hessian-lite/src/main/java/com/alibaba/com/caucho/hessian/io/FieldDeserializer2Factory.java [83:121]:
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    protected static Object getParamArg(Class<?> cl) {
        if (!cl.isPrimitive())
            return null;
        else if (boolean.class.equals(cl))
            return Boolean.FALSE;
        else if (byte.class.equals(cl))
            return new Byte((byte) 0);
        else if (short.class.equals(cl))
            return new Short((short) 0);
        else if (char.class.equals(cl))
            return new Character((char) 0);
        else if (int.class.equals(cl))
            return Integer.valueOf(0);
        else if (long.class.equals(cl))
            return Long.valueOf(0);
        else if (float.class.equals(cl))
            return Float.valueOf(0);
        else if (double.class.equals(cl))
            return Double.valueOf(0);
        else
            throw new UnsupportedOperationException();
    }

    static void logDeserializeError(Field field, Object obj, Object value,
                                    Throwable e)
            throws IOException {
        String fieldName = (field.getDeclaringClass().getName()
                + "." + field.getName());

        if (e instanceof HessianFieldException)
            throw (HessianFieldException) e;
        else if (e instanceof IOException)
            throw new HessianFieldException(fieldName + ": " + e.getMessage(), e);

        if (value != null)
            throw new HessianFieldException(fieldName + ": " + value.getClass().getName()
                    + " cannot be assigned to '" + field.getType().getName() + "'", e);
        else
            throw new HessianFieldException(fieldName + ": " + field.getType().getName() + " cannot be assigned from null", e);
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hessian-lite/src/main/java/com/alibaba/com/caucho/hessian/io/JavaDeserializer.java [88:126]:
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    protected static Object getParamArg(Class<?> cl) {
        if (!cl.isPrimitive())
            return null;
        else if (boolean.class.equals(cl))
            return Boolean.FALSE;
        else if (byte.class.equals(cl))
            return new Byte((byte) 0);
        else if (short.class.equals(cl))
            return new Short((short) 0);
        else if (char.class.equals(cl))
            return new Character((char) 0);
        else if (int.class.equals(cl))
            return Integer.valueOf(0);
        else if (long.class.equals(cl))
            return Long.valueOf(0);
        else if (float.class.equals(cl))
            return Float.valueOf(0);
        else if (double.class.equals(cl))
            return Double.valueOf(0);
        else
            throw new UnsupportedOperationException();
    }

    static void logDeserializeError(Field field, Object obj, Object value,
                                    Throwable e)
            throws IOException {
        String fieldName = (field.getDeclaringClass().getName()
                + "." + field.getName());

        if (e instanceof HessianFieldException)
            throw (HessianFieldException) e;
        else if (e instanceof IOException)
            throw new HessianFieldException(fieldName + ": " + e.getMessage(), e);

        if (value != null)
            throw new HessianFieldException(fieldName + ": " + value.getClass().getName()
                    + " cannot be assigned to '" + field.getType().getName() + "'", e);
        else
            throw new HessianFieldException(fieldName + ": " + field.getType().getName() + " cannot be assigned from null", e);
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