shims/qpid-jms/src/main/java/org/apache/qpid/interop_test/jms_hdrs_props_test/Receiver.java [505:565]:
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        jsonWriter.close();        
    }

    protected static String formatByte(byte b) {
        boolean neg = false;
        if (b < 0) {
            neg = true;
            b = (byte)-b;
        }
        return String.format("%s0x%x", neg?"-":"", b);
    }
    
    protected static String formatChar(char c) {
        if (Character.isLetterOrDigit(c)) {
            return String.format("%c", c);
        }
        char[] ca = {c};
        return new String(ca);
    }
    
    protected static String formatInt(int i) {
        boolean neg = false;
        if (i < 0) {
            neg = true;
            i = -i;
        }
        return String.format("%s0x%x", neg?"-":"", i);
    }
    
    protected static String formatLong(long l) {
        boolean neg = false;
        if (l < 0) {
            neg = true;
            l = -l;
        }
        return String.format("%s0x%x", neg?"-":"", l);
    }
    
    protected static String formatShort(int s) {
        boolean neg = false;
        if (s < 0) {
            neg = true;
            s = -s;
        }
        return String.format("%s0x%x", neg?"-":"", s);
    }
        
    protected static boolean isSupportedJmsMessageType(String jmsMessageType) {
        for (String supportedJmsMessageType: SUPPORTED_JMS_MESSAGE_TYPES) {
            if (jmsMessageType.equals(supportedJmsMessageType))
                return true;
        }
    return false;
    }

    private static class MyExceptionListener implements ExceptionListener {
        @Override
        public void onException(JMSException exception) {
            System.out.println("Connection ExceptionListener fired, exiting.");
            exception.printStackTrace(System.out);
            System.exit(1);
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shims/qpid-jms/src/main/java/org/apache/qpid/interop_test/jms_messages_test/Receiver.java [342:402]:
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        jsonWriter.close();        
    }

    protected static String formatByte(byte b) {
        boolean neg = false;
        if (b < 0) {
            neg = true;
            b = (byte)-b;
        }
        return String.format("%s0x%x", neg?"-":"", b);
    }
    
    protected static String formatChar(char c) {
        if (Character.isLetterOrDigit(c)) {
            return String.format("%c", c);
        }
        char[] ca = {c};
        return new String(ca);
    }
    
    protected static String formatInt(int i) {
        boolean neg = false;
        if (i < 0) {
            neg = true;
            i = -i;
        }
        return String.format("%s0x%x", neg?"-":"", i);
    }
    
    protected static String formatLong(long l) {
        boolean neg = false;
        if (l < 0) {
            neg = true;
            l = -l;
        }
        return String.format("%s0x%x", neg?"-":"", l);
    }
    
    protected static String formatShort(int s) {
        boolean neg = false;
        if (s < 0) {
            neg = true;
            s = -s;
        }
        return String.format("%s0x%x", neg?"-":"", s);
    }
        
    protected static boolean isSupportedJmsMessageType(String jmsMessageType) {
        for (String supportedJmsMessageType: SUPPORTED_JMS_MESSAGE_TYPES) {
            if (jmsMessageType.equals(supportedJmsMessageType))
                return true;
        }
    return false;
    }

    private static class MyExceptionListener implements ExceptionListener {
        @Override
        public void onException(JMSException exception) {
            System.out.println("Connection ExceptionListener fired, exiting.");
            exception.printStackTrace(System.out);
            System.exit(1);
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