reader.close();
  }

  @Override
  public int read() throws IOException {
    return (read(singleByte) == 1) ? UnsignedBytes.toInt(singleByte[0]) : -1;
  }

  // TODO(chrisn): Consider trying to encode/flush directly to the argument byte
  // buffer when possible.
  @Override
  public int read(byte[] b, int off, int len) throws IOException {
    // Obey InputStream contract.

    reader.close();
  }

  @Override
  public int read() throws IOException {
    return (read(singleByte) == 1) ? UnsignedBytes.toInt(singleByte[0]) : -1;
  }

  // TODO(chrisn): Consider trying to encode/flush directly to the argument byte
  // buffer when possible.
  @Override
  public int read(byte[] b, int off, int len) throws IOException {
    // Obey InputStream contract.

* StatefulSets now include an alpha scaling feature accessible by setting the `spec.podManagementPolicy` field to `Parallel`.  The controller will not wait for pods to be ready before adding the other pods, and will replace deleted pods as needed.  Since parallel scaling creates pods out of order, you cannot depend on predictable membership changes within your set. ([#44899](https://github.com/kubernetes/kubernetes/pull/44899),...

Most of these settings are variable (can change), like database URLs. And many could be sensitive, like secrets.

For this reason it's common to provide them in environment variables that are read by the application.

/// tip

To understand environment variables you can read [Environment Variables](../environment-variables.md){.internal-link target=_blank}.

///

## Types and validation

    out.writeDouble(Double.longBitsToDouble(0xDEADBEEFCAFEBABEL));

    byte[] data = baos.toByteArray();

    /* Setup input streams */
    DataInput in = new DataInputStream(new ByteArrayInputStream(data));

    /* Read in various values NORMALLY */
    byte[] b = new byte[2];
    in.readFully(b);
    assertEquals(-100, b[0]);
    assertEquals(100, b[1]);
    assertEquals(true, in.readBoolean());
    assertEquals(false, in.readBoolean());

    out.writeDouble(Double.longBitsToDouble(0xDEADBEEFCAFEBABEL));

    byte[] data = baos.toByteArray();

    /* Setup input streams */
    DataInput in = new DataInputStream(new ByteArrayInputStream(data));

    /* Read in various values NORMALLY */
    byte[] b = new byte[2];
    in.readFully(b);
    assertEquals(-100, b[0]);
    assertEquals(100, b[1]);
    assertEquals(true, in.readBoolean());
    assertEquals(false, in.readBoolean());

func TestComparatorMismatchedConfigs(t *testing.T) {
	cfg, err := os.ReadFile("testdata/configdump.json")
	if err != nil {
		t.Fatalf("Failed to read test data: %v", err)
	}
	diffCfg, err := os.ReadFile("testdata/configdump_diff.json")
	if err != nil {
		t.Fatalf("Failed to read test data: %v", err)
	}

	var outputBuffer bytes.Buffer
	comparator, err := NewComparator(&outputBuffer, map[string][]byte{"default": cfg}, diffCfg)

var ErrAlreadyLocked = errors.New("file already locked")

// RLockedFile represents a read locked file, implements a special
// closer which only closes the associated *os.File when the ref count.
// has reached zero, i.e when all the readers have given up their locks.
type RLockedFile struct {
	*LockedFile
	mutex sync.Mutex
	refs  int // Holds read lock refs.
}

// IsClosed - Check if the rlocked file is already closed.

     */
    CombinedInterface groovyProp

    /**
     * A read-only groovy property.
     */
    final String readOnlyGroovyProp

    /**
     * An array property.
     */
    def String[] arrayProp

    private def ignoreMe1;
    public int ignoreMe2;
    protected int ignoreMe3;
    static String ignoreMe4;

    /**
     * A read-only property.
     */
    def getReadOnly() {
        'value'

/// tip

The next sections are **not necessarily "advanced"**.

And it's possible that for your use case, the solution is in one of them.

///

## Read the Tutorial first

The next sections assume you already read the main [Tutorial - User Guide: Security](../../tutorial/security/index.md){.internal-link target=_blank}.