Examples of java.io.PushbackInputStream.unread()

java.io.PushbackInputStream.unread()
Pushes back a byte by copying it to the front of the pushback buffer. After this method returns, the next byte to be read will have the value (byte)b. @param b the int value whose low-order byte is to be pushed back. @exception IOException If there is not enough room in the pushbackbuffer for the byte, or this input stream has been closed by invoking its {@link #close()} method.

        }


        try {
            final PushbackInputStream pis = 
                new PushbackInputStream(encryptedAttachments.get(0).getSourceStream(), 1);
            pis.unread('K');
            encryptedAttachments.get(0).setSourceStream(pis);
            
            attachmentCallbackHandler = new AttachmentCallbackHandler(encryptedAttachments);
            verify(encryptedDoc, attachmentCallbackHandler);
        } catch (WSSecurityException e) {

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            String outputString = XMLUtils.PrettyDocumentToString(doc);
            LOG.debug(outputString);
        }


        final PushbackInputStream pis = new PushbackInputStream(attachment[0].getSourceStream(), 1);
        pis.unread('K');
        attachment[0].setSourceStream(pis);
        try {
            verify(doc, new CallbackHandler() {
                @Override
                public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {

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        try {
            PushbackInputStream pin = 
                new PushbackInputStream(connection.getInputStream());
            int c = pin.read();
            if (c != -1) {
                pin.unread((byte)c);
                in = pin;
            }
        } catch (IOException ioe) {
            // ignore
        }

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        try {
            PushbackInputStream pin = 
                new PushbackInputStream(connection.getInputStream());
            int c = pin.read();
            if (c != -1) {
                pin.unread((byte)c);
                in = pin;
            }
        } catch (IOException ioe) {
            // ignore
        }

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        try {
            PushbackInputStream pin = 
                new PushbackInputStream(connection.getInputStream());
            int c = pin.read();
            if (c != -1) {
                pin.unread((byte)c);
                in = pin;
            }
        } catch (IOException ioe) {
            // ignore
        }

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        byte[] messageBytes = ("------=_Part_1\n\nJJJJ\n------=_Part_1\n\n"
            + "Content-Transfer-Encoding: binary\n\n=3D=3D=3D\n------=_Part_1\n").getBytes();
        PushbackInputStream pushbackStream = new PushbackInputStream(new ByteArrayInputStream(messageBytes),
                                                                     2048);
        pushbackStream.read(new byte[4096], 0, 4015);
        pushbackStream.unread(messageBytes);
        pushbackStream.read(new byte[72]);


        MimeBodyPartInputStream m = new MimeBodyPartInputStream(pushbackStream, "------=_Part_1".getBytes(),
                                                                2048);

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        try {
            PushbackInputStream pin = 
                new PushbackInputStream(connection.getInputStream());
            int c = pin.read();
            if (c != -1) {
                pin.unread((byte)c);
                in = pin;
            }
        } catch (IOException ioe) {
            // ignore
        }

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        if (inputStream != null) {
            try {
                PushbackInputStream pushbackInputStream = new PushbackInputStream(inputStream);
                int b;
                if ((b = pushbackInputStream.read()) > 0) {
                    pushbackInputStream.unread(b);
                    javax.xml.stream.XMLStreamReader xmlReader;


                    if ("true".equals(messageContext.getProperty(Constants.Configuration.APPLICATION_XML_BUILDER_ALLOW_DTD)) ||
                            ((messageContext.getParameter(Constants.Configuration.APPLICATION_XML_BUILDER_ALLOW_DTD) != null) && (
                                    "true".equals(messageContext.getParameter(Constants.Configuration.APPLICATION_XML_BUILDER_ALLOW_DTD).getValue())))) {

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                try {
                    int next = pbi.read();


                    if (next != -1) {
                        pbi.unread(next);
                        requestStream = pbi;
                    } else {
                        requestStream = null;
                    }
                } catch (IOException e) {

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                PushbackInputStream in = new PushbackInputStream(inputStream);


                //Block until we have some data
                int i = in.read();
                //Roll back our read
                in.unread(i);
                MuleMessage message = createMuleMessage(in, encoding);
                routeMessage(message);
            }
            else
            {

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