return new ByteArrayOutputStream();
        }
    }

    /**
     * Creates an OutputStream from a ToXContent object with the specified media type.
     *
     * @param xContent the content object to convert
     * @param mediaType the media type for the output
     * @return an OutputStream containing the converted content
     */

        if (bytes.length != 16) {
            throw new IllegalArgumentException("GUID must be 16 bytes");
        }

        // MS-SMB2 specifies little-endian byte ordering for GUID components
        // Convert from little-endian wire format to Java UUID
        ByteBuffer bb = ByteBuffer.wrap(bytes).order(java.nio.ByteOrder.LITTLE_ENDIAN);

        // Read GUID components in little-endian order

				a.setInt(iA)
			} else if fA, ok := a.bytesToFloat(); ok {
				a.setFloat(fA)
			} else {
				return fmt.Errorf("Could not convert %s to a number", a.String())
			}

		case bool:
			if bA, ok := a.bytesToBool(); ok {
				a.setBool(bA)
			} else {
				return fmt.Errorf("Could not convert %s to a boolean", a.String())
			}

		default:
			return errCmpMismatchedTypes
		}
		return nil

BeanUtil.copyBeanToBean(source, destination, options -> 
    options.exclude("password", "internalId"));

// Convert between beans and maps
Map<String, Object> map = BeanUtil.copyBeanToNewMap(bean);
MyBean newBean = BeanUtil.copyMapToNewBean(map, MyBean.class);
```

### Type Conversion
```java
import org.codelibs.core.convert.*;

// Safe type conversions with null handling

  @CanIgnoreReturnValue
  public CharEscaperBuilder addEscapes(char[] cs, String r) {
    checkNotNull(r);
    for (char c : cs) {
      addEscape(c, r);
    }
    return this;
  }

  /**
   * Convert this builder into an array of char[]s where the maximum index is the value of the
   * highest character that has been seen. The array will be sparse in the sense that any unseen
   * index will default to null.
   *

    assertEquals((Integer) 1, converter.convert("one"));
    assertEquals((Integer) 2, converter.convert("two"));
    assertThrows(IllegalArgumentException.class, () -> converter.convert("three"));

    biMap.put("three", 3);

    assertEquals((Integer) 1, converter.convert("one"));
    assertEquals((Integer) 2, converter.convert("two"));
    assertEquals((Integer) 3, converter.convert("three"));
  }

    }

    /**
     * Stores a protected words item (insert or update).
     * @param dictId the dictionary ID
     * @param protwordsItem the item to store
     */
    public void store(final String dictId, final ProtwordsItem protwordsItem) {
        getProtwordsFile(dictId).ifPresent(file -> {
            if (protwordsItem.getId() == 0) {
                file.insert(protwordsItem);
            } else {

    assertThat(formEncode(8)).isEqualTo("%08")
    assertThat(formEncode(9)).isEqualTo("%09")
    // Browsers convert '\n' to '\r\n'
    assertThat(formEncode(10)).isEqualTo("%0A")
    assertThat(formEncode(11)).isEqualTo("%0B")
    assertThat(formEncode(12)).isEqualTo("%0C")
    // Browsers convert '\r' to '\r\n'
    assertThat(formEncode(13)).isEqualTo("%0D")
    assertThat(formEncode(14)).isEqualTo("%0E")

    //                                                                              ======
    public void insert(AccessToken entity) {
        doInsert(entity, null);
    }

    public void insert(AccessToken entity, RequestOptionCall<IndexRequestBuilder> opLambda) {
        entity.asDocMeta().indexOption(opLambda);
        doInsert(entity, null);
    }

    //                                                                              ======
    public void insert(ElevateWordToLabel entity) {
        doInsert(entity, null);
    }

    public void insert(ElevateWordToLabel entity, RequestOptionCall<IndexRequestBuilder> opLambda) {
        entity.asDocMeta().indexOption(opLambda);
        doInsert(entity, null);
    }