1. Add an Emulator named `pixel5`, if you don't already have one

```
$ sdkmanager --install "system-images;android-29;google_apis;x86"
$ echo "no" | avdmanager --verbose create avd --force --name "pixel5" --device "pixel" --package "system-images;android-29;google_apis;x86" --tag "google_apis" --abi "x86"
```

2. Run an Emulator using Android Studio or from command line.

```

import okhttp3.internal.platform.android.DeferredSocketAdapter
import okhttp3.internal.tls.CertificateChainCleaner
import okhttp3.internal.tls.TrustRootIndex

/** Android 10+ (API 29+). */
@SuppressSignatureCheck
class Android10Platform :
  Platform(),
  ContextAwarePlatform {
  override var applicationContext: Context? = null

  private val socketAdapters =
    listOfNotNull(

        @DisplayName("Returns 0 with null array")
        void nullArray() {
            assertEquals(0, response.readBytesWireFormat(null, 0));
        }

        @ParameterizedTest
        @ValueSource(ints = { 2, 9 })
        @DisplayName("Returns 0 with valid array and various indices")
        void normalArray(int idx) {
            byte[] arr = new byte[12];
            assertEquals(0, response.readBytesWireFormat(arr, idx));

### Override the method { #override-the-method }

Now you can replace the `.openapi()` method with your new function.

{* ../../docs_src/extending_openapi/tutorial001.py hl[29] *}

### Check it { #check-it }

            buffer[21] = (byte) 0xFF;
            // sectPerAlloc (4 bytes)
            buffer[24] = 0x08;
            // bytesPerSect (4 bytes)
            buffer[28] = 0x00;
            buffer[29] = 0x02;

            int bytesDecoded = fileFsFullSizeInfo.decode(buffer, 0, buffer.length);

            assertEquals(32, bytesDecoded);
            // Should use caller available units, not actual free units

            (byte) 38, (byte) 30, (byte) 22, (byte) 14, (byte) 6, (byte) 61, (byte) 53, (byte) 45, (byte) 37, (byte) 29, (byte) 21,
            (byte) 13, (byte) 5, (byte) 60, (byte) 52, (byte) 44, (byte) 36, (byte) 28, (byte) 20, (byte) 12, (byte) 4, (byte) 27,
            (byte) 19, (byte) 11, (byte) 3 };

		globalActiveCred = cfg.Credential
	}

	// Init compression config. For future migration, Compression config needs to be copied over from previous version.
	switch cfg.Version {
	case "29":
		// V29 -> V30
		cfg.Compression.Enabled = false
		cfg.Compression.Extensions = strings.Split(compress.DefaultExtensions, config.ValueSeparator)

    int SYNCHRONIZE = 0x00100000; // 20
    /** Generic all access right */
    int GENERIC_ALL = 0x10000000; // 28
    /** Generic execute access right */
    int GENERIC_EXECUTE = 0x20000000; // 29
    /** Generic write access right */
    int GENERIC_WRITE = 0x40000000; // 30
    /** Generic read access right */
    int GENERIC_READ = 0x80000000; // 31

    // flags for move and copy

    /**
     * Generic all permissions
     */
    int GENERIC_ALL = 0x10000000; // 28
    /**
     * Generic execute permission
     */
    int GENERIC_EXECUTE = 0x20000000; // 29
    /**
     * Generic write permission
     */
    int GENERIC_WRITE = 0x40000000; // 30
    /**
     * Generic read permission
     */
    int GENERIC_READ = 0x80000000; // 31

    /**

        buildHeader(buf, headerStart, NtStatus.NT_STATUS_ACCESS_DENIED, 0x0001, 0x0L);

        int bodyStart = headerStart + Smb2Constants.SMB2_HEADER_LENGTH;
        // Error response structure: size(2)=9, errorContextCount(1), reserved(1), bc(4), errorData(bc)
        SMBUtil.writeInt2(9, buf, bodyStart);
        buf[bodyStart + 2] = 0x02; // errorContextCount
        buf[bodyStart + 3] = 0x00; // reserved
        int bc = 4;