if (variableName == null) {
            String msg = "The value should not be null: variableName=null value=" + value;
            throw new IllegalArgumentException(msg);
        }
        if (value == null) {
            String msg = "The value should not be null: variableName=" + variableName;
            throw new IllegalArgumentException(msg);
        }
    }

OkHttp 3.x. You can use an OkHttp 4.x .jar file with applications or libraries built for OkHttp 3.x.

OkHttp is **not** source-compatible for Kotlin callers, but upgrading should be automatic thanks to
Kotlin’s powerful deprecation features. Most developers should be able to use IntelliJ’s _Code
Cleanup_ for a safe and fast upgrade.


Backwards-Incompatible Changes
------------------------------

#### OkHttpClient final methods

import java.util.Iterator;
import java.util.Objects;
import java.util.Set;
import org.jspecify.annotations.Nullable;

/**
 * A multiset which forwards all its method calls to another multiset. Subclasses should override
 * one or more methods to modify the behavior of the backing multiset as desired per the <a
 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *

       * running under Jelly Bean or higher. But it seems safest to check.
       */
      if (version < jellyBean) {
        return new ThrowingCreator();
      }
    } catch (ReflectiveOperationException e) {
      // Should be impossible, but we want to return *something* so that class init succeeds.
      return new ThrowingCreator();
    }

    // Android isolates apps' temporary directories since Jelly Bean:

        synchronized (queue) {
          workerRunningState = IDLE;
        }
        throw e;
        // The execution of a task has ended abnormally.
        // We could have tasks left in the queue, so should perhaps try to restart a worker,
        // but then the Error will get delayed if we are using a direct (same thread) executor.
      }
    }

    /**

        synchronized (queue) {
          workerRunningState = IDLE;
        }
        throw e;
        // The execution of a task has ended abnormally.
        // We could have tasks left in the queue, so should perhaps try to restart a worker,
        // but then the Error will get delayed if we are using a direct (same thread) executor.
      }
    }

    /**

// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package sql

import (
	"errors"
	"fmt"
	"strings"

      if (Build.FINGERPRINT == null) {
        throw IOException(
          "Platform applicationContext not initialized. " +
            "Possibly running Android unit test without Robolectric. " +
            "Android tests should run with Robolectric " +
            "and call OkHttp.initialize before test",
        )
      } else {
        throw IOException(
          "Platform applicationContext not initialized. " +

 * that contain words to be filtered from search results.
 */
public class UploadForm {

    /**
     * The multipart file containing bad words to be uploaded.
     * This file should contain a list of words that will be filtered from search results.
     */
    @Required
    public MultipartFormFile badWordFile;

    /**
     * Default constructor for UploadForm.

import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * This annotation indicates that the annotated type is <strong>not</strong> threadsafe
 * and should only be used by a single thread.
 *
 * @see ThreadSafe
 * @since 4.0.0
 */
@Experimental
@Documented
@Retention(RetentionPolicy.CLASS)
@Target(ElementType.TYPE)