OkHttp uses your platform's built-in TLS implementation. On Java platforms OkHttp also supports
[Conscrypt][conscrypt], which integrates [BoringSSL](https://github.com/google/boringssl) with Java. OkHttp will use Conscrypt if it is
the first security provider:

```java
Security.insertProviderAt(Conscrypt.newProvider(), 1);
```

The OkHttp `3.12.x` branch supports Android 2.3+ (API level 9+) and Java 7+. These platforms lack

    builders:
      - inject:
          properties-file: '.ci/java-versions.properties'
          properties-content: |
            JAVA_HOME=$HOME/.java/$ES_BUILD_JAVA
            RUNTIME_JAVA_HOME=$HOME/.java/$ES_RUNTIME_JAVA
            JAVA8_HOME=$HOME/.java/java8
            JAVA11_HOME=$HOME/.java/java11
            JAVA15_HOME=$HOME/.java/openjdk15
      - shell: |
          #!/usr/local/bin/runbld --redirect-stderr

 */

package jcifs.smb;

import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InterruptedIOException;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketException;
import java.security.MessageDigest;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedList;

    internal
    fun checkBinaryCompatibleJava(@Language("java") v1: String = "", @Language("java") v2: String, block: CheckResult.() -> Unit = {}): CheckResult =
        runJavaBinaryCompatibilityCheck(v1, v2) {
            assertBinaryCompatible()
            block()
        }

    internal
    fun checkNotBinaryCompatibleJava(@Language("java") v1: String = "", @Language("java") v2: String, block: CheckResult.() -> Unit = {}): CheckResult =

        if: ${{ matrix.language == 'java' }}

    - name: Disable checksum offloading
      # See: https://github.com/actions/virtual-environments/issues/1187#issuecomment-686735760
      run: sudo ethtool -K eth0 tx off rx off

    # Install and setup JDK 17
    - name: Setup JDK 17
      uses: actions/setup-java@v5
      with:
        distribution: temurin
        java-version: 17

    node: "macosx && x86_64"
    builders:
      - inject:
          properties-file: '.ci/java-versions.properties'
          properties-content: |
            JAVA_HOME=$HOME/.java/$ES_BUILD_JAVA
            RUNTIME_JAVA_HOME=$HOME/.java/$ES_RUNTIME_JAVA
            JAVA15_HOME=$HOME/.java/openjdk15
      - shell: |
          #!/usr/local/bin/runbld --redirect-stderr

Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
    fi
else
    JAVACMD=java
    if ! command -v java >/dev/null 2>&1
    then
        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.

Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
    fi
fi

[Mockito](https://github.com/mockito/mockito):

1. Script the mocks.
2. Run application code.
3. Verify that the expected requests were made.

Here's a complete example:

### Java
```java
public void test() throws Exception {
  // Create a MockWebServer. These are lean enough that you can create a new
  // instance for every unit test.
  MockWebServer server = new MockWebServer();

jobs:
  publish:
    runs-on: macos-15

    steps:
      - uses: actions/checkout@v6
      - uses: actions/setup-java@v5
        with:
          distribution: 'temurin'
          java-version-file: .github/workflows/.java-version

      - run: ./gradlew publish
        env:
          ORG_GRADLE_PROJECT_mavenCentralUsername: ${{ secrets.SONATYPE_CENTRAL_USERNAME }}

      implementationClass = 'org.elasticsearch.gradle.internal.test.rerun.TestRerunPlugin'
    }
    java {
      id = 'elasticsearch.java'
      implementationClass = 'org.elasticsearch.gradle.internal.ElasticsearchJavaPlugin'
    }
    internalJavaRestTest {
      id = 'elasticsearch.internal-java-rest-test'
      implementationClass = 'org.elasticsearch.gradle.internal.test.rest.InternalJavaRestTestPlugin'
    }