close();
    ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
    return (Character)new XMLDecoder(in).readObject();

}