code: protected void initWithWrapperType() {
       // =========== wrapper type ==============
          transformers.put(Boolean.class, new Transformer() {
              @Override
              public SFSDataWrapper transform(Object value) {
                  return new SFSDataWrapper(SFSDataType.BOOL, value);
              }
          });
          transformers.put(Byte.class, new Transformer() {
              @Override
              public SFSDataWrapper transform(Object value) {
                  return new SFSDataWrapper(SFSDataType.BYTE, value);
              }
          });
          transformers.put(Character.class, new Transformer() {
              @Override
              public SFSDataWrapper transform(Object value) {
                  return new SFSDataWrapper(SFSDataType.BYTE, (byte)((Character)value).charValue());
              }
          });
          transformers.put(Double.class, new Transformer() {
              @Override
              public SFSDataWrapper transform(Object value) {
                  return new SFSDataWrapper(SFSDataType.DOUBLE, value);
              }
          });
          transformers.put(Float.class, new Transformer() {
              @Override
              public SFSDataWrapper transform(Object value) {
                  return new SFSDataWrapper(SFSDataType.FLOAT, value);
              }
          });
          transformers.put(Integer.class, new Transformer() {
              @Override
              public SFSDataWrapper transform(Object value) {
                  return new SFSDataWrapper(SFSDataType.INT, value);
              }
          });
          transformers.put(Long.class, new Transformer() {
              @Override
              public SFSDataWrapper transform(Object value) {
                  return new SFSDataWrapper(SFSDataType.LONG, value);
              }
          });
          transformers.put(Short.class, new Transformer() {
              @Override
              public SFSDataWrapper transform(Object value) {
                  return new SFSDataWrapper(SFSDataType.SHORT, value);
              }
          });
      }
docs: Add transformers of wrapper type to the map