import javax.annotation.CheckForNull;

/**
 * Weak reference with a {@code finalizeReferent()} method which a background thread invokes after
 * the garbage collector reclaims the referent. This is a simpler alternative to using a {@link
 * ReferenceQueue}.
 *
 * @author Bob Lee
 * @since 2.0
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault

package ioutil

import (
	"io"
)

// Discard is just like io.Discard without the io.ReaderFrom compatible
// implementation which is buggy on NUMA systems, we have to use a simpler
// io.Writer implementation alone avoids also unnecessary buffer copies,
// and as such incurred latencies.
var Discard io.Writer = discard{}

// discard is /dev/null for Golang.
type discard struct{}

import junit.framework.TestCase;

/**
 * Tests for {@link PercentEscaper}.
 *
 * @author David Beaumont
 */
@GwtCompatible
public class PercentEscaperTest extends TestCase {

  /** Tests that the simple escaper treats 0-9, a-z and A-Z as safe */
  public void testSimpleEscaper() {
    UnicodeEscaper e = new PercentEscaper("", false);
    for (char c = 0; c < 128; c++) {

# Calls

The HTTP client’s job is to accept your request and produce its response. This is simple in theory but it gets tricky in practice.

## [Requests](https://square.github.io/okhttp/4.x/okhttp/okhttp3/-request/)

Each HTTP request contains a URL, a method (like `GET` or `POST`), and a list of headers. Requests may also contain a body: a data stream of a specific content type.

## [Responses](https://square.github.io/okhttp/4.x/okhttp/okhttp3/-response/)

      creationTimestamp: null
      labels:
        app: hello
        tier: backend
        track: stable
    spec:
      containers:
      - image: fake.docker.io/google-samples/hello-go-gke:1.0
        name: hello
        ports:
        - containerPort: 80
          name: http
        resources: {}
      - image: docker.io/istio/proxy_debug:unittest
        name: istio-proxy

      creationTimestamp: null
      labels:
        app: hello
        tier: backend
        track: stable
    spec:
      containers:
      - image: fake.docker.io/google-samples/hello-go-gke:1.0
        name: hello
        ports:
        - containerPort: 80
          name: http
        resources: {}
      - image: docker.io/istio/proxy_debug:unittest
        name: istio-proxy

 *
 * @author Jared Levy
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public abstract class TestStringCollectionGenerator implements TestCollectionGenerator<String> {
  @Override
  public SampleElements<String> samples() {
    return new Strings();
  }

  @Override
  public Collection<String> create(Object... elements) {
    String[] array = new String[elements.length];
    int i = 0;
    for (Object e : elements) {

 *
 * @author Jared Levy
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public abstract class TestStringQueueGenerator implements TestQueueGenerator<String> {
  @Override
  public SampleElements<String> samples() {
    return new Strings();
  }

  @Override
  public Queue<String> create(Object... elements) {
    String[] array = new String[elements.length];
    int i = 0;
    for (Object e : elements) {

 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public abstract class TestStringListGenerator implements TestListGenerator<String> {
  @Override
  public SampleElements<String> samples() {
    return new Strings();
  }

  @Override
  public List<String> create(Object... elements) {
    String[] array = new String[elements.length];
    int i = 0;
    for (Object e : elements) {

# Grafana Dashboards

This folder contains Istio's official Grafana dashboards.
These get publish to [Grafana](https://grafana.com/orgs/istio/dashboards) during release, and are bundled into our
[Grafana sample](../../../samples/addons/grafana.yaml).

## Jsonnet

Newer dashboards are generated with [Jsonnet](https://jsonnet.org/) with the [Grafonnet](https://grafana.github.io/grafonnet/index.html).